A one-page angles check for Year 5, with the answer key on page 2. Pupils name four angles marked 50°, 120°, 250° and 90° as acute, obtuse, reflex or right. Next they measure two angles with a protractor. Then they find two missing angles without one: a on a straight line beside 72°, and b around a point beside 150° and 90°. The sheet follows England National Curriculum geometry for Year 5, and the key accepts a small margin on the two measured angles.
Geometry - properties of shapes
“know angles are measured in degrees: estimate and compare acute, obtuse and reflex angles”
Question 1 asks pupils to name angles of 50°, 120°, 250° and 90° as acute, obtuse, reflex or right.
Geometry - properties of shapes
“draw given angles, and measure them in degrees (°)”
Question 2 gives two angles to measure with a protractor, and the key accepts 33° to 37° and 138° to 142°.
Geometry - properties of shapes
“identify: angles at a point and one whole turn (total 360°); angles at a point on a straight line and ½ a turn (total 180°); other multiples of 90°”
Question 3a finds a from 72° on a straight line, and question 3b finds b from 150° and 90° around a point.
Four angles labelled a) to d), marked 50°, 120°, 250° and 90°. Pupils write acute, obtuse, reflex or right under each one.
Two angles with no size printed. Pupils measure each one and write the answer in degrees.
Part a shows 72° on a straight line and asks for a. Part b shows 150° and 90° around a point and asks for b. Pupils do not use a protractor.
The four angle types, the two measures with an accepted range of 2° either side, and the working 180° - 72° = 108° and 360° - 150° - 90° = 120°.
End of unit
Give it as a ten-minute check once pupils have met all four angle types and the facts for 180° and 360°. Question 3 shows who can use those facts without a protractor.
Protractor practice
Question 2 works on its own with a class set of protractors. Watch where pupils place the zero line, because 35° is often read as 145° on a protractor with two scales.
Marking in pairs
Pupils swap sheets and mark with page 2. The key shows the subtraction for each missing angle, so a wrong answer can be traced to its step.
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