Curated OER
M&M: Multiplication Madness
Students analyze the multiplication facts from zero to ten in the ten lessons of this unit. The concepts of mental multiplication and solving word problems are important components of this unit.
Curated OER
Smart Doubling
Second graders use mental math in calculations involving addition and subtraction. They study doubles facts to work out addition problems mentally using part and or whole reasoning.
Curated OER
The Part-adder 1
Second graders investigate the addition of whole numbers. They mentally perform calculations involving addition and subtraction. They make sensible estimates and check the reasonableness of answers.
Curated OER
Waste Audit
Young scholars engage in a lesson that is concerned with the concept of mental math. They perform calculations as following: recognizing a half, three quarters, and tenths. Students are also challenged to extend skills to making...
Curated OER
The Part-Adder 2
Third graders use mental-math strategies to solve two-digit plus two-digit addition problems. They observe and discuss online demonstrations, solve word problems as a class, and independently solve problems and describe their solutions...
Curated OER
The Right Time
Students compute and estimate using mental mathematics, paper-and-pencil methods, calculators, and computers. They measure and compare quantities using appropriate units, instruments and methods. They utilize worksheets imbedded in this...
Curated OER
Mathematical Diagrams
In this geometry worksheet, students calculate the distance between two cities, trying to find the shortest distance. There are 30 questions with an answer key.
Illustrative Mathematics
Finding a 10% increase
A quick problem to test your mathematicians' knowledge on percent increase. Two different solutions are provided, mental math and computing. Ask your learners to include a description of what they did to supplement their answer.
Education Development Center
Language of Algebra
Don't rush into algebra, let learners visualize, guess, and predict their way to a successful math career. The introductory unit incorporates beginner algebraic concepts with shapes instead of variables. Young mathematicians use a...
EngageNY
Overcoming a Second Obstacle in Factoring—What If There Is a Remainder?
Looking for an alternative approach to long division? Show your classes how to use factoring in place of long division. Increase their fluency with factoring at the same time!
EngageNY
One-Step Equations—Addition and Subtraction
Just one step is all you need to find success in solving equations. The 27th installment in a series of 36 teaches how to solve one-step equations involving addition and subtraction. Tape diagrams help future mathematicians in this task.
Alabama Learning Exchange
Yummy Apples!
Young learners listen to a read aloud of Gail Gibbons book, Apples and the story A Red House With No Windows and No Doors. They compare characteristics of a number of kinds of apples, graph them and create a apple print picture. Learners...
Curated OER
Putting On Armor
Seventh graders are read the story "EMS Code Blue" and asked to share what they would do in the different situations. As a class, they discuss the importance of getting help for mental or social problems and are given a list of resources...
Curated OER
Block It Game
Learners use problem solving strategies such as guess and check and visualization to play the game. They use mental mathematics to decide on the placement of pattern blocks and look for patterns.
Curated OER
Which Quadrilateral Is It?
Young scholars prove conjectures about geometric figures on the plane or in space using coordinate geometry. They develop fluency in operations with real numbers, vectors and matrices using mental computation or paper-and-pencil...
Curated OER
Sixth Grade Mathematics Test
In this math worksheet, 6th graders complete multiple choice questions about number sentences, composite numbers, angles, and more. Students complete 30 questions.
Curated OER
Saving Money Through Mathematics
Third graders discuss light sources and collect data about energy sources. They compare data and create a multiple line graph showing energy used by light sources for each student in the group. They present their graphs and write a...
Illustrative Mathematics
The Sign of Solutions
Positive or negative, zero or no solution, are all possibilities for the solution of a linear equation. Here the resource gives examples of linear equations in one variable and their type of solutions. The resource comes with commentary...
Missouri Department of Elementary
Putting on Armor
Middle schoolers learn how to protect themselves from risky behaviors with a lesson that has them role play several scenarios and demonstrate ways that they might do to stay safe. Class members then use what they have learned to build a...
Curated OER
Grocery Store Problem Solving
Third graders practice mathematical problem solving skills. In this problem solving lesson, 3rd graders develop mathematical problem solving skills using real-world examples.
Curated OER
Ratios, Proportions and Percents
Fifth graders complete 3 activities centered around percents. For this ratios, proportions and percents lesson, 5th graders create designs on grid paper that illustrate a variety of percents, solve percent problems mentally, and use...
Curated OER
WINDMILL POWER
Students study operations with real numbers using mental computation or paper-and-pencil calculations. They judge the reasonableness of numerical computations and their results. They set up and solve proportions for direct and inverse...
Curated OER
Calculator
In this mathematical calculations learning exercise, 4th graders complete 12 multiplication problems by using a calculator. Students also develop an estimate for these problems.
Curated OER
The Brain Teaser Five Pack
In this critical thinking worksheet, students explain in their own words the answers to 5 mentally challenging brain teasers asked on the worksheet.