Planning and Activities
Day 1
Revise symmetry. Children discuss and identify lines of symmetry in regular and irregular shapes.
Group Activities: T with Y3
Y3 -- Identify whether shapes are symmetrical. Draw the lines of symmetry on 2-D shapes. -- Draw one half of a shape for a partner to complete symmetrically. Begin to explore shapes with two lines of symmetry.
Y4 --Identify whether shapes are symmetrical. Draw the lines of symmetry on 2-D shapes. -- Identify lines of symmetry in regular and irregular 2-D shapes.
Day 2
Use the ‘Hamilton clock’ as basis for modelling quarter and half turns, clockwise and anti-clockwise.
Further Teaching with Y4
Children discuss and compare sizes of five displayed angles, then classify as right, acute or obtuse.
Group Activities: T with Y4
Y3 -- Follow and give instructions to practise making quarter, half and three-quarter turns.
Y4 -- Recognise and compare acute and obtuse angles and right angles.
Day 3
Explore images and patterns turned through successive right angles.
Further Teaching with Y4
Revise names and properties of the different families of triangles.
Group Activities: T with Y3
Y3 -- Create patterns by rotating shapes through successive right angles.
Y4 -- Explore the angle properties of different types of triangles.
Day 4
Model using IWB set square to find angles greater or less than 90°; use vocabulary acute and obtuse.
Group Activities: T with Y3
Y3 -- Find examples of different types of angle in the classroom and around the school. -- Classify angles <90° as ‘acute’ and >90° as ‘obtuse’.
Y4 -- Investigate the angle properties of quadrilaterals.
Day 5
Model parallel and perpendicular lines using examples around the room.
Further Teaching with Y4
Explore properties of quadrilaterals; name them. Sort into a Venn diagram.
Group Activities: T with Y3
Y3 Use the ‘My Square, Not Yours!’ in-depth problem-solving investigation below as today’s group activity. Or, use this activity
-- Sort shapes into a Venn diagram based on their properties
Y4 Use the ‘Rabbit Run’ in-depth problem-solving investigation from NRICH as today’s group activity. Or, use this activity:
-- Compare and classify quadrilaterals, based on various properties.