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Writing an Estimation Word Problem, Day 1
Lesson 7 of 8
Objective: SWBAT write an original word problem for estimating fraction sums.
Do Now
In preparation for the lesson, students will review the concept of estimating fraction sums.
Do Now
Estimate the sum.
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After 5 minutes, I will select 3 students to share and explain their answers.
Hook
I will read The Math Curse by Jon Scieszka and Lane Smith to students. It is a story about a student who finds a math problem in everything she does at home and school. This will lead into the lesson of students writing their own math problems.
Resources (1)
Resources (1)
Resources
Mini Lesson
My goal for students this year is to be able to write original word problems for various topics and solve each other's word problems. As an important step towards this goal, students need to be able to identify what a good word problem looks like. I will present a few word problem that we will solve as a class. Then we will discuss the qualities of a good, solvable word problem.
Ex. 1  Last season Nick picked 1 ¾ bushels of tomatoes from his kitchen garden and 14 1/3 bushels from his canning garden. About how many total bushels of tomatoes did he harvest?
Ex. 2  Roy needs 2 yards of molding to put around the bottom of a stand. He has two pieces of molding: one is 7/8 yard long and the other is 8/7 yard long. Estimate whether he has enough molding.
Rather than tell students what makes a good word problem, I'd like them to build on what they already know.
What is a word problem?
Students may respond with:
 A word problem is a story with math.
 A math question with a lot of information.
What makes a word problem good and solvable?
Students may respond with:
 It gives important information.
 It has key words.
 It's interesting.
 It has an answer.
 It tells a story.
 You can use a math strategy to solve it.
After they've brainstormed and shared ideas about word problems, I will ask students a few clarifying questions. Do word problems always have a question? Can a word problem have more than one answer? What's the difference between an easy word problem and a difficult word problem?
Group Work
With their group, students will write a word problem on estimating fraction sums. They will have to solve their word problem to be sure it makes sense. Students are grouped homogeneously by math level. This will encourage a differentiated level of problems.
Directions: With your group, write an original word problem for the topic of estimating fraction sums/differences. Solve the word problem.
This is a 2 day assignment. For this first day, I will encourage students to focus on brainstorming scenarios, names, types of questions,...
Lesson Review
I will conclude the lesson by answering any additional questions students may have about the project. For example, students may wonder whether they can include more than one question or a multistep problem.
Similar Lessons
Environment: Urban
Environment: Urban
Environment: Urban
 UNIT 1: First Week of School
 UNIT 2: Properties of Math
 UNIT 3: Divisibility Rules
 UNIT 4: Factors and Multiples
 UNIT 5: Introduction to Fractions
 UNIT 6: Adding and Subtracting Fractions
 UNIT 7: Multiplying and Dividing Fractions
 UNIT 8: Algorithms and Decimal Operations
 UNIT 9: MultiUnit Summative Assessments
 UNIT 10: Rational Numbers
 UNIT 11: Equivalent Ratios
 UNIT 12: Unit Rate
 UNIT 13: Fractions, Decimals, and Percents
 UNIT 14: Algebra
 UNIT 15: Geometry
 LESSON 1: Fractions Review: Simplifying Fractions
 LESSON 2: Improper Fractions and Mixed Numbers
 LESSON 3: Estimating Fractions
 LESSON 4: Estimating Fraction Sums
 LESSON 5: Estimating Fraction Sums in Word Problems, Day 1
 LESSON 6: Estimating Fraction Sums in Word Problems, Day 2
 LESSON 7: Writing an Estimation Word Problem, Day 1
 LESSON 8: Writing an Estimation Word Problem, Day 2