Lesson 12

Maneras de representar situaciones de medidas

Lesson Purpose

The purpose of this lesson is for students to make sense of situations involving measurements, interpret representations of the situations, and ask and answer questions about them.

Lesson Narrative

In previous lessons, students estimated and measured weights and liquid volumes. They learned a variety of methods and representations to solve problems involving all four operations, and used representations that made sense to them.

In this lesson, students make sense of tape diagrams (MP2), which better represent the continuous nature of measurement contexts. The context of a fair is used in this lesson and subsequent ones.

  • Engagement
  • MLR8

Activity 1: Concurso de calabazas gigantes

Learning Goals

Teacher Facing

  • Ask and answer questions about situations involving measurements.
  • Interpret representations of situations involving measurements.

Student Facing

  • Démosle sentido y representemos situaciones de medidas en una feria.

Required Materials

Materials to Gather

Materials to Copy

  • Card Sort: Giant Pumpkins, Spanish

Required Preparation

Activity 2:

  • Create a set of cards from the blackline master for each group of 2.

CCSS Standards


Building Towards

Lesson Timeline

Warm-up 10 min
Activity 1 20 min
Activity 2 15 min
Lesson Synthesis 10 min
Cool-down 5 min

Teacher Reflection Questions

How did you see students using their prior mathematical knowledge to solve problems involving the four operations in these new measurement contexts?

Suggested Centers

  • Number Puzzles: Addition and Subtraction (1–4), Stage 5: Within 1,000 (Supporting)
  • Target Numbers (1–5), Stage 7: Subtract Hundreds, Tens, or Ones (Supporting)

Print Formatted Materials

Teachers with a valid work email address can click here to register or sign in for free access to Cool Down, Teacher Guide, and PowerPoint materials.

Student Task Statements pdf docx
Lesson Cover Page pdf docx
Cool Down Log In
Teacher Guide Log In
Teacher Presentation Materials pdf docx
Blackline Masters zip