On the first day of their line unit, I taught kindergarteners some different types of lines. Then they used this printout to create pieces of a line puzzle. As students finished, I had them bring their pieces to the rug and start to assemble it into a temporary collaborative line puzzle. When I did this the second time, I trimmed the printout so students just had the square with four boxes on it. This made it easier to understand how to cut out the individual boxes.