Number scales is mathematical teaching tool aimed at primary and lower secondary pupils.
It was designed as a classroom tool to be projected onto an interactive whiteboard and used by a teacher to prompt discussion about simple number equations.
The keypad is used to place numbers on the stage which can then be placed on the left and right scales to see if they balance. You can choose to use simple numbers, from 0 to 9, negative numbers, unknowns (n) and larger numbers from 10 to 90.
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