ORIGO Big Book – Year 2: The Fun Machines

Australian Curriculum ORIGO Education mathematics resources for primary classrooms.

The Fun Machines explores the inverse relationship between addition and subtraction.

These whole-class activities provide students with the opportunity to:

listen to a story about addition
use pictures to represent addition and subtraction
explore the idea of backtracking to undo an operation
discuss the change (rule) that occurs in various addition and subtraction problems
add, subtract, double and halve numbers