Difference between revisions of "Parallelograms"

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Revision as of 13:00, 3 January 2014

The Story of Mathematics

Philosophy of Mathematics

Teaching of Mathematics

Curriculum and Syllabus

Topics in School Mathematics

Textbooks

Question Bank

While creating a resource page, please click here for a resource creation checklist.

Concept Map

Error: Mind Map file parallelograms.mm not found


Textbook

To add textbook links, please follow these instructions to: (Click to create the subpage)

Additional Information

Useful websites

  1. http://library.thinkquest.org/28586/1024x768x24/05_Parallelograms/00_intro.html

This is a good website to introduce parallelograms.

Reference Books

Teaching Outlines

Concept # 1. Introduction to parallelograms

Learning objectives

  1. A 4-sided flat shape with straight sides where opposite sides are parallel.
  2. Also opposite sides are equal in length, and opposite angles are equal.
  3. Squares, Rectangles and Rhombuses are all Parallelograms.
  4. Properties of a parallelogram are :

a. Opposite sides parallel
b. Opposite sides equal
c. Diagonals bisect each other
d. Opposite angles congruent
e. Consecutive angles supplementary.

Notes for teachers

Activity No # 1. Introducing parallelograms

  • Estimated Time : 40 minutes.
  • Materials/ Resources needed:

Laptop, geogebra file, projector and a pointer.

  • Prerequisites/Instructions, if any:
  1. The students should know sides, parallel lines, diagnols and angles.
  2. They should know naming basic figures like square, rectangle and rhombus.
  • Multimedia resources: Laptop
  • Website interactives/ links/ / Geogebra Applets
  • Process:
  1. The teacher can use this geogebra file to introduce parallelograms to students.
  2. She can move the vertices A or B or c and observe different parallelograms formed like square, rectangle and rhombus.
  3. Bring their attention to measures of sides, angles and diagnols.
  • Developmental Questions:
  1. Can you identify the figure ?
  2. How many sides does this figure have ?
  3. What do we call a figure with 4 sides ?
  4. Are all 4 sides equal ?
  5. What are parallel lines ?
  6. Identify the 2 sets of parallel lines.
  7. Spell out the differences between the figures formed with respect to sides, angles and diagnols.
  8. What common features do you observe in all figures/shapes formed ?
  • Evaluation:
  1. What are parallelograms ?
  2. Are square, rectangle and rhombus parallelograms ?
  3. How many pairs of parallel lines does a parallelogram have ?
  • Question Corner:
  1. Are all parallelograms quadrilaterals ?
  2. Is kite a parallelogram ?

Activity No #

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources
  • Website interactives/ links/ / Geogebra Applets
  • Process/ Developmental Questions
  • Evaluation
  • Question Corner

Concept # 2. Construction of parallelograms

Learning objectives

Notes for teachers

Activity No #

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources
  • Website interactives/ links/ / Geogebra Applets
  • Process/ Developmental Questions
  • Evaluation
  • Question Corner

Activity No #

  • Estimated Time
  • Materials/ Resources needed
  • Prerequisites/Instructions, if any
  • Multimedia resources
  • Website interactives/ links/ / Geogebra Applets
  • Process/ Developmental Questions
  • Evaluation
  • Question Corner

Hints for difficult problems

Project Ideas

Math Fun

Usage

Create a new page and type {{subst:Math-Content}} to use this template

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