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Grade 3 Geometry Lesson Plan - comparing 2D shapes and 3D figures Investigating angles Investigating Angles in Regular Polygons Lesson Plan ~ Menu 1. 2. 3. 4. Minds On Action! Consolidation and Connection- Curriculum Integration Mind Map Next Steps Investigating Angles in Regular Polygons ~ Minds On Investigate the following questions through video: What are angles? Where do we see angles? What are the names of the different kinds of angles? (15 minutes) Investigating Angles in Regular Polygons ~ Minds On With a partner, think of as many different polygons as you can. (10 Minutes) When the class is ready, use this space to identify the polygons. Investigating Angles in Regular Polygons ~ Minds On Play the TVOKids game, Stacking Up! This game helps practice polygon identification (15 minutes) Investigating Angles in Regular Polygons ~ Action! With a partner, take the polygons from the previous page and identify the properties of 2 polygons, including the angle properties. Compare the 2 polygons using a Venn diagram. (Partner activity 20 minutes) Rhombus Square Investigating Angles in Regular Polygons ~ Action! Play the Guess the Polygon Game! (small group activity- 20 minutes) • Every student gets an index card • On each index card, the student has to identify specific properties of that shape, without saying the shape’s name • Students take turns and try to guess each others’ shapes based on clues- they track how many clues it took for them to guess the shape correctly Have a conversation after and talk about big ideas, such as: • A square is a special kind of rectangle, but a rectangle is not a square • Many polygons are also parallelograms Investigating Angles in Snowboarding~ Action! Play the TVOKids game, Snowboard Run! This game shows how angles can be represented by degree of rotation. Investigating Angles in Regular Polygons ~ Consolidate and Connect Use the Curriculum Integration Mind Map on the next page to connect the learning to other areas of the curriculum. Investigating Angles in Regular Polygons Consolidate and Connect ~ Curriculum Integration Mind Map The Arts: Music- with a partner come up with a song that compares 2 polygons with respect to their properties Math Extension: Data: Use the data from the photo lesson to construct a graph showing the prevalence of different angles in real life Media Arts: using a digital camera, go for a walk in your neighbourhood and take photographs of angles in real life examples Phys Ed: Make angles with your body by yourself and with a partner Angles in Polygons Technology: use powerpoint to make a venn diagram of different polygons and compare their angles Science: Build a blueprint for a structure with specific parameters based on polygons and angles Investigating Angles in Regular Polygons ~ Next Steps Look at angles that are found in 3D figures