Common Core Standards: 1.OA.A.12.OA.A.1

exercise By Josie Fixler12/10/2015

Tags: biology, cell

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exercise By Carla Williams2/20/2020

Tags: Counting

Common Core Standards: 1.OA.C.6

exercise By Josie Fixler4/28/2014

exercise By Mallory Bell4/5/2016

Common Core Standards: 1.NBT.A.11.NBT.B.21.NBT.B.2c1.NBT.B.31.NBT.C.5

exercise By Josie Fixler5/4/2015

Tags: starting ..., 20, 30..., starting ...

Common Core Standards: 1.G.A.3

exercise By Emily Lauer9/8/2014

Tags: unit fractions, first grade, , parts of a set

exercise By Alyssa Wilkey3/27/2018

Tags: DRE MATH

Common Core Standards: 1.MD.A.2

exercise By Josie Fixler7/29/2014

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