These exercises, activities and games are designed for students to use independently or in small groups to practise number properties. Some involve investigation (see Related Resources) and may become longer and more involved tasks with subsequent recording/reporting. Typically an exercise is a 10 to 15 minute activity.
- Use a range of mental strategies to add to 90, 180, 270, 360.
- Find factors of 90, 180, and 360.
- Use additive strategies to balance equations.
- Use multiplicative strategies to balance equations.
- Fold paper to show an angle.
- Addition and subtraction, AA (Stage 6)
- Multiplication and division, AM (Stage 7)
- 100s chart and flipblock 100s board
- Calculator
- Number line
- Counters
- Practice exercises with answers (PDF or Word)
- Protractor, compass and ruler or straightedge
Prior knowledge
Background
Using the context of compass angles students can practise mental strategies to find numbers that add to 90, 180, 270 and 360, and list the factors of 90, 180, and 360. Students also use multiplicative strategies to complete multiplication equations using the context of compass angles, e.g. 90 x = 360. Learning to balance equations is an important concept in algebraic thinking. In this activity students balance equations so both sides total to 90, 180 or 360. The activity also includes a geometry focus as studetns match a bearing with a compass direction.
Comments on these exercises