Lesson 4

Estimating with Multiplication

Est. Class Sessions: 2
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Mathematics Standards

4.NBT.A
Generalize place value understanding for multi-digit whole numbers. (4.NBT.A.3)
4.NBT.B
Use place value understanding and properties of operations to perform multi-digit arithmetic. (4.NBT.B.5)
4.OA.A
Use the four operations with whole numbers to solve problems. (4.OA.A.3)
4.OA.B
Gain familiarity with factors and multiples. (4.OA.B.4)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP3.
Construct viable arguments and critique the reasoning of others.
MP6.
Attend to precision.

Students develop strategies for computational estimation for multiplication. Students explore situations where estimates are appropriate and make estimates using convenient numbers.

Content in this Lesson

  • Choosing convenient numbers [E6].
  • Estimating sums, differences, and products [E6].
  • Deciding when to find an estimate and when to find an exact answer [E8].
  • Deciding when to overestimate or underestimate an answer [E6].
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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

ruler

Materials for the Teacher

Display of the first page of the Travel Estimation section (Student Guide) Page 274
Display of the first page of Our Best Estimate pages (Student Activity Book) Page 225
Unit 7 Assessment Record

Assessment in this Lesson

Assessment Expectation Assessed
Estimating with Multiplication
Check-In: Questions 13–16
Student Guide
Page 275
E2.
Multiply numbers that are multiples of ten.
E6.
Estimate products.
Operations, Divisibility, and Estimation Quiz
Assessment Master with Feedback Box
Teacher Guide - digital
E1.
Use divisibility rules to identify factors and multiples.
E2.
Multiply numbers that are multiples of ten.
E5.
Follow the order of operations.
E6.
Estimate products.

Vocabulary in this Lesson