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University of Colorado
Solving a Mixed Up Problem
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...
CK-12 Foundation
Linear Systems with Addition and Subtraction: Fill in the Boxes 1
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...
CK-12 Foundation
Linear Systems with Addition and Subtraction: XYZ Tiles
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...
CK-12 Foundation
Linear Systems with Addition and Subtraction: Fill in the Boxes 2
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...
CK-12 Foundation
Properties of Real Number Addition: The Secret of Subtraction
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...
CK-12 Foundation
Simplify Sums or Differences of Single Variable Expressions: Addition and Subtraction of Like Terms
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.
Perkins School for the Blind
More or Less
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...
Curated OER
The School Store
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...
Curated OER
Carry and Borrow
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...
Curated OER
Fact Families
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.
Curated OER
Mixed Operations
In this mixed operations worksheet, students use the order of operations rule to help them solve the multiplication, division, addition, and subtraction problems.
Curated OER
Fraction Facts
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...
Curated OER
Addition
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....
Curated OER
Number Sense
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.
Curated OER
Digit and Symbol Cards
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...
Curated OER
Not So Snappy 1
In this mathematical operations (i.e., addition, subtraction, multiplication, division) activity, students solve 6 word problems demonstrating their understanding of the concept.
Curated OER
Not So Snappy 3
In this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, students solve 7 word problems demonstrating their understanding of the concept.
Curated OER
Not So Snappy 2
For this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, learners solve 5 word problems demonstrating their understanding of the concept.
Curated OER
Weigh Out the Algebra
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.
Curated OER
Cartoon Fractions
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,...
Curated OER
Adding and Subtracting Up to 5
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...
Curated OER
Names for Numbers
In this mathematics worksheet, 1st graders identify various numbers and use counters to illustrate each fact given. Then they complete the math sentences correctly.
Curated OER
Rooster's Off to See the World
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...
Curated OER
Positive and Negative Numbers
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.