Multi-age 3–6, mathematics, Year B – Unit 19
This unit develops the big idea that angles are the primary structural component of many shapes.
Syllabus
Syllabus outcomes and content descriptors from Mathematics K–10 Syllabus (2022) © NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales, 2024.
In this 2-week unit, students are provided opportunities to:
- recognise and describe angles as less than, equal to, about the same as or greater than a right angle (Stage 2)
- investigate angles on a straight line, angles at a point and the relationships formed by the intersection of straight lines (Stage 3)
- interpret digital time displays and determine the time remaining until the next hour to solve problems involving duration, using 12- and 24-hour time
- combine and split common shapes to create other common two-dimensional shapes and rearrange them using translations, reflections and rotations.
Syllabus focus and content groups
Geometric measure B – MAO-WM-01, MA2-GM-03
Angles: Compare angles to a right angle
Two-dimensional spatial structure B – MAO-WM-01, MA2-2DS-01
- 2D shapes: Create two-dimensional shapes that result from combining and splitting common shapes
- 2D shapes: Create symmetrical patterns and shapes
Non-spatial measure B – MAO-WM-01, MA2-NSM-02
- Time: Represent and interpret digital time displays
- Time: Use am and pm notation
Geometric measure A – MAO-WM-01, MA3-GM-03
- Angles: Estimate, measure and compare angles using degrees
- Angles: Use a protractor to measure and identify types of angles
Geometric measure B – MAO-WM-01, MA3-GM-03
- Angles: Investigate angles on a straight line and angles at a point
- Angles: Investigate the relationships formed by the intersection of straight lines
Two-dimensional spatial structure B – MAO-WM-01, MA3-2DS-01
2D shapes: Dissect two-dimensional shapes and rearrange them using translations, reflections and rotations
Non-spatial measure B – MAO-WM-01, MA3-NSM-02
Time: Solve problems involving duration, using 12- and 24-hour time