Lesson Planning of Geometry Box & Its Tools
Subject Mathematics
Grade 4^{th}
Students` Learning Outcomes
 Use instruments of geometry box (pencil, straight edge / ruler, setsquares, divider, compass, scale, and protractor).
Information for Teachers
No. 
Tools 
Uses 
1 
Protractor 
This is a protractor. It is used to measure angles.
It has the shape of half of a circle; therefore it only measures angles up to 180°. It has two scales: each scale from 0° to 180° one way to the other way.
One is lower scale (right to left) and other is upper scale (from left to right).
2
Divider
A divider, also known as a measuring compass, is a mathematical instrument used to measure the length of irregular lines and distances on maps or charts.
3
SetSquares
Setsquares are useful for drawing parallel lines and perpendicular lines.
4
Compass
A device known as a compass (or pair of compasses) is used by mathematicians and craftsmen in geometry to draw a circle or an arc.
5
Scale/Ruler
Scale / Ruler are used to measure length of a straight line. It has centimeter, millimetre, and inches on it.
 During this lesson the teacher should also consult with textbook wherein and whenever it is required.
Material / Resources
Writing board, chalk/marker, duster, geometry box, textbook
Introduction
 Divide the class into proper groups.
 Ask them to open their geometry boxes and guess about its usage (Time limit 10 minutes)
 Take feedback of each group and then introduce the correct use, write the name and one sentence for each instrument on board.
Development
Activity 1

 Tell the students that today we discussed usage of all tools in a geometry box.
 Recap the names and uses of all the instruments of geometry with students.
Assessment
Question, Answer Session:
 How many instruments are in geometry box?
 How we use divider?
 Up to how many degree angle can we make or measure with protractor?
Follow up
 Ask students to draw circle, parallel lines, triangle with the help of compass and setsquares.