Lesson Plan
University of Colorado

Solving a Mixed Up Problem

For Teachers 6th - 9th
Begin the process of adding and subtracting spectra. Having a basic understanding of occultation events, pupils begin the pursuit to determine what a found atmosphere might contain. Learners work with two graphs and calculate what the...
Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: Fill in the Boxes 1

For Students 8th - 10th Standards
Eliminate a color by dragging shapes. The interactive provides a graphical color display that allows for pupils to solve a linear system by elimination. Learners combine figures following set rules for positive and negative shapes. The...
Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: XYZ Tiles

For Students 8th - 10th Standards
Cover it up to reveal the values of variables. Using arrangements of colored tiles representing algebraic expressions, pupils layer them over each other to determine the values of variables. The procedure models the elimination method in...
Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: Fill in the Boxes 2

For Students 8th - 10th Standards
Systematically combine shapes to arrive at one solution. The resource models a system of linear equations using colored shapes. Pupils follow rules to combine circles and squares to add the two equations together, resulting in one...
Interactive
CK-12 Foundation

Properties of Real Number Addition: The Secret of Subtraction

For Students 6th - 8th Standards
Learners sometimes struggle to understand the concept of adding and subtracting integers. Help them see the why behind their answers using the interactive number line. The values change as individuals adjust the number line for each new...
Interactive
CK-12 Foundation

Simplify Sums or Differences of Single Variable Expressions: Addition and Subtraction of Like Terms

For Students 7th - 9th Standards
Investigate the process of combining like terms using an interactive animation. Scholars tackle simplifying expressions by manipulating rectangles that represent the terms. They add and subtract terms to arrive at the result.
Lesson Plan
Perkins School for the Blind

More or Less

For Teachers 1st - 6th
The concept of more or less is one that needs to be mastered prior to learning other concepts such as quantitative analysis, addition, or subtraction. This activity provides several ways to teach learners with low or no vision to...
Lesson Plan
Curated OER

The School Store

For Teachers 1st - 2nd
Students choose between the operations of addition or subtraction to solve a real life problem. In this addition and subtraction instructional activity, students make a chart of items sold in the school store. Students then work in teams...
Lesson Plan
Curated OER

Carry and Borrow

For Teachers 2nd
Second graders complete basic math computations. In this addition and subtraction lesson, 2nd graders learn how to carry and borrow numbers when adding and subtracting. Students learn a carrying song to help them remember. Students...
Worksheet
Curated OER

Fact Families

For Students 1st - 2nd
For this addition and subtraction worksheet, students analyze a picture of sets of dots in two groups. Students write the addition and subtraction fact families to match the picture.
Worksheet
Curated OER

Mixed Operations

For Students 4th - 5th
In this mixed operations worksheet, students use the order of operations rule to help them solve the multiplication, division, addition, and subtraction problems.
Lesson Plan
Curated OER

Fraction Facts

For Teachers 6th - 8th
Learners explore the concept of fractions. For this fractions lesson, students perform basic operations such as addition and subtraction with fractions. Learners play a game on the computer called 'Fraction Four' that gives students...
Lesson Plan
Curated OER

Addition

For Teachers K - 2nd
Students study basic number addition. They define terms together at the board: addition, addend, sum. They discuss key words for addition: in all, altogether, total, sum; and key words for subtraction: how many more, difference, fewer....
Lesson Plan
Curated OER

Number Sense

For Teachers 8th
Eighth graders participate in a lesson that is concerned with reviewing basic math concepts using the four operations. The activity is composed of a math game that is played by them.
Worksheet
Curated OER

Digit and Symbol Cards

For Students 1st - 2nd
In this math worksheet, students cut apart 15 cards, each containing one digit from 0 to 9 or the addition, subtraction, multiplication or division signs. There are also cards for the equal sign and greater than sign. There are no...
Worksheet
Curated OER

Not So Snappy 1

For Students 6th - 8th
In this mathematical operations (i.e., addition, subtraction, multiplication, division) activity, students solve 6 word problems demonstrating their understanding of the concept.
Worksheet
Curated OER

Not So Snappy 3

For Students 7th - 9th
In this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, students solve 7 word problems demonstrating their understanding of the concept.
Worksheet
Curated OER

Not So Snappy 2

For Students 5th - 8th
For this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, learners solve 5 word problems demonstrating their understanding of the concept.
Lesson Plan
Curated OER

Weigh Out the Algebra

For Teachers 9th - 11th
Learners solve linear equations. In this algebra instructional activity, students use manipulative's to see the steps taken when solving linear equations. They solve using addition, subtraction, multiplication and division.
Lesson Plan
Curated OER

Cartoon Fractions

For Teachers 5th - 8th
Students explore mathematics by viewing cartoons. For this math functions lesson, students read several "Peanut" cartoons on their worksheets as they solve fraction problems and compare them to the comic strip. Students utilize addition,...
Worksheet
Curated OER

Adding and Subtracting Up to 5

For Students K - 1st
Basic addition and subtraction need to be mastered before moving on to more challenging mathematics. This resource provides learners with one addition and one subtraction problem. They read the explanation included to learn how to solve...
Lesson Plan
Curated OER

Names for Numbers

For Teachers 1st
In this mathematics worksheet, 1st graders identify various numbers and use counters to illustrate each fact given. Then they complete the math sentences correctly.
Lesson Plan
Curated OER

Rooster's Off to See the World

For Teachers Pre-K - K
Young learners listen to the book Rooster's Off to See the World, and complete simple math activities using the book. In this simple math lesson, students read and list the animals in the book. They arrange animal picture squares using...
Lesson Plan
Curated OER

Positive and Negative Numbers

For Teachers 6th - 9th
Pupils use blocks and markers to illustrate the processes of adding, subtracting, multiplying and dividing integers. In this mathematics lesson plan, learners use Algebra blocks to demonstrate multiplying polynomials.