Completing the Square (CTS) doesn’t have to be a memorized algorithm. This worksheet gives students a chance to put together the puzzle pieces that are needed to figure out "what goes where" when doing CTS. First they square some binomials, then use those patterns for fill-in-the-blanks equations. Finally, they have problems to encourage them to think about the role of parentheses in CTS. This is ready to print, or to assign as an online Easel Activity. The digital version is ready-to-use, but y