Primary National Strategy - Interactive Teaching Programs



Index

Area
Calculating angles
Coordinates
Counting on and back
Data handling
Decimal number line
Difference
Division Grid
Fixing points
Fractions
Grouping
Isometric grid
Line graph
Measuring cylinder
Measuring scales
Moving digits
Multiplication facts
Multiplication grid
Number dials
Number facts
Number grid
Number line
Number spinners
Ordering numbers
Place value
Polygon
Remainders after division
Ruler
Symmetry
Tell the time
Thermometer
Twenty cards

Counting on and back

This ITP simulates a 100-bead string. You can move all the beads to the right of the string and move individual or groups of beads to the left side of the string by clicking on selected beads.




Run this ITPRun Counting on and back 1.1
Counting on and back

The controls also allow you to move 1 or 10 beads to the left or right of the string to show addition and subtraction. This ITP can be used to model different counting and calculation strategies.

Counting on and back controls

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Copyright 2005 Primary National Strategy