Build a Paper Protractor
Fold and mark a paper circle to create your own protractor and measure angles around the classroom.
Materials: Paper, scale, pencil
Activities that turn abstract chapters into something real. Each one needs only simple materials and 20 to 40 minutes.
Fold and mark a paper circle to create your own protractor and measure angles around the classroom.
Materials: Paper, scale, pencil
Draw squares on each side of a right triangle and count unit squares to verify a² + b² = c².
Materials: Graph paper, colours
Model expressions like (x + 2)(x + 3) using tiles and discover identities visually.
Materials: Cardboard cut-outs
Use angle of elevation and tan θ to estimate the height of a building — real applications of trigonometry.
Materials: Measuring tape, clinometer
Record 100 trials and compare experimental probability with theoretical values.
Materials: Two dice, a coin
Create rangoli-style patterns and identify lines of symmetry and rotational order.
Materials: Colour paper, scissors