Lesson Plan
Curated OER

Solving Equations with Addition and Subtraction

For Teachers 9th - 10th
Students solve equations using addition and subtraction. In this algebra lesson, students write word problems as equations and simplify the equations. They solve for the unknown using addition and subtraction.
Interactive
Curated OER

Problem Solving with Addition and Subtraction: Post Test

For Students 3rd - 5th
In this addition and subtraction worksheet, students answer multiple choice questions where they solve word problems using 2 and 3 digit numbers. Students complete 10 questions total.
Worksheet
Curated OER

Square Roots Worksheet

For Students 6th - 8th
In this square roots practice worksheet, students use their problem solving skills to solve 10 problems that require them to find square roots and multiply them.
Lesson Plan
Curated OER

Addition and Subtraction of Whole Numbers

For Teachers 4th
Fourth graders answer word problems based on the fifty states. In this math word problem lesson, 4th graders understand that differences in problems require different math operations.
Lesson Plan
Curated OER

You Be The Teacher

For Teachers 3rd - 4th
Students create their own math problems with one restriction, the answer the teacher gives them must be kept in a sealed envelope. They may make up any kind of problem they like.
Printables
K-5 Math Teaching Resources

Blank Number Lines Template

For Students K - 6th Standards
It's no secret that number lines are one of the most useful tools for elementary math teachers. Offering a series of six separate number lines of differing scales, this versatile template can be used when teaching about...
Worksheet
Curated OER

Write a Number Sentence

For Students 2nd - 3rd
For this number sentences worksheet, students learn to solve the addition and subtraction word problems by writing number sentences for each problem.
Lesson Plan
Curated OER

The Complex Numbers

For Teachers 9th - 10th
In this algebra worksheet, students solve 16 problems involving imaginary numbers. In the first three, students find the square root of 3 negative numbers in terms of i. Nine problems involve addition, subtraction, multiplication and...
Lesson Plan
Curated OER

Relationship Between Addition and Subtraction

For Teachers 2nd - 3rd
Students 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 given a...
Worksheet
Curated OER

Adding and Subtracting Integers

For Students 4th
For this online interactive integers worksheet, 4th graders solve 8 addition and subtraction integer math problems and problem solve 6 integers problems involving numbers from -20 to 20. Students check their answers online when done with...
Lesson Plan
Curated OER

Shipping on the Hudson

For Teachers 3rd - 5th
Students track movements of ships, tugboats, and barges on the Hudson River estuary in order to practice addition and subtraction skills. They solve word problems by reading and interpreting data from a table. They calculate distances...
Worksheet
Curated OER

Numeracy Problem Solving

For Students 6th
For this numeracy problem solving worksheet, 6th graders, working in groups of three, solve twenty word problems and then turn them into numerical equations.
Lesson Plan
Curated OER

Candy Addition and Subtraction

For Teachers 1st - 2nd
Students practice computation.  In this addition and subtraction math instructional activity, students count M & Ms and Skittles to answer math problems and complete a related worksheet.
Worksheet
Curated OER

Divide by a Fraction

For Students 4th - 7th
For this dividing by fractions practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
Worksheet
Curated OER

Take It One Step at a Time

For Students 3rd - 4th
In this following steps worksheet, students learn how to solve math money word problems by following steps. Students then determine the number facts for each problem and follow the steps to solve the problem.
Worksheet
Curated OER

Fact Families

For Students 2nd
In this fact families worksheet, 2nd graders add and subtract 16 math problems associated with the fact families of 13, 14, 16 and 17.
Assessment
Los Angeles County Office of Education

Assessment for the California Mathematics Standards Grade 1

For Students 1st Standards
Here is an assessment designed to test mathematicians' knowledge of writing numbers, comparing numbers, skip counting, solving addition and subtraction problems; along with measuring objects, telling time, identifying shapes, reading...
Unit Plan
1
1
Mathematics Vision Project

Module 3: Polynomial Functions

For Students 9th - 12th Standards
An informative module highlights eight polynomial concepts. Learners work with polynomial functions, expressions, and equations through graphing, simplifying, and solving. 
Assessment
Los Angeles County Office of Education

Assessment for the California Mathematics Standards Grade 5

For Students 5th Standards
Test young mathematicians' knowledge with an assessment aligned to California's fifth grade state standards. The exam covers a multitude of concepts including fractions and decimals, positive and negative numbers, measurement; and...
Lesson Plan
Curated OER

Domain: Operations and Algebraic Thinking

For Teachers K - 2nd
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
Worksheet
Curated OER

Adding and Subtracting Fractions 1

For Students 4th - 8th
In this adding and subtracting of fractions worksheet, students add and subtract fractions with unlike denominators. Students complete 16 problems total.
Worksheet
Curated OER

Adding and Subtracting Decimals 2

For Students 3rd - 6th
In this adding and subtracting decimals worksheet, students add and subtract numbers with decimals up to 4 digits. Students complete 16 problems.
Lesson Plan
Curated OER

the Whale Game

For Teachers Pre-K - 6th
Students listen to whale stories and answer addition and subtraction problems in the stories.  In this addition and subtraction lesson, students receive 20 goldfish.  Based on the story they eat the goldfish. Students write...
Worksheet
Curated OER

Rapid Addition and Subtraction

For Students 3rd - 4th
In this addition and subtraction activity, students solve 40 addition and subtraction math problems as fast as they can and be prepared to explain how they got their answers.