Lesson 13

Medidas fraccionarias en diagramas de puntos

Lesson Purpose

The purpose of this lesson is for students to display a set of measurements in fractions of a unit (\(\frac {1}{8}\), \(\frac {1}{4}\), and \(\frac {1}{2}\)) on a line plot and interpret the data. Students also add and subtract fractions to answer questions about data presented in line plots.

Lesson Narrative

In grade 3, students generated measurement data in nearest \(\frac{1}{2}\) inch or \(\frac{1}{4}\) inch and represented such data on line plots. Earlier in the course, students learned about equivalent fractions and about sums and differences of fractions with the same denominator. In this lesson, students plot data involving lengths measured in \(\frac{1}{8}\) inch and analyze the data. They use the line plots and their knowledge of equivalence and fraction operations to answer questions about situations.

An optional measuring activity is included in the lesson. While grade 4 standards do not require students to measure lengths or generate measurement data, measuring reinforces student understanding of the relative size of fractions and gives meaning to the context used in subsequent activities.

The activities in this lesson call for used colored pencils. If colored pencils are unavailable, substitute with regular pencils.

  • Representation
  • MLR7

Learning Goals

Teacher Facing

  • Analyze and interpret fractional measurement data on line plots.
  • Organize measurement data in fractions of a unit ($\frac {1}{8}$, $\frac {1}{4}$, $\frac {1}{2}$) onto line plots.

Student Facing

  • Hagamos diagramas de puntos y analicemos los datos.

Required Materials

Materials to Gather

Required Preparation

Activity 1:

  • Each student needs a used colored pencil.

CCSS Standards

Building On

Addressing

Building Towards

Lesson Timeline

Warm-up 10 min
Activity 1 25 min
Activity 2 20 min
Activity 3 15 min
Lesson Synthesis 10 min
Cool-down 5 min

Teacher Reflection Questions

Today’s lesson encouraged small-group collaboration. How did students interact with each other’s ideas today in the work? How can you ensure in future small-group collaborations that all students’ voices are heard?

Suggested Centers

  • Estimate and Measure (1–4), Stage 4: Eighth Inches (Addressing)
  • Target Measurements (2–5), Stage 3: Eighth Inches (Addressing)
  • Creating Line Plots (2–5), Stage 2: Quarter Inches (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