What are unit blocks?

A little background on unit blocks- as we know them today, unit blocks were brought into existence by Caroline Pratt. They are mathematically designed based on the “unit” (which is 5.5 inches x 2.75 in x 1.375 in). All other blocks in a unit block set are multiples and fractions of the standard unit. This means that you can build with them universally. If you run out of one shape you can make it with others. If you want to build tall structures, it’s easy to balance blocks on top of one another because they are a standard height.

Unit blocks are made from solid hardwood and are left unpainted and uncoated so they are a neutral canvas for imaginative play and are able to grip each other when stacked. This is something you’ll find is different than many other popular types of blocks, and in my experience these details make a big difference in how the blocks are used.

Through experimenting with these mathematically constructed blocks children can intrinsically learn about fractions and multiples, about symmetry and balance, about patterns, about height, and length, about measurement and area! And those are just some of the math-y topics!