SumBlox are math building blocks whose individual size is proportional to the number value. Put a "1" block on top of another "1" block and it is the same height as the "2" block. Stack three "3's" beside a "9" and you'll notice they come up to the same level. 

Through hands on play, Sumblox engages and excites children to visually represent math in a unique and fun way that promotes collaboration and cooperation. Stack proportional number blocks and they are literally equal in size and value! SumBlox help with developing understanding of addition, fractions, composing and decomposing, multiplication and so much more!

SumBlox Building Blocks teach a wide range of mathematics through guided, hands-on discovery in our SumBlox Learning Activities. Currently available are series that teach addition and subtraction, multiplication, and fractions. Each series empowers the educator to gradually move students to a deeper understanding of the properties of math through step-by-step investigations, engaging discussions and fun challenges.

New compact size (50% smaller than originals) is ideal for individual desk work or to take home.  For struggling middle school students Mini SumBlox are a tactile bridge between semi-concrete and abstract understanding of values and operations. Includes the all-new deck of 36 Early Childhood Activity Cards: math concepts, problem solving, races, games, and plus imaginative creations.  Made with the same artisan quality and durability, they stack just as well as the original set. Comes in a solid beechwood box.  

With SumBlox, students solidify their understanding of addition by focusing on its properties and manipulating the addend pairs of ten. Students connect addition to its inverse property, subtraction, and develop a strategy to find the difference between two whole numbers. These new skills are learned and assessed through fun activities like building the Tower of Ten.

Students use SumBlox to investigate factors and multiples. Multiplication comes to life as they physically see the relationship between multiplication and repeated addition. As they dig deeper into multiplication, they discover the commutative property and build SumBlox Factor Walls to discover all of the factors of a number.