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Worksheet
Curated OER

Add Tens

For Students 1st - 2nd
Learners solve six story problems about adding 10s. Provide 10-rods or objects they can group into 10s to visualize what is being asked. Two of the problems provide irrelevant information; with discussion and guidance, this is also a...
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Interactive
Curated OER

Teen Numbers

For Students 1st - 3rd
Reinforce that numbers in the teens are 10 plus more with this worksheet of 6 practice problems. Children count and circle a group of 10 objects. Then they count on the extras and write the total number in a box. Some sets have the 10...
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Lesson Plan
Curated OER

Teenagers

For Teachers 1st
In this fast-paced activity, learners identify the order of numbers from 13 to 20. They practice greater than and less than with verbal responses to pairs of numbers. Suggested accompaniments include counting forward and backward to 20....