Our next unit this year is geometry. In this unit we will be investigating the attributes and properties of 2-d and 3-d shapes. The important ideas in the geometry unit are:

This unit will have a major focus on the ability to communicate using math language. Students will be expected to use correct mathematical language for shapes and their properties. Ask your child to tell you about the geometric language that they are learning at school each day.

The following websites will also be helpful for your child to explore.

Math Play - Geometry Geoboard game National Library of Virtual Manipulatives (geometry manipulatives)

- Shapes can be described by their attributes, including number of vertices, sides, faces, edges, angle sizes, number of parallel lines, etc.
- Many of the attributes of 2-d shapes also apply to 3-d shapes
- 2-d shapes can be combined to make larger shapes
- 3-d shapes can be identified by the 2-d shapes that make their faces

This unit will have a major focus on the ability to communicate using math language. Students will be expected to use correct mathematical language for shapes and their properties. Ask your child to tell you about the geometric language that they are learning at school each day.

The following websites will also be helpful for your child to explore.

Math Play - Geometry Geoboard game National Library of Virtual Manipulatives (geometry manipulatives)

## Grade 3The focus will be on identifying and comparing various polygons such as triangles, quadrilaterals, pentagons and hexagons. They will be sorting polygons according to their geometric properties such as number and length of sides, number of right angles, number of parallel sides, etc. This year students will also be introduced to comparing angles to a right angle. We will also be investigating the different types of quadrilaterals.
In 3-d geometry the focus is on identifying and sorting prisms and pyramids by the shapes of their bases. |
## Grade 4Grade 4s look at polygons and will also focus on identifying and sorting quadrilaterals. They will need to be able to recognize angles as greater or less than a right angle, or half a right angle and recognize these angles as 45 or 90 degrees.
Investigations in 3-d geometry including sorting prisms and pyramids and in construction of 3-d shapes from nets and from drawings. |