Lesson 3

Making Predictions from Best-Fit Lines

Est. Class Sessions: 1
X

Mathematical Standards

3.OA.A
Represent and solve problems involving multiplication and division. (3.OA.A.3)
3.MD.A
Solve problems involving measurement and estimation. (3.MD.A.2)
3.MD.B
Represent and interpret data. (3.MD.B.4)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP4.
Model with mathematics.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.
MP7.
Look for and make sense of structure.

Students read a story about two children who are in the Caribbean searching for the wrecks of two Spanish galleons. Inspired by their schoolwork with Mr. Origin, they plot the location of sunken items they find on a grid with an origin and uncover an important clue to locating the sunken ship. Students use a point graph representing the map to practice using coordinates and draw a best-fit line to make predictions.

Content in this Lesson

  • Finding locations and objects on a map [E4].
  • Plotting points using coordinates [E4].
  • Measuring length in centimeters [E5].
  • Interpreting point graphs [E10].
  • Drawing a best-fit line [E9].
  • Making predictions using a point graph with a best-fit line [E11].
  • Solving multiplication problems using measurement [E3].

Daily Practice and Problems G–H

G. Fact Families: Last Six Facts

H. Break-Apart Facts

X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

Student Guide
Student Activity Book

Teacher Resources

Teacher Guide - digital

Supplies for Students

centimeter ruler

Materials for the Teacher

Display of Treasure Map Master (Teacher Guide)
Unit 12 Assessment Record

Assessment in this Lesson

Assessment Expectation Assessed

Treasure Map
with Feedback Box
Student Activity Book
Pages 481–482

E3.
Solve multiplication and division problems involving measurement.
E4.
Plot points and find locations or objects on a map using coordinates.
E5.
Measure length in centimeters.
E9.
Make a point graph using ordered pairs and draw a best-fit line.
E11.
Make predictions about a data set using a data table or point graph with a best-fit line.

Vocabulary in this Lesson