Y10 Foundation: Topic 8: Geometry


    • Naming the different types of angles
    • Estimate the size of an angle in degrees
    • Measure and draw angle to the nearest degree
    • Use angle properties on a line and at a point to calculate unknown angles
    • Measure and calculating bearings
    • Mark parallel lines in a diagram
    • Use angle properties of triangles and quadrilaterals to find missing angles
    • Prove that the angle sum of a triangle is 180°
    • Explain why the angle sum of a quadrilateral is 360°
    • Find missing angles using properties of corresponding angles and alternate angles, giving reasons
    • Find the three missing angles in a parallelogram when one of them is given
    • Identify and list the properties of quadrilaterals (including kites)
    • Name all quadrilaterals that have a pair of opposite sides that are equal

Prior Knowledge:

    • An understanding of angle as a measure of turning
    • The ability to use a protractor to measure angles
    • Understanding of the concept of parallel lines
    • Recall the names of special types of triangle, including equilateral, right-angled and isosceles
    • Know that angles on a straight line sum to 180°
    • Know that a right angle = 90°

Key Vocabulary:

  • Copy and paste here.

Differentiation & Extension:

    • Measuring angles in polygons
    • Practical activities help understanding of the properties and proofs

Using & Applying ideas:

  • Collaborate here.

    • Make sure that all pencils are sharp and drawings are neat and accurate
    • Angles should be correct to within 2°

Teaching & Learning Resources:

3D Shapes Resources