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K-5 Math Teaching Resources
Subtracting Mixed Numbers (Unlike Denominators)
Young mathematicians demonstrate their ability to subtract mixed numbers by completing this collection of fraction word problems. From figuring out the weight of objects in a package, to finding the difference in height between two...
Curated OER
Solve Story Problems: Sold! A Mathematics Adventure
Young mathematicians listen to the book Sold!: A Mathematics Adventure by Nathan Zimelman where they encounter ways to solve story problems. They then create and solve start unknown addition and subtraction equations. Resource builds in...
Curated OER
Justifying Answers
Young scholars study story problems and learn how to find and justify their answers. They will use a story problem and then respond to the prompt questions from the teacher. They must add and subtract facts to 6 and learn how to justify...
Rational Number Project
Initial Fraction Ideas Lesson 22: Overview
Have young mathematicians subtracting fractions in no time with this manipulative-based math lesson. Using their sets of fraction circles, learners explore a number of word problems involving the subtraction of fractions before working...
Houghton Mifflin Harcourt
Ten More, Ten Less
Six story problems needing answers await your class. Pictures provide some scaffolding, but consider also using unit cubes and 10-rods to compose and solve equations for each. Some of the problems require a two-step processes to solve. A...
Noyce Foundation
Apple Farm Field Trip
Monitor the growth of young mathematicians with a comprehensive addition and subtraction assessment. Using the context of a class field trip to an apple orchard, this series of four story problems allows children to demonstrate their...
Curated OER
Do I Add? or Subtract?
Fourth graders read a book. In this word problems activity, 4th graders review the operations addition and subtraction, read the book Sea Sums, learn strategies for determining if they should add or subtract, and solve story problems,
Curated OER
Let's Shop
Upper graders add and subtract decimals, using concrete objects and story problems. Note: The Concentration Cards and Homework assignment link at the bottom of the plan doesn't work.
Curated OER
Subtracting With the Hundreds Place And Regrouping
Learners solve math problems involving subtracting with regrouping. They practice the steps for subtracting in the hundreds place with regrouping, through teacher guided practice. Independently, pupils complete story problems involving...
Curated OER
Initial Fraction Ideas Lesson 21: Overview
Students become familiar with the process of subtracting fractions. In this subtracting fractions lesson, students complete examples and then write a story problem. Students continue to practice while sharing their problems.
Curated OER
Wallflowers: Adding and Multiplying Integers
Students solve word problems in which they add, subtract, multiply, and/or divide integers, identify rules and patterns for multiplying and dividing integers, create scenarios that represent each expression, and evaluate expressions.
Curated OER
Rooster's Off To See the World Number-Sense
Students recognize how numbers are used in number stories. In this Rooster's Off To See the World lesson, students participate in the story. Students complete a number activity and work on the computer to illustrate a number...
University of Minnesota
Fraction Operations and Initial Decimal Ideas
Add another strategy to the toolboxes of young mathematicians with this elementary math lesson on using number lines to add and subtract fractions.
Curated OER
Ten Sly Piranhas: A Counting Story in Reverse
Learners solve related addition and subtraction problems. In this addition and subtraction instructional activity, students use the book Ten Sly Piranhas by William Wise as the source of word problems for learners to solve.
Alabama Learning Exchange
Pat Brisson's Benny's Pennies
Learners listen to the book, "Benny's Pennies" and conduct math and language arts lessons to go along with the book. They demonstrate their ability to count pennies, understand proper sequence, and rewrite a story using different...
Curated OER
Part Part Whole
First graders solve number sentences. In this problem solving lesson, 1st graders construct addition sentences using a part part whole mat. Students demonstrate problem solving strategies using cubes.
Math Mammoth
Percent Fact Sheet
In this math worksheet, students are given 9 percentage problems that involve conversion, variables, story problems and fractions.
Curated OER
Decimals for Lower Elementary
Students investigate decimal operations, including addition and subtraction. They participate in interactive games, story problems, and math mysteries.
Curated OER
Ten Sly Piranhas: Subtraction with Goldfish Crackers
Class members listen to the William Wise book Ten Sly Piranhas and act out the story with one child playing the piranha. They use goldfish crackers (eating them to show subtraction) to demonstrate and understand equations they see...
Curated OER
The Key to Word Problems
Students learn the key words to look for in multiplication and division word problems, to help them decide which operation to use. They analyze, wrte, and solve multiplication problems.
Curated OER
Counting Back and Counting On
Read aloud your choice of books about counting on and counting back (a list is provided, or tell stories of your own). Your learners will write horizontal equations to portray what happens in the story. They build a paper chain and...
Curated OER
Dinosaur Math
Students read How to Train with a T.Rex and Win 8 Gold Medals and solve math problems. In this dinosaur math lesson, students write a math story to go with the dinosaur story. Students discuss the needed strategies. Students...
Curated OER
Relationship Between Addition and Subtraction
Young scholars are taught how to add and subtract and use number sense to solve basic math problems. In this addition and subtraction lesson, students are being taught using theories from different philosophers in education. They are...
Curated OER
The Take-Awar Bar 1
Students use an Internet tool, "The Take-Away Bar" to solve subtraction problems by breaking them into parts. They write and solve comparison problems. Students make sensible estimates and check the reasonableness of answers. They use...