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|Iona Greenfield, Carnegie Elementary School|
|A K-1 lesson designed to teach students to solve problems by guessing and checking; to identify length by using informal units to estimate; and to guess and write an addition and subtraction sentence for the number of peas in a pod. From the Geometry and Measurement section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for Learning Enhancement.|
|Levels:||Kindergarten, First Grade|
|Resource Types:||Manipulatives, Lesson Plans and Activities|
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