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− | == '''Concept Map''' == | + | <div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#ffffff; vertical-align:top; text-align:center; padding:5px;"> |
− | <mm>[[Quadrilaterals.mm|flash]]</mm>
| + | ''[http://karnatakaeducation.org.in/KOER/index.php/ಬಹು_ಭುಜಾಕೃತಿಗಳು ಕನ್ನಡದಲ್ಲಿ ನೋಡಿ]''</div> |
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| + | [http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_History The Story of Mathematics] |
| + | | style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " |[http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Philosophy Philosophy of Mathematics] |
| + | | style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " | |
| + | [http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Pedagogy Teaching of Mathematics] |
| + | | style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " | |
| + | [http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_Curriculum_and_Syllabus Curriculum and Syllabus] |
| + | | style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " | |
| + | [http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Topics Topics in School Mathematics] |
| + | | style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " | |
| + | [http://karnatakaeducation.org.in/KOER/en/index.php/Text_Books#Mathematics_-_Textbooks Textbooks] |
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| + | [http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_Question_Papers Question Bank] |
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| + | While creating a resource page, please click here for a resource creation [http://karnatakaeducation.org.in/KOER/en/index.php/Resource_Creation_Checklist '''checklist''']. |
| | | |
− | = Text Books =
| |
| | | |
− | Please refer the state govt. Text book of mathematics
| + | === Concept Map === |
| + | {{#drawio:mmQuadrilaterals1}} |
| | | |
− | =Additional Information=
| + | ==Textbook== |
− | ==Useful websites== | + | To add textbook links, please follow these instructions to: ([{{fullurl:{{FULLPAGENAME}}/textbook|action=edit}} Click to create the subpage]) |
− | # http://www.shodor.org/ihnteractivate/discussions/Quadrilaterals/ click here : For effective introduction to quadrilaterals.<br>
| + | ==Additional Information== |
− | # http://www.mathopenref.com/quadrilateral.html : Simple explanation about quadrilaterals.
| + | This videos is related to classification and properties of quadrilaterals. |
− | # http://www.slideshare.net/muzzu1999/types-of-quadrilaterals-and-its-properties-group-4 : This website has a very good activity on properties of quadrilaterals.
| |
− | # http://www.cimt.plymouth.ac.uk/projects/mepres/book8/bk8i1/bk8_1i3.htm This is a very good website for students to understand classification of quadrilaterals as per their properties. The activity is given in the form of a flow chart.
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| | | |
− | ==Reference Books== | + | {{#widget:YouTube|id=0OW2bU0So-4}} {{#widget:YouTube|id=udS3nkj2cfg}} |
− | * Please download 9th standard mathematics textbook of Tamil Nadu state syllabus from the following link and refer the page 89 [http://www.textbooksonline.tn.nic.in/Std9.htm click here] | + | ===Useful websites=== |
− | * Refer 9th standard mathematics ncert textbook from the following link [http://www.ncert.nic.in/ncerts/textbook/textbook.htm?iemh1=8-15 click here] | + | #[http://www.shodor.org/ihnteractivate/discussions/Quadrilaterals/ click here] : For effective introduction to quadrilaterals. |
| + | #[http://www.mathopenref.com/quadrilateral.html click here] : Simple explanation about quadrilaterals. |
| + | #[http://www.slideshare.net/muzzu1999/types-of-quadrilaterals-and-its-properties-group-4 click here] : This website has a very good activity on properties of quadrilaterals. |
| + | #[http://www.cimt.plymouth.ac.uk/projects/mepres/book8/bk8i1/bk8_1i3.htm click here] This is a very good website for students to understand classification of quadrilaterals as per their properties. |
| + | ===Reference Books=== |
| + | *Please download 9th standard mathematics textbook of Tamil Nadu state syllabus from the following link and refer the page 89 [http://www.textbooksonline.tn.nic.in/Std9.htm click here] |
| + | *Refer 9th standard mathematics ncert textbook from the following link [http://www.ncert.nic.in/ncerts/textbook/textbook.htm?iemh1=8-15 click here] |
| + | === Additional Resources === |
| | | |
− | = Teaching Outlines = | + | ==== Resource Title ==== |
| + | [http://www.mathopenref.com/tocs/quadrilateraltoc.html Quadrilaterals] |
| + | |
| + | ==== OER ==== |
| + | # List web resources with a brief description of what it contains; how it can be used and whether it can be by teacher/ student or both |
| + | # Books and journals |
| + | # Textbooks |
| + | # Syllabus documents |
| + | |
| + | ==== Non-OER ==== |
| + | # List web resources with a brief description of what it contains; how it can be used and whether it can be by teacher/ student or both |
| + | #* http://www.mathopenref.com/quadrilateral.html : Simple explanation about quadrilaterals. |
| + | #* http://www.slideshare.net/muzzu1999/types-of-quadrilaterals-and-its-properties-group-4 : This website has a very good activity on properties of quadrilaterals. |
| + | #* http://www.cimt.plymouth.ac.uk/projects/mepres/book8/bk8i1/bk8_1i3.htm This is a very good website for students to understand classification of quadrilaterals as per their properties. |
| + | #* http://www.shodor.org/ihnteractivate/discussions/Quadrilaterals/ click here : For effective introduction to quadrilaterals. |
| + | # Books and journals |
| + | #* Please download 9th standard mathematics textbook of Tamil Nadu state syllabus from the following link and refer to page 89 [http://www.textbooksonline.tn.nic.in/Std9.htm click here] |
| + | #* Refer 9th standard mathematics NCERT textbook from the following link [http://www.ncert.nic.in/ncerts/textbook/textbook.htm?iemh1=8-15 click here] |
| + | # Textbooks : Karnataka State Text book of mathematics [http://ktbs.kar.nic.in/new/website%20textbooks/class9/9th%20standard/9th-english-maths-1.pdf Class 9-Chapter 8:Quadrilaterals] |
| + | # Syllabus documents (CBSE, ICSE, IGCSE etc) |
| + | |
| + | = Additional Information = |
| + | An Ortho-diagonal quadrilateral i.e., any quadrilateral whose diagonals are perpendicular to each other possesses certain interesting properties. This article [http://azimpremjiuniversity.edu.in/SitePages/pdf/quadrilaterals-with-perpendicular-diagonals.pdf 'Quadrilaterals with Perpendicular Diagonals'] by Shailesh Shirali (published in ''<nowiki/>'At Right Angles''' | Vol. 6, No. 2, August 2017) discusses a few of them. |
| + | |
| + | ''<nowiki/>'' |
| + | |
| + | === Learning Objectives === |
| * Introduction to polygons | | * Introduction to polygons |
| * The meaning of quadrilateral | | * The meaning of quadrilateral |
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| * Introduction to cyclic quadrilaterals | | * Introduction to cyclic quadrilaterals |
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− | ==Concept # 1. Introduction to Quadrilaterals== | + | === Teaching Outlines === |
| + | ====Concept 1: Introduction to Quadrilaterals==== |
| + | The word quadrilateral comes from two latin words "quadri" which means a "variant of 4" and 'latera' which means 'side'. A quadrilateral is a 4 sided figure with 4 sides, 4 angles and 4 vertices. |
| + | |
| + | This topic has its basics in polygons. Try to elicit live examples for quadrilaterals from within classroom, starting from the shape of a textbook. Show the vertices of a rectangular page. Mark three sets of four points on the blackboard, one set being collinear and other non-collinear. Call students to join the points of each set of points. This activity will introduce them to the concept of quadrilateral. |
| + | |
| + | ===== Activities # ===== |
| | | |
− | ===Learning objectives=== | + | ====== [[Introduction to quadrilaterals]] ====== |
− | * Students will be able to define quadrilaterals.
| + | This activity explores formation of a quadrilateral and elements related with the shape. |
− | * Students will be able to identify quadrilaterals.
| |
| | | |
− | ===Notes for teachers=== | + | ======[[Identifying quadrilaterals]]====== |
− | # This topic has its basics in polygons. Try to elicit live examples for quadrilaterals from within classroom, starting from the shape of a textbook. Show the vertices of a rectangular page. Mark three sets of four points on the blackboard, one set being collinear and other non-collinear. Call students to join the points of each set of points. This activity will introduce them to the concept of quadrilateral.
| + | This is an exploration into quadrilaterals. A specific type of quadrilateral can be selected with the checkboxes, and any blue dots on each quadrilateral can be dragged to change the shape. |
− | # The word quadrilateral comes from two latin words "quadri" which means a "variant of 4" and 'latera' which means 'side'. A quadrilateral is a 4 sided figure with 4 sides, 4 angles and 4 vertices.
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| | | |
− | ===Activity No # 1.Identifying quadrilaterals.=== | + | ====== Concept 3: Types of quadrilaterals ====== |
− | *Materials/ Resources needed
| + | Quadrilaterals are of different types. Grouping is made based on the four angle measures and/or sides. Each type is recognized with its characteristic properties. The types include regular, non-regular; convex, concave; parallelogram (square, rectangle, rhombus,) and non-parallelograms (trapezium and kite). |
− | Flash cards of different plane figures , blank paper, Scale, colored pencils
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− | *Estimated time
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− | 40 minutes
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− | *Prerequisites/Instructions, if any
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− | # The students should have prior knowledge of sides, angles and vertices.
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− | # Student should be able to recognize 4 sided polygons.
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− | *Multimedia resources: Laptop, geogebra file, projector and a pointer.
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− | *Website interactives/ links/ / Geogebra Applets
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− | Geogebra activities on Quadrilateral [http://www.geogebratube.org/material/show/id/3785 click here]
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− | *Process:
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− | # Keep ready flash cards of different plane figures.
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− | # Can give 1 set to a group of 5 children.
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− | # Ask students to observe the plane figures individually.
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− | # Let them use their own sorting method and sort the figures by making columns and drawing on a sheet of paper.
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− | # Go around and have each student tell you how they sorted. Write the different ways on the board. For duplicates, begin making tallies.
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− | # Refer to the list (some students should have mentioned that they sorted by the number of sides). Point out the number of sides/angles as the sorting rule.
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− | # Tell students that all of the figures with four sides and four angles belong to the same family. That family is the “Quadrilateral” family.
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− | # Explain that quadrilaterals is a family of 4 sided plane figures.
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− | # Also tell them about the differnt types of quadrilaterals.
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− | # Have the students to fold their paper in half and to draw a line down the middle of the paper. On one half of the paper, write the word “Quadrilaterals”. On the other half of the paper write the words “Not Quadrilaterals.” Let them sort with this given rule.
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− | # Have students draw each of shapes on the correct side of the paper.
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− | # When all of the students have drawn on their papers, ask them if they can recognise any of the special quadrilaterals and if they can name them.
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− | # Next the teacher can show them the geogebra file and formally introduce the naming of quadrilaterals.
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− | *Developmental Questions:
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− | # What type of figures are these ?
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− | # What are plane figures ?
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− | # Name the parts of the figures ?
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− | # What are polygons ?
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− | # Are all figures the same ?
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− | # What differences do you notice in the figures.
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− | # By which parameter are you sorting ?
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− | *Evaluation
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− | # What do all of your quadrilaterals have in common?<br>
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− | # Why did you put the hexagon on this half of the page?
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− | # Can you combine simple shapes to make different quadrilaterals?
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− | *Question Corner
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− | Colour the quadrilaterals in this home and try naming them.
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− | [[File:eee.png]]
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| | | |
− | ==Concept # 2.Properties of quadrilaterals== | + | ===== Activities # ===== |
− | ===Learning objectives=== | |
− | # There are certain characteristic properties by which a quadrilateral is identified.
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− | # A quadrilateral is a plane closed figure having 4 sides and 4 angles.
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− | # The sum of all 4 interior angles of any quadrilateral always equals to 360 degrees.This is called interior angle sum property of a quadrilateral.
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− | # The sum of all 4 exterior angles of any quadrilateral equals 360 degrees. This is called exterior angle sum property of the quadrilteral.
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− | # The opposite angles of any quadrilateral are supplementary.
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− | # If any 3 angles of a quadrilateral are known the fourth angle can be found using angle sum property.
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| | | |
− | ===Notes for teachers=== | + | ====== [[Quadrilaterals "I have - Who has?"|"I have - Who has ?"]]====== |
| + | A hands on group activity that helps in identifying and building vocabulary related to quadrilaterals. |
| | | |
− | ===Activity No # 1. Angle sum property of a quadrilateral. === | + | ====== [[Venn diagrams of quadrilaterals]] ====== |
− | {| style="height:10px; float:right; align:center;"
| + | Classifying quadrilaterals based on their properties and identifying related quadrilaterals with ven-diagram. |
− | |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
| + | |
− | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
| + | ==== Concept 2: Properties of quadrilaterals ==== |
− | |}
| + | There are certain characteristic properties by which a quadrilateral is identified. A quadrilateral is a plane closed figure having 4 sides and 4 angles. The sum of all 4 interior angles of any quadrilateral always equals to 360 degrees. This is called the interior angle sum property of a quadrilateral. The sum of all 4 exterior angles of any quadrilateral equals 360 degrees. This is called the exterior angle sum property of the quadrilateral. If any 3 angles of a quadrilateral are known the fourth angle can be found using the angle sum property. |
− | *Estimated Time : 40 minutes.
| + | |
− | *Materials/ Resources needed : colour papers, scale , compass, pencil and scissors.
| + | ===== Activities # ===== |
− | *Prerequisites/Instructions, if any
| + | |
− | # The students should have the knowledge of constructing quadrilaterals.
| + | ====== [[Angle sum property of a quadrilateral]]====== |
− | # They should have the skill of drawing and measuring angles.
| + | Showing the sum of angles of quadrilaterals by placing the angles of the quadrilateral adjacent to each other with a hand on activity. |
− | *Multimedia resources
| + | |
− | *Website interactives/ links/ / Geogebra Applets:
| + | ====== [[Sum of the interior angles of a quadrilateral]] ====== |
− | This activity has been taken from the website :http://mathematicsvillage.blogspot.in/search/label/Activity
| + | The sum of the measures of the angles in any quadrilateral is 4 right angles. |
| + | |
| + | ====== [[Sum of angles at point of intersection of diagonals in a quadrilateral]] ====== |
| + | A diagonal is the line segment that joins a vertex of a polygon to any of its non-adjacent vertices. These two diagonals of a quadrilateral form angle, this activity explores the property of these angles. |
| + | |
| + | ====== [[Area of a quadrilateral]] ====== |
| + | A diagonal divides a quadrilateral into 2 triangles. Understanding the area of a quadrilateral in terms of triangles is done with this activity. |
| + | |
| + | ==== [[Properties of Parallelogram]] ==== |
| + | |
| + | ==== [[Parallelogram on same base and between same parallels have equal area]] ==== |
| + | |
| + | ==== [[Mid point of sides of a Quadrilateral forms parallelogram]] ==== |
| + | |
| + | ==== Concept 3 : Properties of Rhombus ==== |
| + | A rhombus is a quadrilateral with all sides of equal length. The opposite angles of a rhombus are equal and its diagonals are perpendicular bisectors of one another. Since the opposite sides and opposite angles of a rhombus have the same measures, it is also a parallelogram. Hence, a rhombus has all properties of a parallelogram and also that of a kite. [[Properties of Rhombus|(click here)]] |
| + | |
| + | ==== Concept 3: Construction of quadrilaterals ==== |
| + | |
| + | ==== Concept 4: Square ==== |
| + | A square is a 4-sided regular polygon with all sides equal and all internal angles 90. A square is the only regular quadrilateral. It can also be considered as a special rectangle with both adjacent sides equal. Its opposite sides are parallel. The diagonals are congruent and bisect each other at right angles. The diagonals bisect the opposite angles. Each diagonal divides the square into two congruent isosceles right angled triangles. A square can be inscribed in a circle. A circle can be inscribed in a square touching all its sides. |
| + | |
| + | [[Introduction to a square and its properties|Click here : Introduction to a square and its properties]] |
| + | |
| + | Four sides of a square are equal. Adjacent sides are at right angles with each other. The area of a square is side x side sq units. The perimeter of a square is the length of distance around its boundary which is 4 times its side. |
| + | |
| + | ====== [[Pull me to see if I still remain a square]] ====== |
| + | |
| + | ====== [[Area of a square]] ====== |
| + | [[Constructing a square|'''Constructing a square''']] |
| + | |
| + | ==== Concept 5: Cyclic Quadrilaterals ==== |
| + | |
| + | ==== [[Cyclic Quadrilaterals]] ==== |
| + | |
| + | ====== [[Theorems on cyclic quadrilaterals]] ====== |
| + | |
| + | ==== Concept : Kite ==== |
| + | A kite has two pairs of congruent sides. Its diagonals intersect at right angles. The sum of its four sides would be its perimeter. Its area is given by the formula <math>(1/2) (product of its diagnols)</math> |
| + | |
| + | ====== [[A Kite and its properties]] ====== |
| + | |
| + | ====== [[Construction of a kite]] ====== |
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− | [[File:Quadrilateral 1.JPG|200px]] | + | ====== [[Deriving formula for area of a kite]] ====== |
− | [[File:qua 2.JPG|200px]]
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− | [[File:qua 3.JPG|200px]]
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− | [[File:qua 4.JPG|200px]]
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| | | |
| + | ==== Concept : Trapezium ==== |
| | | |
| + | ======[[A Trapezium and its properties]]====== |
| | | |
− | *Process:
| + | ====== [[Deriving formula for area of a trapezium]] ====== |
− | # Draw a Quadrilateral ABCD on colour chart Sheet .
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− | # Cut such four Quadrilaterals on four different sheets.
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− | # Mark <A as <1 , <B as <2 , <C as <3 and <D as <4 on each quadrilateral as shown in fig .
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− | # Arrange all four angles of quadrilateral one from each colour at one point.
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− | # What you observe ?
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− | # It forms a complete angle i.e 360 degrees.
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− | # This shows that sum of all angles of quadrilateral is 360 degrees.
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− | *Developmental Questions:
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− | # What is a quadrilateral ?
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− | # How many angles does a quadrilateral have ?
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− | # What is the sum of 4 angles of the quadrilateral according to your findings.
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− | *Evaluation:
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− | # What would be the sum of opposite angles of a quadrilateral ?
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− | *Question Corner:
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− | # What can you say about the four angles in a regular quadrilateral ? Give an example for regular quadrilateral.
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− | # Try proving this property in case of concave quadrilaterals as well.
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| | | |
− | ===Activity No # 2. "I have - Who has ?"=== | + | ====== [[Construction of Trapezium]] ====== |
− | {| style="height:10px; float:right; align:center;"
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− | |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
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− | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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− | |}
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− | *Estimated Time : 40 minutes
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− | *Materials/ Resources needed :
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− | # Flash cards written with properties of different quadrilaterals,
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− | # Flash cards with figures of different quadrilaterals.
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− | # Flash cards with names of different quadrilaterals.
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− | *Prerequisites/Instructions, if any
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− | # The students should know the properties of different quadrilaterals.
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− | # This can be done as a revision activity for properties of quadrilaterals.
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− | # The students should know the types of quadrilaterals.
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− | *Multimedia resources
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− | *Website interactives/ links/ / Geogebra Applets :
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− | This activity has been shared by Shashidhar Savadi of Hassan from the website http://www.geogebra.org/en/upload/files/MSP/HarryMarshall/Investigating_Quadrilaterals.pdf
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− | *Process:
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− | # Students are divided into six groups. Each group is given 3 cards which have a figure of the shape, definition and a vocabulary word cards.
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− | # However, the word, figure and definition on each card do not go together. A student from the first group says, “Who has a quadrilateral with opposite sides congruent and parallel and all right angles?” Each group then looks to see if they have the card with the vocabulary word that matches the definition and also for the card that has the drawn figure.
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− | # Each definition is read twice so that all students have a chance to fully grasp the meaning. Ideally, a student from the group with the shape that has been defined then raises his/her hand to answer; in this case, the correct response is, “I have a rectangle”. and drawing of the rectangle.
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− | # The game continues until all cards are read and matched.
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− | # This activity allows a teacher to discuss misconceptions and non-examples when students answer incorrectly.
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− | *Developmental Questions:
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− | # What does the property say about angles ? number of sides ? and diagnols ?
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− | # Recall quadrilateral which shares some of the mentioned properties ?
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− | *Evaluation:
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− | # As the properties of each quadrilateral are read out through the course of the activity the teacher can cross question "why do you think it is ........... quarilateral only why not ................ and so on thus eliciting the reasoning from students.
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− | *Question Corner:
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− | # Make a list of types of quadrilaterals and their properties.
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− | # Draw venn diagram of quadrilaterals taking properties of quadrilatrals as set elements.
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| | | |
− | ==Concept #3. Types of quadrilaterals== | + | ====== [[Construct an isosceles trapezium and study its properties]] ====== |
− | ===Learning objectives=== | + | A trapezium in which non-parallel sides are equal is called as an Isosceles Trapezium. The diagonals of an isosceles trapezium are equal. An isosceles trapezium has one line of reflection symmetry. This line connects the midpoints of the two bases. Both pairs of base angles of an isosceles trapezium are congruent. Pairs of angles in an isosceles trapezium that do not share a base are supplementary. The area of an isosceles trapezium is given by<math>(a+b)/2 x h</math> , where a and b are the lengths of the parallel sides and h is the distance (height) between the parallel sides. |
− | # Quadrilaterals are of different types.
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− | # Grouping is made based on the four angle measures and/or sides.
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− | # Each type is recognised with its characteristic properties.
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− | # The types include regular, non-regular; convex, concave; parallelogram (square, rectangle, rhombus,) and non-parallelograms (trapezium and kite).
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− | ===Notes for teachers===
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− | # This activity can be done after teaching the students about different types of quadrilaterals and their properties.
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− | # This will help clarify similarities and differences between different quadrilaterals.
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− | # Can do in group of 3 students to enable discussions.
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− | ===Activity No # 1.Venn diagrams of quadrilaterals ===
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− | {| style="height:10px; float:right; align:center;"
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− | |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
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− | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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− | |}
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− | *Estimated Time : 40 minutes.
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− | *Materials/ Resources needed:
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− | Paper, pencil, eraser.
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− | *Prerequisites/Instructions, if any
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− | # The students should have been introduced to quadrilaterals, their properties and types.
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− | *Multimedia resources
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− | *Website interactives/ links/ / Geogebra Applets:
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− | This activity has been taken from the website :https://pantherfile.uwm.edu/ancel/www/MATH%20277%20FALL%202013/LESSONS/UNIT%203/277.16.pdf
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− | *Process:
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− | [[File:Types of quadrilaterals activity.jpeg|400px]]
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| + | ===== Solved problems/ key questions (earlier was hints for problems).[edit | edit source] ===== |
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− | # There are 6 regions in the above venn diagram.
| + | === Projects (can include math lab/ science lab/ language lab)[edit | edit source] === |
− | # The teacher can ease the activity by having an initial round of oral discussion in the previous classes such as every parallelogram is a rectangle if and only if it has ........<br>
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− | # Every quadrilateral is a kite if it has .........
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− | # Rectangles, squares and rhombus are all .........
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− | # A square is a special type of ..............
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− | # When the students are fairly comfortable, the teacher can ask the students to group the different types of quadrilaterals in the approprriate places of the venn diagram as per their properties.
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− | # After all the groups complete the activity the teacher can ask them to present on the black board and clarify.
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− | *Developmental Questions:
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− | # Ask the students to discuss properties among the group and do the venn diagram.
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− | *Evaluation:
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− | # Name the universal set here.
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− | # Name all the subsets.
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− | *Question Corner
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− | # Draw a flow chart of types of quadrilaterals.
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− | = Fun Corner = | + | === Assessments - question banks, formative assessment activities and summative assessment activities[edit | edit source] === |
− | * Math is fun [[http://www.mathsisfun.com/quadrilaterals.html]]
| + | [[Category:Class 9]] |
| + | [[Category:Quadrilaterals]] |