In this Number Talk, Katy Arrillaga engages her 2nd grade Spanish bilingual students in a discussion about strategies for mentally solving a problem involving two-digit addition with regrouping. The students share their strategies and evaluate each other’s approaches for solving the problem.

Taught by: Katy Arrillaga, Ruus Elementary School, Hayward Unified School District, Hayward, California

Mathematical Strand:

- Number & Operations in Base Ten