Buffalo State
Adding and Subtracting Positive and Negative Integers
A well-rounded unit on positive and negative integers is a great addition to your middle school math class. Learners work through five activities, each focused on a different skill, before playing a Game of Life to practice the...
Curated OER
Rational Number Project
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...
Curated OER
Multiplication & Division
Helpful for building a multiplication unit that focuses on different strategies. With explanations about repeated addition and subtraction as foundations for multiplication, scaling, summaries of progression, and basic multiplication and...
Common Core, Inc.
Multi-Digit Whole Number Subtraction
A thorough exploration into subtracting multi-digit numbers, this series of lessons is an excellent way to guide learners of any skill level. With a step-by-step lesson plan and straightforward assessment tools, kids are sure to...
Arizona Department of Education
Area and Perimeter of Regular and Irregular Polygons
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other...
TED Talks
Ted: Ted Ed: What's an Algorithm?
An algorithm is a method of solving problems both big and small. Though computers run algorithms constantly, humans can also solve problems with algorithms. David J. Malan explains how algorithms can be used in seemingly simple...
E-learning for Kids
E Learning for Kids: Math: Australlia Bbq Party: Addition
Students will complete a series of learning games to practice addition with standard algorithms.
E-learning for Kids
E Learning for Kids: Math: Igloo: Multiplication
On this interactive website students practice various math skills using a real life scenario with a hockey team. Those skills include completing multiplication facts up to 100, making a list of multiples of a number, and locating factors...
Math Medics
S.o.s. Math: Polynomial Long Division
This tutorial offers a description and examples of long division using polynomials. Exercises with answers also provided.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
PBS
Pbs: Multidigit Multiplication With Standard Algorithm: The Donut Doze Off
In this Cyberchase video, Bianca has a new job decorating fresh-baked donuts. Her supervisor asked her to decorate 12 trays of donuts, but Bianca thought he meant 12 donuts. When she discovers her mistake, she uses multiplication...
Khan Academy
Khan Academy: Dividing Whole Numbers to Get a Decimal
Divide two whole numbers to get a quotient with a decimal. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Multiply Decimals 3
Multiply numbers with tenths and hundredths like 3.1x3.3 or 1.7x0.12 Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Add Decimals 3
Add larger numbers with tenths like 40.1+7.6 Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Divide Multi Digit Numbers by 2, 3, 4, and 5 (Remainders)
Practice dividing multi-digit numbers by one digit numbers with remainders.
Khan Academy
Khan Academy: Subtract Decimals 8
More challenging subtraction problems with whole numbers, tenths, and hundredths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.