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Lesson Plan
Fact Family Triangles
This hands-on lesson will get students thinking and talking about how the numbers in fact families are related. Use alone or with the lesson plan **Fact Family Trees.**
Grade
Subject
View aligned standards
Objectives
Academic
Students will be able to write related addition and subtraction facts within 20.
Language
Students will be able to describe how the numbers in a fact family are related with content-specific vocabulary using visual and partner support.
Introduction
(3 minutes)
- Draw a triangle on the board, and ask students what shape it is.
- Write the numbers 15, 7 and 8 inside the corners of the triangle, with 15 in the top corner.
- Ask students to turn and talk to a partner about what they notice about the numbers. Provide the sentence frame, “I notice ________.”