Additive strategies
Learning intention
Students will learn to select and apply effective strategies and incorporate reasoning when offering solutions to problems involving additive thinking.
Syllabus outcome
- MAO-WM-01 develops understanding and fluency in mathematics through exploring and connecting mathematical concepts, choosing and applying mathematical techniques to solve problems, and communicating their thinking and reasoning coherently and clearly
- MA3-RN-01 applies an understanding of place value and the role of zero to represent the properties of numbers
- MA3-AR-01 selects and applies appropriate strategies to solve addition and subtraction problems
National Numeracy Learning Progression
Additive strategies
- AdS7 - Flexible strategies with two-digit numbers
- AdS8 - Flexible strategies with three-digit numbers and beyond
Task outline
What do you notice and wonder?
Students solve number problems using flexible strategies..
Addition wheel
Students use an addition wheel to develop a variety of strategies to solve number problems.
Target number
Students try to record as many different equations (number sentences) with a specified target number as the total.
Finding numbers
Students use their knowledge of additive strategies to develop alternative equations (number sentences).
Closest to 100
Students to use a range of additive thinking to reach the number 100.
Dicey addition
Students use understanding of place value to create number sentences where the closest to 100 wins.
Four strikes and you’re out!
Students use a mathematical version of ‘Hangman' to think and reason numerically to solve a problem.