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Features

  • The goal and its "I can" line, what to get ready and the words to use
  • A 45 minute lesson in five steps (warm up, teach with words to say, try it together, practice, exit ticket)
  • Questions to ask, and the mistakes students make and what to do about them
  • Ideas for students who need help or are ready for more
  • Each plan ends with the Animal Math worksheets, worksheet maker and quiz for that lesson
  • Lessons: sums of unit fractions, breaking a fraction apart, adding and subtracting fractions, mixed numbers and fractions greater than 1, adding and subtracting mixed numbers, checking with benchmarks and story problems

4th Grade Math CurriculumUnit 8

These are the lesson plans for Unit 8 of 15 in the 4th Grade Math Curriculum: 127 lessons in teaching order, week by week, each with a lesson plan and an exit ticket.

Also for this unit: exit tickets, pre-check, unit review and test. See the whole year

Resources for Each Lesson

Everything each lesson plan points to, with links. Sheet numbers count worksheets: a color pack prints each sheet again in black and white.

8.1 Sums of unit fractions

8.2 Break a fraction apart

8.3 Add fractions

8.4 Subtract fractions

8.5 Mixed numbers and fractions greater than 1

8.6 Add mixed numbers

8.7 Subtract mixed numbers

8.8 Does the answer make sense?

8.9 Fraction story problems

Skills Covered

  • A fraction as a sum of unit fractions
  • Break a fraction apart in more than one way
  • Add and subtract fractions with like denominators
  • Rename mixed numbers and fractions greater than 1
  • Add mixed numbers
  • Subtract mixed numbers, trading 1 whole
  • Check an answer with benchmarks, and simplest form
  • Fraction story problems

How to Use This Pack

Nine lesson plans, one for each lesson of a 4th grade unit on adding and subtracting fractions and mixed numbers, in teaching order, after an overview page that lays the unit out day by day: a pre-check, the nine lessons, a review and the unit test. Each plan fits on one page. It gives the goal, what to get ready, the words to use, the lesson in five steps with the words to say, questions to ask, common mistakes and what to do about them, and the Animal Math worksheets, maker and quiz for the lesson.

In the Classroom

Print the unit, or just the day's page, and teach from it. Each lesson takes about 45 minutes: a 5 minute warm up, 10 minutes of teaching, 10 minutes together, 15 minutes of practice and an exit ticket at the end. Paper strips cut into unit fractions carry the first lessons, and number lines and tape diagrams the later ones. The exit tickets and the unit test are separate packs, made for these lessons, and the plans use other fractions than they do.

At Home

Teaching at home? Use the warm up and the "Try it together" step as a short lesson with paper strips, a measuring cup or a ruler, and the "Words to use" as the way to talk about it. The mistakes to watch for are the ones most children make.

Tips for Success

  • Read the "Watch for" box before the lesson: it is what to listen for while students work
  • Say the unit fraction out loud: 3 fifths plus 4 fifths is 7 fifths
  • Ask "About how big should the answer be?" before every sum and difference
  • Sort the exit tickets into got it, almost and not yet to plan the next day
  • Use the help and challenge ideas for small groups during practice

Common Core Standards Alignment

This pack supports the following Common Core State Standards for Mathematics:

  • 4.NF.A.2 Compare fractions with different numerators and denominators using common denominators or numerators, or a benchmark like 1/2; record with >, = or < and explain.
  • 4.NF.B.3a Understand adding and subtracting fractions as joining and taking away parts of the same whole.
  • 4.NF.B.3b Break a fraction apart into same-denominator fractions in different ways, like 5/6 = 2/6 + 3/6 = 1/6 + 4/6, and write the equations.
  • 4.NF.B.3c Add and subtract mixed numbers with the same denominator, for example by changing them to fractions or by using properties of operations.
  • 4.NF.B.3d Solve story problems that add or subtract fractions of the same whole with like denominators, using fraction models and equations.
  • 4.NF.B.4a See a fraction a/b as a copies of 1/b, such as 7/3 = 7 × (1/3), and show it with a fraction model.
  • 4.MD.B.4 Make a line plot of measurements in halves, quarters and eighths, and use it to solve problems that add and subtract fractions.

© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

4th Grade Adding and Subtracting Fractions Lesson Plans

Lesson plans for every lesson of a unit on adding and subtracting fractions with like denominators, from sums of unit fractions to mixed numbers and story problems. Each one-page plan gives a lesson in five steps, common mistakes and the worksheets to use, after a unit overview.

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What’s Included

  • 9 one-page lesson plans, one for each lesson of the unit
  • A unit overview: the unit day by day, what to get ready, how each lesson goes
  • Words to say, questions to ask and common mistakes for every lesson
  • The worksheets, maker and quiz for each lesson (10 pages in all)
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