Lesson Plan
Curated OER

Study Buddies: Counting Back Tens and Ones

For Teachers 1st - 2nd
In this math worksheet, young scholars will work with a coach to solve a problem in which they must subtract by counting back by tens and ones. Students will follow a step-by-step process and notes are provided for the coach.
Lesson Plan
Curated OER

I'll Halve S'More, Please!

For Teachers 3rd - 5th
Students describe a fraction in terms of sharing parts of a whole. They understand the meaning of the parts of a fraction and add and subtract like fractions. They apply fractions to problem situations and recognize and use equivalent...
Lesson Plan
Alabama Learning Exchange

The Mean, Median, and Mode Chain Gang

For Teachers 3rd - 6th Standards
Students analyze a set of data. They work in cooperative groups and use chain links to identify the mean, median, and mode of the chain.
Worksheet
Curated OER

Name For Numbers

For Students 2nd
In this same number facts worksheet, 2nd graders use either addition or subtraction to solve 8 math problems and then place the two math problems that match the numbers at the bottom of 4 trees on the lines provided.
Worksheet
Helping with Math

Subtraction: 4-digit numbers

For Students 3rd - 5th Standards
Twenty four subtraction problems are displayed on this printable worksheet. All of the problems involve taking a four-digit number away from a greater four-digit number. Regrouping is required in some cases. This nifty homework...
Lesson Plan
Curated OER

Understanding Whole Numbers

For Teachers 4th
In this understanding whole numbers worksheet, 4th graders use a computer program for instruction, then answer 16 problems about addition and subtraction.
Worksheet
Curated OER

Enjoying Millions- Working with Millions

For Students 4th
In this working with millions worksheet, 4th graders look for patterns when working with millions, and use mental math to determine a number. They add and subtract numbers from a number in the millions before using a set of clues to...
Lesson Plan
Pennsylvania Department of Education

Adding and Subtracting Rational Numbers to Solve Problems

For Teachers 9th - 12th
Young scholars explore the concept of probability.  In this probability lesson, students use area to determine probability.  Young scholars use charts and spinners to help determine the probability of events such as flipping a...
Worksheet
Curated OER

Subtracting 2-Digit Numbers Mentally

For Students 3rd - 6th
In this subtraction worksheet, students subtract 2 digit numbers from each other using mental math. Students complete 12 problems and 9 comparison problems.
Worksheet
Curated OER

Two-Digit Numbers Ending in 8 or 7

For Students 1st - 2nd
In this mathematics instructional activity, students circle the dots to form a complete ten and compare their problem to the one with just ones' digits. Then they add each problem and write down the corresponding problem with just the...
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...
Worksheet
Curated OER

Complex Numbers

For Students Higher Ed
For this complex numbers worksheet, students simplify 9 problems involving the addition, subtraction, multiplication, and division of complex numbers.
Lesson Plan
Pennsylvania Department of Education

Adding and Subtracting Three-Digit Numbers by Jumping

For Teachers 2nd
Second graders use data to graph information and draw conclusions. In this lesson plan on data analysis, 2nd graders practice gathering, sorting, comparing, and graphing data. Students differentiate data that can and cannot change over...
Worksheet
Curated OER

Ordinal Numbers and Roman Numerals

For Students 3rd - 5th
In this ordinal numbers worksheet, learners color the ordinal numbers in people and write the ordinal number for different one and two digit numbers. Students complete 10 problems.
Worksheet
Curated OER

Same and Different

For Students 1st - 2nd
For this mathematics learning exercise, students first complete the tens place and then add the rest. Then they continue the patterns and compare each column. Students also fill in the missing addends and solve various word problems by...
Worksheet
Curated OER

The Math Lesson 7

For Students K - 2nd
In this addition and subtraction practice worksheet, students use their problem solving skills to solve 200 problems that require them to add and subtract single digit numbers.
Lesson Plan
Curated OER

Pet overpopulation-Dogs and Cats Can't Add or Subtract, But They Sure Can Multiply

For Teachers 5th - 8th
Learners explore pet overpopulation.  In this character development lesson, students solve math story problems to determine how many kittens can be produced by one unspayed cat. Learners discuss the consequences of pet...
Lesson Plan
Curated OER

Subtraction With Integers

For Teachers 6th - 8th
This thorough introduction to the concept of subtracting negative integers walk learners through the necessary steps using teacher modeling and guided practice. Number lines and various word problems are used to support understanding of...
Lesson Plan
Curated OER

Fractions Everyday

For Teachers 4th - 6th
Students investigate fractions through interactive videos and hands-on activities and class made models.
Lesson Plan
Curated OER

Counting Back and Counting On

For Teachers Pre-K - 2nd
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...
Lesson Plan
Curated OER

Expressions and Equations

For Teachers 4th - 6th
Develop understanding of algebraic expressions and equations by having your class define examples of each. The class discusses how parentheses affect the order of operations and learn how to solve for x. A variety of examples are used.
Worksheet
Curated OER

Data Analysis

For Students 8th - 11th
In this data analysis instructional activity, learners solve and complete 6 different problems that include using various types of data analysis. First, they create a stem-and-leaf plot of the ratios shown at the top and determine the...
Interactive
CK-12 Foundation

Subtraction of Fractions: Fragmented Fractions

For Students 5th - 8th Standards
An interactive challenges scholars to subtract mixed numbers. Pupils answer questions—multiple-choice, fill in the blank, and true or false—with help from virtual fraction strips. The practice closes with a discussion. 
Interactive
CK-12 Foundation

Expression Evaluation with Different Denominators: Adding Mixed Fractions of Water

For Students 6th - 8th Standards
An interactive challenges mathematicians to add mixed fractions with unlike denominators. Five questions—fill-in-the-blank and multiple-choice—build from one to the next leading the way to an open discussion about denominators and...

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