National curriculum content
- Compare and classify geometric shapes, including quadrilaterals and triangles, based on their properties and sizes
- Identify acute and obtuse angles and compare and order angles up to two right angles by size
- Identify lines of symmetry in 2-D shapes presented in different orientations
- Complete a simple symmetric figure with respect to a specific line of symmetry
- Understand angles as turns
- Identify angles
- Compare and order angles
- Lines of symmetry
- Complete a symmetric figure
What we want children to know
- Know angles are a measure of a turn.
- Know that a right angle is a quarter turn, 2 right angles make a half-turn, 3 right angles make three-quarters of a turn and 4 right angles make a complete turn.
- Identify whether an angle is greater than or less than a right angle in shapes and turns, by measuring, comparing and reasoning in practical contexts.
- Learn that an acute angle is more than 0 degrees and less than 90 degrees, a right angle is exactly 90 degrees and an obtuse angle is more than 90 degrees but less than 180 degrees.
- Recognise, describe and draw 2-D shapes accurately.
- Classify triangles using the names ‘isosceles’, ‘scalene’ and ‘equilateral’.
- Identify and find horizontal and vertical lines in a range of contexts.
- Find and identify lines of symmetry within 2-D shapes.
What skills we want children to develop
Use knowledge to solve reasoning and problem solving questions such as:
Concrete and Pictorial Resources
Look at the hands of the clock.
Turn the minute hand one quarter of a turn clockwise. Where is the large hand pointing? What is the new time?
Real Life Maths
Children create a ‘Right Angle Tester.’
They can then go on a right angle hunt around school. Find and draw at least 3 right angles you have seen around your school.
Teddy describes a shape.
Teddy says, “My shapes has 3 right angles and 2 obtuse angles.”
What could Teddy’s shape look like?
Describe a shape in terms of its angles for a friend to draw.
- If we start by facing ________ and make a _______ turn, what direction will we be facing?
- Where can you see a right angle in the classroom/ around school/ outside?
- Which shapes contain right angles?
- Can you see an acute/obtuse angle around the classroom?
- How many degrees are there in a right angle?
- Draw an acute/obtuse angle.
- How many angles does a _______ have?
- What are the names of the different types of triangles?
- Can you draw your own shape that has a horizontal and vertical line of symmetry?
- Explain what you understand by the term ‘symmetrical’.