By: Amy Bilek, K-8 Math Instructional Coach at The Frances Xavier Warde School in Chicago Think back to your elementary years: Do you remember flashcards, timed tests, or the Around-the-World math game? Most of us learned our basic addition and …
Can you see the connection to the vertical method (algorithm)? Why is it necessary for students to understand this?
Here is an example of a grade 4 bar model/tape diagram. If you were Sophia’s teacher what more could you ask her to extend her thinking?