Difference between revisions of "Introduction to quadrilaterals"

From Karnataka Open Educational Resources
Jump to navigation Jump to search
(Created page with "===Name of the activity=== Brief blurb describing what the activity. If this has been borrowed from some external web site (for example, a non OER or OER site which had this...")
 
Line 1: Line 1:
−
===Name of the activity===
 
−
Brief blurb describing what the activity.  If this has been borrowed from some external web site (for example, a non OER or OER site which had this idea and based on which the activity was developed)
 
−
 
 
=== Objectives ===
 
=== Objectives ===
−
Content objectives  - what content areas
+
* To make quadrilateral
−
 
+
* Measure sides – segment lengths
−
Skill objectives - what specific skills
+
* Measure interior angles and find their sum
−
 
+
* Measure length of diagonals and angle between diagonals
−
Classroom objectives - to demo peer learning, to make a classroom resource, etc -
 
−
 
 
−
All these kinds of objectives need not be there for every activity.  And no need to list them as different headings.  This is only for our reference when we are developing activities.
 
  
 
===Estimated Time===
 
===Estimated Time===
 +
30 minutes
  
 
=== Prerequisites/Instructions, prior preparations, if any ===
 
=== Prerequisites/Instructions, prior preparations, if any ===
 +
Prior knowledge of point, lines, angles, intersecting lines, vertically opposite angles
  
 
===Materials/ Resources needed===
 
===Materials/ Resources needed===
 +
* Digital : Computer, geogebra application, projector.
 +
* Non digital : worksheet and pencil.
 +
* Geogebra files : '[https://ggbm.at/hy2gd2v8 Introduction to quadrilaterals.ggb]'
 +
 
===Process (How to do the activity)===
 
===Process (How to do the activity)===
−
How to do the different steps of the activity?
+
* What  is a quadrilateral? How many line segments are required for a  quadrilateral. How many vertices in a quadrilateral? How many  interior angles ?
−
 
+
* How  many lines can be drawn such that they join opposite vertices in a  quadrilateral?What are these lines called?
−
What kinds of questions you can ask for that activity
+
* Diagonals  divide the quadrilateral into which shape? How many triangles are  formed?
−
 
+
* Do  the two lines intersect with each other? At the point of  intersection how many angles are formed?Do you notice any equal  angles? What kinds of angle pairs are formed at the point of  intersection?
−
What are the student follow-up activities/ questions you can give?
+
* Note  the angle measures at the diagonals. Calculate the sum of these  angles. Analyze the sum of angles measure at the point of  intersection.
−
 
+
* Draw  different quadrilaterals and to measure the angles at the point of intersection,calculate the sum of these angles.
−
Categories:  (Subject) (Topic) (Sub-concept/topic) (Class 6) (Resource format)
+
{| class="wikitable"
−
 
+
|Quadrilateral
−
Example - (Mathematics) (Triangle) (Area) (Perimeter) (Class 6) (Class 8) (Geogebra) (Video)
+
|Side1
 +
|Side2
 +
|Side3
 +
|Side4
 +
|Angle1
 +
|Angle2
 +
|Angle3
 +
|Angle4
 +
|Angle 1+Angle 2+ Angle3 + Angle 4
 +
|What do you observe about angles around diagonal
 +
|-
 +
|Q 1
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
|Q 2
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
|Q 3
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
|Q 4
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|
 +
|}

Revision as of 09:59, 16 April 2019

Objectives

  • To make quadrilateral
  • Measure sides – segment lengths
  • Measure interior angles and find their sum
  • Measure length of diagonals and angle between diagonals

Estimated Time

30 minutes

Prerequisites/Instructions, prior preparations, if any

Prior knowledge of point, lines, angles, intersecting lines, vertically opposite angles

Materials/ Resources needed

Process (How to do the activity)

  • What is a quadrilateral? How many line segments are required for a quadrilateral. How many vertices in a quadrilateral? How many interior angles ?
  • How many lines can be drawn such that they join opposite vertices in a quadrilateral?What are these lines called?
  • Diagonals divide the quadrilateral into which shape? How many triangles are formed?
  • Do the two lines intersect with each other? At the point of intersection how many angles are formed?Do you notice any equal angles? What kinds of angle pairs are formed at the point of intersection?
  • Note the angle measures at the diagonals. Calculate the sum of these angles. Analyze the sum of angles measure at the point of intersection.
  • Draw different quadrilaterals and to measure the angles at the point of intersection,calculate the sum of these angles.
Quadrilateral Side1 Side2 Side3 Side4 Angle1 Angle2 Angle3 Angle4 Angle 1+Angle 2+ Angle3 + Angle 4 What do you observe about angles around diagonal
Q 1
Q 2
Q 3
Q 4
Retrieved from "https://karnatakaeducation.org.in/KOER/en/index.php?title=Introduction_to_quadrilaterals&oldid=30581"