**Unit 3 – How We Express Ourselves. **

**To support concept “Form”, grade 4 students will learn about Measurement and Shape and Space. **

**Measurement:**

- Perimeter and area of 2D figures(Form)

- Find the area, perimeter and unknown sides of squares and rectangles
- Find the area and perimeter of composite figures made from squares and rectangles

- Volume of cube and cuboids

- Determine the volume of cubes and cuboids by counting cubic units that fill the shapes
- Measure the volume of cubes and cuboids in cm
^{3}and m^{3} **Derive a formula to find the volume of cubes and cuboids and use it to solve problems*- Find the surface area of a cube or a cuboids
- Solve problems related to cubes and cuboids.

**Shape and Space:(Function)**

- Regular Polygons

- Name and identify regular polygon (equilateral triangle, square, pentagon, hexagon, and octagon)
- Describe some properties of regular polygon

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