Burst Series: Developing fluency and part whole relationships within 20 (Grades 1, 2 and 3)

Name the Equation: Working Within 20

This routine is designed to develop essential big ideas strategies in early numeracy. These include developing students’ fluency with the complements of 20 and relational thinking. 
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short and concise tutorial
Lesson Write-Up
Suggestions for differentiation
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Resource Spotlight

This reasoning routine is featured in Early Childhood Math Routines: Empowering Young Minds to Think, by Antonia Cameron, Patricia Gallahue, and Danielle Iacoviello. Visit the Stenhouse website to purchase this must have resource for early childhood educators.
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