AC9M4M04
Year 4
Mathematics
AC9M4M04 | Year 4 Mathematics: Measurement
Content Descriptor
Content descriptor estimate and compare angles using angle names including acute, obtuse, straight angle, reflex and revolution, and recognise their relationship to a right angle
Strand
Measurement
Substrand
Measurement
This content descriptor sets out learning for Year 4 Mathematics. Use it to plan lessons and assessment with the Australian Curriculum v9.
Elaborations
- • Elaboration classifying the interior angles of a range of shapes, using examples of angles to identify acute, obtuse, right and reflex angles
- • Elaboration identifying angles within the environment and estimating whether they are acute, obtuse right or reflex
- • Elaboration 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
- • Elaboration 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)
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