Here is a 3 column grid.
In the top left hand corner is a pile of numbers.
Blue 1-5, red 1-5 and the symbols < = >.
Drag the blue numbers into the first column.
Drag the symbols < = > into the second column.
Drag ALL BUT ONE of the red numbers into the third column
Using the spare frame move the numbers and symbols around in their columns.
*Take care !!! when you drag in your last number the grid becomes FROZEN.
To restart the activity just refresh the page.