Yes, Unifix cubes got a lot more use at our house. They were used for building things, kinda like Legos, but also for making more salient concepts like arrays, area, circumference, fractions, word problems, patterns, etc. They were also used in pretend play, where they were sorted into different families or groups and "lived" in houses built by other unifix cubes. In my house they were used by all of my kids - two of whom are very mathy and one of whom definitely is not.

She thought she could, so she did.