1-2-3 Come Do Some Pattern Block Activities With Me Pattern blocks are a wonderful manipulative for all sorts of activities, and introduce students to a few more geometric shapes, like the rhombus and trapezoid. My Y5s especially enjoyed lying on their tummies and making long lines of various patterns. (ABAB, ABBA, ABC-ABC etc.) Not that we need anymore "to do" things added to an already overwhelming list, but as long as your kiddos are playing with pattern blocks, they might as well learn...