What we like about this lesson

Mathematically:

• Highlights multiple ways for students to work towards key grade-level fluency expectations for standards 1.OA.A.1, 1.OA.C.6
• Covers two of the fifteen addition and subtraction problem types students should work with in first grade (see additional thoughts below)
• Guides students to move between the concrete and the abstract (MP.2)

In the classroom:

• Uses multiple concrete representations and visual models to make the mathematics explicit
• Prompts students to share their developing thinking and understanding (Student Debrief and throughout lessons)
• Provides opportunities and suggestions for differentiation
• Gives formal and informal opportunities for teachers to check for understanding