A Year 5 maths sheet on drawing angles with a protractor, over three pages. A three-step guide opens page 1. Pupils then draw eight angles of 35°, 70°, 90°, 115°, 145°, 50°, 160° and 25°, each from a starting line with a dot at the vertex. Page 2 asks how pupils checked their angles and sets one reflex angle of 220°, with the hint 360° − 220° = 140°. The key describes each drawing. It follows the England National Curriculum Year 5 geometry objectives.
Mathematics - Geometry: properties of shapes
“draw given angles, and measure them in degrees (°)”
Questions 1 to 8 give eight angles from 25° to 160°, and question 10 asks for 220°.
Mathematics - Geometry: properties of shapes
“know angles are measured in degrees: estimate and compare acute, obtuse and reflex angles”
Question 9 asks how pupils knew the type of their angle, and question 10 introduces a reflex angle.
Three steps: put the centre on the dot and line up 0°, count round on the correct scale and make a small mark, then join the dot to the mark with a ruler and draw the arc.
Eight starting lines, six on page 1 and two on page 2. The dot is at the left end of some lines and the right end of others, so pupils must pick the right scale each time.
Question 9 asks how pupils checked their angle was the right type. Question 10 gives a starting line in a large box for a reflex angle of 220°.
A description of each angle, with a tolerance of 2°, and the type of each. The key also explains question 9 and the 140° construction behind question 10.
Partner check
Pupils swap sheets and measure each other's angles. Anything more than 2° out is redrawn.
Model one on the board
Draw 115° where the dot is at the right-hand end, since that is where pupils tend to read the wrong scale.
Reflex challenge
Give question 10 to early finishers and ask them to explain how 360° − 220° helps them.
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