Eco-bricks Color Education set is a part of the Once Kids Education full line of products that are designed with Educators, Home Schoolers, etc in mind! Create colorful worlds and masterpieces with this 86 piece set! Eco-bricks Color are 100% wooden construction blocks that are colored using a non-toxic water-base tint. The blocks are beautifully designed to jump-start the creativity! The Eco-bricks Color Education Medium set comes with: 30 - 4 Dot Blocks in assorted colors and natural 48 - 8 Dot Blocks in assorted colors and natural 4 - 16 Dot Blocks in assorted colors and natural 4 - 16 Dot Axels in natural Eco-bricks Color construction blocks excite students and aid in any subject lesson. We designed a lesson where you can utilize the blocks while learning / teaching Addition! Find the specifically designed lesson to accompany the Eco-bricks Color Education set: Find the Lesson Plan at www.once-kids.com