Unit 3, Lesson 19
Situations and Equations
Grade 3
Preparation
Lesson Narrative
In this lesson, students are able to apply what they have learned in this section to write equations that represent two-step word problems, using a letter for the unknown quantity. They persevere to solve two-step word problems, and decide if their answer makes sense (MP1).
- Engagement
- MLR5
- Match (orally) tape diagrams, equations, and two-step word problems that represent the same relationships.
- Represent and solve two-step word problems, using equations with a letter standing for the unknown quantity.
- Let’s represent and solve problems.
Required Preparation
None
Teacher Reflection Questions
Who has been sharing their ideas in class, lately? Make a note of students whose ideas have not been featured in class and look for an opportunity to encourage them to share their thinking in tomorrow’s lesson.