Lesson Plan
Curated OER

Tetrahedral Dice

For Teachers 6th - 9th Standards
Put those thinking hats on and look at all the possible outcomes from rolling two different four-sided dice. The challenge in this problem is finding all the combinations when adding and subtracting the numbers from each die and creating...
Lesson Plan
West Contra Costa Unified School District

Simplify Expressions and Solve Equations Using Two-Column Proofs

For Students 8th - 10th Standards
Increase understanding of the algebraic properties and their importance. Scholars justify their steps as they simplify expressions and solve equations. They formalize their work as two-column proof.
Worksheet
Curated OER

One More, One Less

For Students 1st - 2nd
In this addition and subtraction worksheet, students solve 6 problems in which the number one is added or subtracted from other numbers in illustrated story problems.
Worksheet
Curated OER

Two-Digit Addition and Subtraction No Regrouping (A)

For Students 2nd - 4th
In this addition and subtraction worksheet, students find the sums and differences by adding and subtracting two-digit numbers with no regrouping. Students solve 36 problems.
Lesson Plan
Curated OER

Two-Digit Addition and Subtraction No Regrouping (B)

For Teachers 2nd - 4th
In this adding and subtracting two-digit numbers worksheet, students find the sums and differences with no regrouping. Students solve 36 problems.
Lesson Plan
Curated OER

Two-Digit Addition and Subtraction (B)

For Teachers 4th - 6th
In this adding and subtracting two-digit numbers worksheet, learners find the sums using mixed regrouping and no regrouping. Students solve 49 problems.
Lesson Plan
Curated OER

SPIRIT 2.0 Lesosn: Adding and Subtracting Integers

For Teachers 6th - 8th Standards
Six pages prepare you to introduce your math stars to the addition and subtraction of positive and negative numbers. They drive a robot back and forth on an actual number line to represent the operations. If you don't have access to a...
Lesson Plan
Houghton Mifflin Harcourt

Introducing the Concept: Adding and Subtracting With Negative Integers

For Teachers 5th - 7th Standards
A basic narrative is outlined for teaching a lesson on the addition and subtraction of integers. Using a number line, you can demonstrate how to find the sum of a positive and negative integer. On the right side of the page are links to...
Lesson Plan
Curated OER

Adding and Subtracting Integers

For Teachers 7th
Seventh graders review the concept of integers and how to combine them. They use the number line in different situations for the visual needed to see how adding can be done. Then students practice with numerical expressions.
Lesson Plan
Curated OER

Adding Fractions with Unlike Denominators

For Teachers 4th - 5th
Students explore why denominators need to match before adding (or subtracting) a fraction. They use unmarked fraction circles and marked fraction bars, to discover a method to add fractions with unlike denominators using equivalent...
Worksheet
Curated OER

Add and Subtract Money - Word Problems

For Students 3rd
In this simple word problem activity, 3rd graders solve 4 problems using addition or subtraction, showing their work in the spaces provided. An answer key is provided.
Worksheet
Curated OER

Addition and Subtraction of Polynomials

For Students 7th - 8th
In this addition and subtraction of polynomials worksheet, students simplify ten polynomial expressions by adding or subtracting whole numbers and variables with exponents.
Worksheet
Curated OER

The Summer School Math Worksheets-Multiplication, Division, Fractions Level 5

For Students 5th - 7th
For this summer school math worksheet, learners complete 100 multiplication problems in which 3 digit numbers are multiplied by 2 digit numbers. Students also solve 100 problems in which simple fractions with unlike denominators are...
Worksheet
Curated OER

Later and Earlier

For Students 2nd - 3rd
In this time worksheet, students study 20 different clocks. Students write the time each clock shows now, the time it would show 25 minutes later, the time it would have shown 55 minutes earlier, and the time it would show 2 hours 35...
Worksheet
Curated OER

Addition and Subtraction of Rational Expressions

For Students 9th
In this rational expressions worksheet, 9th graders solve and complete 15 different problems that include adding and subtracting rational expressions. First, they define Least Common Multiple to get a common denominator in an equation....
Handout
Math Centre UK

Fractions

For Students 3rd - 5th Standards
Reinforce fraction instruction with an informative worksheet equipped to provide independent practice, as well as guidance and modeling. Support is provided to boost proficiency in finding equivalent fractions, and adding,...
Lesson Plan
NTTI

I'll Halve S'more Please!

For Teachers 3rd - 5th Standards
There is a lot to learn about fractions, and this is a fun way to do it! Individuals participate in a Cyberchase activity to describe a fraction in terms of sharing parts of a whole. They determine the meaning of the parts of a fraction,...
Worksheet
Curriculum Corner

Fraction Brochures

For Students 4th - 6th Standards
Make fractions fun and interesting by using a brochure form. Young mathematicians practice and gain a better understanding of how to add and subtract fractions, simplify fractions, and find LCD (least common denominator). The resources...
Lesson Plan
Curated OER

Number Operations

For Teachers 3rd - 4th
Inject fun into your math review! Pupils review basic math operations with decimals as well as addition and subtraction with simple fractions. In this number operations lesson, students work in groups to create a game for the math skill...
Printables
Curriculum Corner

7th Grade Math Common Core Checklist

For Teachers 7th Standards
With so many math standards to fit into a school year, it can be difficult keeping track of what you have and have not covered. This collection of Common Core checklists allows you to maintain a running record of when each...
Assessment
Los Angeles County Office of Education

Assessment for the California Mathematics Standards Grade 3

For Students 3rd Standards
Assess scholars' knowledge with a 22-page assessment that covers place value, patterns, probability, estimation, measurement, geometric figures; and their ability to add, subtract, multiply and divide proficiently. 
Unit Plan
Curated OER

Rational Number Project

For Teachers 4th - 6th Standards
Infuse your unit on fractions, decimals, and operations with a thorough module about rational numbers. With a teaching guide, learner examples, templates for instruction, and lesson rationale, the module is a solid way to...
Worksheet
1
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K5 Learning

Mixed Practice Word Problems #5

For Students 2nd - 4th Standards
Six word problems make up this mixed practice worksheet. Pupils work with money, adding, subtracting, multiplying, and dividing using numbers up to 250. 
Worksheet
Curated OER

Amusement Park Basic Word Problems

For Students K - 2nd
An interesting set of addition and subtraction word problems awaits your eager learners. This learning exercise includes 4 amusement park themes problems to solve.