# Learning through play

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Number Sense
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Subtraction
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## NUMBER SENSE

With SumBlox, the height of each number block corresponds to its value. Stack a "2-block" on top of a "3-block" and they equal the same height as the "5-block." This simple connection between height and symbol allows children to grasp math concepts earlier and retain them longer.

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## ADDITION & SUBTRACTION

If the heights are equal then the sums will also be equal.

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Multiplication
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Fractions
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## MULTIPLICATION & DIVISION

Build a factor wall and see the relationship between multiplication and repeated addition. Discover the commutative property through team games that explore factors and multiples.

• Understand the commutative property
• Find the factor of a given number
• Understand the relationship between multiplication and repeated addition
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SumBlox allow students to clearly see the relationship between the numerator and denominatore and use that knowledge to…

• Find fractional parts of a whole
• Compare and order fractions
• Convert improper fractions to mixed numbers
• Visualize equivalent fractions
• Add and subtract fractions
• Add fractions with different denominators

# What people are saying

This is one of the best products I have ever seen to help young children learn about numbers and basic arithmetic.

Professor Keith J. Devlin - Stanford Mathematician,
Popular Science Writer, author & NPR "Math Guy"

SumBlox is one of those ideas that seems so simple it is hard to believe nobody's thought of it before. These wooden blocks, shaped like digits with the heights that correspond to number values, create a playful way for young children to explore basic arithmetic.

Jordan Shapiro - Forbes, October 2014