Stage: 1 Challenge Level: 
You have $18$ counters to put on a grid. You can place the
counters where the lines of the grid cross over each other, not in
the squares.
Arrange any number of counters on the grid to make a rectangle
(not just its outline).
What numbers of counters make rectangles?
How many different rectangles can you make with each number of
counters?
You could use this interactivity to help you.
This text is usually replaced by the Flash movie.
Factors and multiples. Practical Activity. Tangram. Rectangles. Interactivities. Games. Visualising. Compound transformations. Working systematically. Counters.
Published February 2005.
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