Each of the pictures is meant to represent a word which includes an [OW] vowel sound.
Drag from the TOP of the left hand column 8 of the 9 pictures into boxes in the grid.
Using the SPARE box move the pictures about until you think they are in rows of pictures which create the correct ALPHABETICAL WORD ORDER.
*Take care, once the final picture is in place the grid becomes FROZEN.
To restart the activity just refresh the page.