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Related topic
Mathematics / Year 4 / Measurement
Curriculum content descriptions
estimate and compare angles using angle names including acute, obtuse, straight angle, reflex and revolution, and recognise their relationship to a right angle (AC9M4M04)
Elaborations
- classifying the interior angles of a range of shapes, using examples of angles to identify acute, obtuse, right and reflex angles
- identifying angles within the environment and estimating whether they are acute, obtuse right or reflex
- creating a right-angle template using cardboard or a double-folded piece of paper and using it to compare angles in the environment, commenting on whether they are smaller than or greater than a right angle
- using different measuring tools such as a spirit level or set squares to determine whether lines or objects are straight, square or perpendicular (at right angles)
General capabilities
ScOT terms
Degrees (Angles), Estimation, Angles