Lizzy hasn't been very interested in building with legos yet. She has tons of bricks but still she hardly plays with them. I was almost about to toss out the duplo blocks because she has so many legos and the duplos are for younger kids but I decided to see want else we could do with them. I went on pinterest and there are lots of free printables for the duplo blocks. We printed some color matching, counting, and pattern activities. Mostly because I can resuse these with the kids I work with but Lizzy really seemed to enjoy them and it's also been a big hit with the kids I work with so far.