Maths Year 6 Autumn Shape

Each unit has everything you need to teach a set of related skills and concepts.

2-D shapes (circles and quadrilaterals) (suggested as 2 days)

Planning and Activities

Day 1 Teaching
Pairs discuss how to explain the radius, circumference and diameter to someone with no diagram. Agree the definitions. Describe relationship of diameter and radius as a ratio (2 to 1, 2:1). We will explore whether there is a similar relationship between the circumference and diameter.
Group Activities
Use the ‘Ellipse in a Circle’ in-depth problem-solving investigation below as today’s group activity.
Or, use these activities:
-- Children draw circles, measure diameters and circumferences with string and work out ratio. Pi is introduced.

Day 2 Teaching
Children draw different quadrilaterals and describe them. Together identify their features then name the different types of quadrilateral. Classify these according to their properties.
Group Activities
-- Children make a range of quadrilaterals using art straws. Copy into books and identify features. Sort with sorting tree or Venn diagram.

You Will Need

  • Diagram with parts of a circle labelled
  • Compasses
  • Rulers
  • String
  • Internet access (PCs/laptops/tablets)
  • Art straws
  • ‘Quadrilateral sorting tree’ sheet (see resources)


Day 1
Investigating circle relationships.
Children interpret a table of data to try to discover any relationship between a circle’s circumference and its diameter.

Day 2
Identify and classify Quadrilaterals.
Discuss with partner what is possible and not possible in a quadrilateral. Write down reasoning with diagrams.

Mastery: Reasoning and Problem-Solving

  • Draw a circle and label the radius and diameter. Explain how you could find the diameter.
  • Use damp string to measure the circumference of a small plate. Now measure its diameter and calculate the circumference. How close was your damp string measurement?
  • Mystery quadrilaterals
    I have one pair of non-equal parallel sides. What am I?
    I have 2 pairs of equal sides, but no sides are parallel. 2 opposite angles are equal but not the other 2. What am I?

In-depth Investigation: Ellipse in a Circle
Children draw a circle and then use straight lines and angles to construct an ellipse within it.

Catch-up Learning

This unit has no separate Extra Support activities.