In this unit, the students will:
- Investigate the relationships between the sides of a polygon and its angles
- Investigate the relationships between vertices of a polygon
- Describe properties of regular and irregular polygons
- Sort Polygons according to different sorting rules
- Translate, rotate, and reflect 2D shapes
- Recognize various angles in surroundings
You can encourage your child to look for geometric shapes and objects around the home and neighbourhood, and talk about them. Here are some suggestions for activities that you can do at home:
- Look for geometric shapes in buildings and street signs. For example, a stop sign is the shape of an octagon, and a yield sign is the shape of a triangle.
- Look around the house for geometric shapes. Talk about the shapes you find. As you do, look closely at the corners and sides of the shapes. Count the corners and sides with your child.
- Look for 3-D objects around your home, such as a fridge, stove, table legs, and so on. If possible, ask your child to count the number of corners and edges. Talk about how the object’s shape is related to its purpose.
- Look through magazines with your child to find as many different 2-D shapes and 3-D objects as you can find.
So far we’ve learned how to describe and compare shapes and objects using words like vertices, edges, faces, and length!