CK-12 Foundation
Ck 12: Inequalities With Addition and Subtraction of Fractions
[Free Registration/Login may be required to access all resource tools.] CK12: Inequalities with Addition and Subtraction of Fractions
Illustrative Mathematics
Illustrative Mathematics: 1.oa Link Cube Addition
This complete lesson plan has students answer word problems using addition and subtraction within 20.
Illustrative Mathematics
Illustrative Mathematics: Cave Game Subtraction
The purpose of this task is for students to practice creating and memorizing subtraction equations while focusing on missing addends. After modeling the activity with the whole class, this game would be perfect for centers and small groups.
CK-12 Foundation
Ck 12: Trigonometry: Sine Sum and Difference Formulas
[Free Registration/Login may be required to access all resource tools.] Sine of a sum or difference related to a set of cosine and sine functions. Here you'll learn to rewrite sine functions with addition or subtraction in their...
Oswego City School District
Regents Exam Prep Center: Solving Systems Using Addition or Subtraction
Three examples are used to demonstrate solving a system of linear equations algebraically using addition and subtraction. The examples cover different situations that occur with the coefficients of the variable terms. Includes several...
University of Texas
Inside Mathematics: Incredible Equations [Pdf]
This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction.
Ducksters
Ducksters: Kids Math: Solving Algebra Equations With Addition and Subtraction
Kids learn about Solving Algebra Equations with Addition and Subtraction. Add and subtract from both sides. Example math problems are shown on page.
CK-12 Foundation
Ck 12: Algebra Ii: Addition and Subtraction of Polynomials
[Free Registration/Login may be required to access all resource tools.] Here you'll learn how to add and subtract polynomials, as well as learn about the different parts of a polynomial. Practice problems are also included.
Purple Math
Purplemath: Adding Polynomials
Demonstrates how to add polynomials using both the horizontal and vertical formats.
University of Regina (Canada)
University of Regina: Math Central: Intelli Gum: A Success Story
Introduce polynomial operations to your middle school students using the highly engaging story of ?IntelliGum?. This one-of-a-kind gum, when chewed regularly, and in appropriate quantities, will make you smarter. As part of this creative...
Shodor Education Foundation
Shodor Interactivate: Estimator Quiz
This activity allows the student to practice estimating the results of addition multiplication and percentage problems. The activity has 3 levels of challenge.
Books in the Classroom
Carol Hurst's Children's Literature Site: Computation and Picture Books
This sample chapter from Hurst's book Picturing Math is an excellent resource for using picture books and activities for learning computation.
University of Texas
Inside Mathematics: Pocket Money [Pdf]
This task challenges a student to demonstrate fluency in adding and subtracting whole numbers.
Khan Academy
Khan Academy: Add and Subtract Fractions Word Problems
Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Richland Community College
Operations With Matrices
This site has an explanation for many operations of matrices, including equality, addition, subtraction, multiplication, and identity.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Self Check Quiz on Matrices
Learners demonstrate comprehension of advanced mathematical concepts in Algebra II. The questions check understanding on matrices. Topics include matrix addition, subtraction, and multiplication.
Alabama Learning Exchange
Alex: Get It Straight Mr. Decimal!
Students will review addition and subtraction of decimals with a hands-on, cooperative small group experience. They will be placed in small groups and solve problems on individual whiteboards. This lesson plan was created as a result of...
Khan Academy
Khan Academy: Represent Multi Step Word Problems Using Equations
Represent multi-step word problems using equations with a letter standing for the unknown quantity. Equations include addition, subtraction, multiplication, and division. Students receive immediate feedback and have the opportunity to...
Arcademics
Arcademics: Four Wheel Fracas
Multiplayer math game where four wheelers race by solving algebra one-step addition and subtraction problems.
Better Lesson
Better Lesson: Math Centers Review Previous Skills
Students will be able to independently practice graphing, teen numbers, and addition.
University of Texas at Austin
University of Texas: Elementary Math Club: Number Paths
Learners explore connections between addition, subtraction, and multiplication. In addition, students review place value and learn about the distributive law. The lesson plan includes an overview and a lesson toolkit.
Illustrative Mathematics
Illustrative Mathematics: 2.nbt How Many Days Until Summer Vacation?
This lesson plan has students solving a real world word problem using addition or subtraction.
Other
Sumdog Teacher Portal: One More, One Less
This engaging lesson plan introduces students to basic addition and subtraction by adding or subtracting one. Teachers can create a free Sumdog account and usernames for their students to practice the skills through online learning games.
Illustrative Mathematics
Illustrative Mathematics: Fact Families
As a whole class, the teacher presents students with 3 numbers on cards, such as 5, 8, and 3. The teacher asks the students to find all the ways the numbers can be put together in addition or subtraction sentences. This lesson includes...
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