Unit 4, Lesson 16
Encontremos el valor de expresiones
Kínder
Preparation
Lesson Narrative
In previous lessons, students interpreted expressions and connected expressions to story problems and drawings. This is the first lesson where students begin by working with only expressions. Because students have matched expressions to drawings in previous lessons, students may create a drawing to find the value of the expression. Students may also use their fingers or objects to represent the expression and count to find the total or difference.
- Action and Expression
- MLR8
- Explain (orally) methods for finding the value of addition and subtraction expressions.
- Encontremos el valor de expresiones.
Required Materials
Activity 1
Activity 2
Activity 3
Required Preparation
- Gather materials from previous centers:
- Roll and Add, Stages 1 and 2
- Shake and Spill, Stages 1-3
- Number Race, Stage 1
- Math Stories, Stages 1 and 2
Suggested Centers
NoneTeacher Reflection Questions
In a previous unit, students represented numbers in multiple ways, including using their fingers, objects, and drawings. How did students work with representing numbers prepare them to find the value of expressions in this lesson?