Can you make five differently sized squares from the tangram
Is there a best way to stack cans? What do different supermarkets
do? How high can you safely stack the cans?
What is the greatest number of squares you can make by overlapping
Can you make a rectangle with just 2 dominoes?
What about 3, 4, 5, 6, 7 ...?
Here's a rectangle made with 6 dominoes to get you