Unit 5, Lesson 11
Equations That Show 10
Kindergarten
Preparation
Lesson Narrative
In previous lessons, students saw equations as one way to represent the answer to a story problem. In this lesson, students make sense of equations in relation to 10-frames and fingers. Students work with many different compositions and decompositions of 10, which will be useful in future lessons when students find the number that makes 10 when added to a given number.
When students match different representations of addition (equations, 10-frames, and fingers) they reason abstractly and quantitatively (MP2).
- Representation
- MLR8
- Comprehend (in spoken language) the term “equation” refers to the notation “C = A + B”, is used to represent an addition situation, and is read as “C is A plus B.”
- Match (orally) equations and images that represent the same compositions and decompositions of 10.
- Let’s match equations to 10-frames and fingers.
Required Preparation
- Each student needs at least 2 different colored crayons.
- Gather materials from previous centers:
- Shake and Spill, Stages 1–3
- Counting Collections, Stage 1
- Roll and Add, Stages 1 and 2
Suggested Centers
NoneTeacher Reflection Questions
What makes someone good at math? In what ways are you making assumptions about which of your students are good at math?