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Number and Operations

Food Pyramid Power

Pre-K-2
Use algebraic thinking to explore properties of addition.
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Number and Operations

Do It with Dominoes

Pre-K-2
Explore four models of addition (counting, number line, sets, and balanced equations) using dominoes.
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Number and Operations

Comparing Connecting Cubes

Pre-K-2
Explore five models of subtraction (counting, sets, number line, balanced equations, and inverse of addition) using connecting cubes.
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Algebra

Begin With Buttons

Pre-K-2

Use buttons to explore logical and numerical relationships.

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Data Analysis and Probability

Amazing Attributes

Pre-K-2
Collect and sort data using objects, pictures, and symbols.
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Data Analysis and Probability

As People Get Older, They Get Taller

Pre-K-2
Through the course of the lessons, students are exposed to algebra, measurement, and data analysis concepts.
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Algebra

Calculating Patterns

Pre-K-2
Represent patterns in different ways.
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Number and Operations

Island Inequality Mat

Pre-K-2
The concepts of greater than, less than, and equal to are explored in this 2-lesson unit.
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Number and Operations

Let's Count to 10

Pre-K-2
Make groups of zero to 10 objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group.
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Number and Operations

Let's Count to 20

Pre-K-2
Make groups of 10 to 20 objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group.