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.
short and concise tutorial
Suggestions for differentiation
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.