Free interactive resource to help develop the skill of subiti(s/z)ing
dice
numbers 1 to 6
standard dice patterns
rotated in all orientations
10 frame
numbers 1 to 10
filled in rows/columns of 2 or of 5
rotated in all orientations
scatter
numbers 3 to 9
weighted to lower numbers
requires compounding of smaller subiti(s/z)ations
random layouts
rewards
speed is measured for each number
greater reward is given for accuracy by persistent streak score
requires compounding of smaller subiti(s/z)ations
author
Dave Salt is a full time Junior School teacher at an international school in SE Asia. Please see other resources aimed at developing a visual understanding of number at
MathsToolkit.com