Explain the model choice

2nd Grade Math practice: Why does a part-part-whole bar model fit a story with 16 red kites and 13 blue kites. Part of two-step add/subtract (Two-Step Add/Subtract).

~10 min

Students explain how the bar model matches the story situation.

Two parts, one whole

Two parts, one whole
  • A part-part-whole bar model fits when a story has two parts that join together. The two smaller parts make one whole.

A part-part-whole bar model fits when a story has two parts that join together. The two smaller parts make one whole.

💡 Listen for two groups being put together.