Lesson: Comparative Bar Models: Numbers up to 100 Mathematics • 2nd Grade

In this lesson, we will learn how to solve one-step additive comparison problems with numbers up to 100 by drawing a comparative bar model.

Lesson Plan

Students will be able to

Q1:

Madison scored 41 points in a sports competition. Hannah scored 28 points more than Madison.

We want to find out how many points Hannah scored. We can use a part-part-whole diagram to model this problem.

Is Hannah’s score the whole or the other part?

How many points did Hannah score?

Q2:

Emma scored 72 points in a sports competition. Jacob scored 19 fewer points than Emma.

We want to find out how many points Jacob scored. We can use a part-part-whole diagram to model this problem.

Is Jacob’s score the whole or the unknown part?

How many points did Jacob score?

Q3:

Select the word problem that can be solved using this part-part-whole diagram.