Properties of Parallelogram

Objectives
Being able to deduce the properties of parallelogram.

Estimated Time
40 minutes

Prerequisites/Instructions, prior preparations, if any
knowledge about parallel lines, adjacent angles, supplementary angles, diagonals, quadrilaterals,

Materials/ Resources needed
Digital : Click her to open the file

Non-digital : Paper, pencil, ruler, compass, protractor

Process (How to do the activity)
Procedure:
 * 1) The teacher can use this geogebra file to introduce parallelograms to students.
 * 2) Move the vertices A or B or D and observe different parallelograms formed like square, rectangle and rhombus.
 * 3) Bring their attention to measures of sides, angles and diagonals.
 * 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 at the end of the activity
Go back to the page - click here
 * 1) Are square, rectangle and rhombus parallelograms ?
 * 2) What are parallelograms ?
 * 3) How many pairs of parallel lines does a parallelogram have
 * 4) Is kite a parallelogram ?