Lesson Planning of QUADRILATERAL
Subject Mathematics
Grade 4^{th}
Students` Learning Outcomes
 Construct squares and rectangles with sides of given measure using protractor, set squares and straightedge/ruler.
Information for Teachers
 Follow these steps to draw a rectangle of length 8 cm and width 3 cm.
 Step 1: Draw a line and mark two points 8 cm apart and Call these A and B.
 Step 2: Use setsquare or a protractor and draw right angles at A and B.
 Step 3: Use ruler and mark length of 3 cm on each of the right angles, and call the points C and D.
 Step 4: Join C and D to complete the rectangle ABCD.
 Follow w these steps to draw square of length 8 cm.
 Step 1: Draw a line and mark two points 8 cm apart and call them A and B.
 Step 2: Use setsquare or a protractor and draw right angles at A and B.
 Step 3: Use ruler and mark length of 8 cm on each of the right angles, and call these points as C and D.
 Step 4: Join C and D to complete the square ABCD.
 Quadrilaterals: A closed figure with four sides and sum of its interior angles is 360^{0.}
 A square: Have the following characteristics, as;
 All sides are of the same length.

Opposite sides are parallel.
 There are four right angles.
 Both diagonals are equal and perpendicular to each other.
 Rectangles: Parallelogram with four right angles.

Opposite sides are of the same length and parallel.
 There are four right angles.
 Adjacent angles are supplementary.
 Both diagonals are equal.
 Ask the students that: is this shape quadrilateral or not which includes, square, rectangle and a kite also?
 Is this shape quadrilateral (yes) or (not) the correct answer would be as; (Yes)
Material / Resources
Writing board, chalk/marker, duster, Geometry box, pencil, rubber, sharpener, textbook
Introduction
 Can anyone tell me that why do we use setsquare? Why do we use protractor?
 Do you remember how to draw an angle with protractor? As we did for triangles.
 Do you remember how to draw right angle with setsquare?
 Take their verbal feedback and then ask them to draw two right angles one with protractor and other by using setsquare. (Pair activity)
 Ask pairs to exchange their notebooks and check work.
 Then repeat the method once verbally.
Development
Activity 1
pair work

Sum up / Conclusion
 Squares and rectangles are quadrilateral.
 All the angles of squares and rectangles are right angles.
 All sides of square of same length.
Assessment
 Identify square and rectangle among the following pictures:
 What is difference between square and rectangle?
Follow up
 Encourage students to draw square and rectangles using different measurements.
 Ask students to solve question from textbook.