Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Grouping and Grazing

For Students Pre-K - 1st Standards
A game that reviews grouping in fives and tens, and adding and subtracting. The instuctions are clear and include a video of how to play.
Lesson Plan
Better Lesson

Better Lesson: Building Tens at the Lego Factory

For Teachers 1st Standards
SWBAT create a number using groups of tens and extra ones.
Unit Plan
AAA Math

Aaa Math: Counting by Tens

For Students K - 1st Standards
This lesson is about counting by tens from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.
Lesson Plan
Alabama Learning Exchange

Alex: Place Value Party

For Teachers 2nd
After reviewing place value students will create a "Place Value House" as a resource. Students will answer work problems independently. Students group numbers by hundreds, tens and ones.

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