**2-D shapes - fifth and sixth class **

Content for fifth class

*The child should be enabled to*

- Make informal deductions about 2-D shapes and their properties
- Use angle and line properties to classify and describe triangles and quadrilaterals.

*Name, explore and compare a wide variety of three and four-sided figures in terms of size and number of angles, type and number of sides e.g. trapezium, scalene triangle and regular hexagon?* - Identify the properties of the circle?

*Explore and compare circles of various unit diameters?*

Measure and identify the relationship of diameter to radius?

Examine area by counting square units? - Construct a circle of given radius or diameter?

*Draw using a compass.* - Tessellate combinations of 2-D shapes
- Classify 2-D shapes according to their lines of symmetry.

*Explore, compare and record lines of symmetry in 2-D shapes?* - Use 2-D shapes and properties to solve problems.

*Make a specified shape with Tangram shapes.*

Content for sixth class

*The child should be enabled to*

- Make informal deductions about 2-D shapes and their properties
- Use angle and line properties to classify and describe triangles and quadrilaterals
- Construct triangles from given sides or angles.

*Complete the construction of triangles, given two sides and the angle between them or given two angles and the line between them.* - Identify the properties of the circle?

*Relate the diameter of a circle to its circumference by measurement.*

Measure the circumference of a circle or object such as a rolling-pin or wheel e.g. using a piece of string. - Construct a circle of given radius or diameter?
- Tessellate combinations of 2-D shapes
- Construct a circle of given radius or diameter?
- Classify 2-D shapes according to their lines of symmetry
- Plot simple co-ordinates and apply where appropriate.

*Use geoboards and squared paper.* - Use 2-D shapes and properties to solve problems.