Hint for Building Tetraminoes

Building Tetraminoes
Goal of Activity:	The goal of this activity is to first play around with the various configurations of sets of 4 squares and then to create a strategy for determining how many different ways that four squares can be aligned to make distinct tetraminoes. NOTE: if one tetramino can be rotated or flipped to match another, then the two are not distinct.
Directions:	Pull red squares from the stack by dragging the point in the lower left corner. Arrange them on your workspace to keep track of the designs that are distinct. Once you have finished, click on your browser's "Back" button to return to the lesson and answer the question. When you have successfully answered the question, you will move on to the next section of the lesson.