The Space Between

Students represent and compare subtraction strategies on a number line. Note: Activities 1 and 2 were updated in the Teacher Edition PDF and in the Teacher Presentation Screens on 1/12/2026.

By Amplify Classroom

Grades: 2nd Grade

Subject: Math

Learning goals: Today’s Goals • Represent subtraction strategies within `100` on a number line. • Language Goal: Compare subtraction strategies and representations. (Speaking and Listening) Materials Lesson Resources: Number Lines (0–100) PDF or Split Number Line (0–100) PDF (from prior lessons); Classroom materials: chart paper, dry-erase markers (optional), markers, Questions to Ask Yourself chart (from Unit 2), colored pencils (as needed)