## Search Results ### Food Pyramid Power

Pre-K-2
Use algebraic thinking to explore properties of addition. ### Do It with Dominoes

Pre-K-2
Explore four models of addition (counting, number line, sets, and balanced equations) using dominoes. ### Comparing Connecting Cubes

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

Pre-K-2

Use buttons to explore logical and numerical relationships. ### Amazing Attributes

Pre-K-2
Collect and sort data using objects, pictures, and symbols. ### 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. ### Calculating Patterns

Pre-K-2
Represent patterns in different ways. ### Island Inequality Mat

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