Estimating How Many Using 10s
Understanding the size of a single group of 10 objects can help estimate how many in a larger group. Children count and circle a group of 10 pictured marbles to estimate how many in all. Five problems to solve.
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K-5 Mathematics Module: Number and Number Sense
Reinforce number sense with a collection of math lessons for kindergarteners through fifth graders. Young mathematicians take part in hands-on activities, learning games, and complete skills-based worksheets to enhance proficiency in...
K - 5th Math CCSS: Adaptable