# Paper Folding Activity- Triangles and polygons

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### Process (How to do the activity)

1. Exploring vertically opposite, exterior angles – 2 periods
2. Quadrilateral – 4 periods
3. Angle sum property proof (paper folding and geogebra verification). (3 periods)
4. Explore the properties of triangles and quadrilaterals with paper folding/ tracing.. Measurement of real object surfaces (4 periods)
5. Explore congruency with paper folding and rotating (demonstrate using Geogebra) – (4 periods)

If time is short some can move to second term

1. Measurement of area (2 periods)
2. Introduce Euclid's axioms with paper folding activities, follow it up with Geogebra (6 periods)
3. Introduce constructions (if possible in Term I; if not move to Term II)
• Use screenshots from Geogebra for practice problems.
• Emphasise measurements and formal methods of writing
• Postpone logical proof until second term. After they learn to construct
• All paper folding/ cutting/ measurement activities are FA activities.
• Follow up with multi-level worksheets.
• Different children must get different worksheets