Parallel and perpendicular sides in polygons

Unit 10 – 2 weeks

Primary KS2 Year 3

The PowerPoint file contains slides you can use in the classroom to support each of the learning outcomes for this unit, listed below.

Geometry topics are not covered by the NCETM Primary Mastery Professional Development materials. Therefore, some slides for this unit have been additionally created to provide the high-level overview to address each learning outcome. However, they do not provide the level of detail seen in other units, so teachers will need to supplement slides with other high quality materials available to them. You should also refer to the national curriculum to ensure coverage. There are also links to the ready-to-progress criteria detailed in the DfE Primary Mathematics Guidance 2020.

Learning outcomes

# Title
1 Pupils make compound shapes by joining two polygons in different ways (same parts, different whole)
2 Pupils investigate different ways of composing and decomposing a polygon (same whole, different parts)
3 Pupils draw polygons on isometric paper
4 Pupils use geostrips to investigate quadrilaterals with and without parallel and perpendicular sides
5 Pupils make and draw compound shapes with and without parallel and perpendicular sides
6 Pupils learn to extend lines and sides to identify parallel and perpendicular lines
7 Pupils make and draw triangles on circular geoboards
8 Pupils make and draw quadrilaterals on circular geoboards
9 Pupils draw shapes with given properties on a range of geometric grids