Interactive
CK-12 Foundation

Mental Math to Multiply by Whole Number Powers of Ten: The Rule for Tens

For Students 6th - 8th Standards
Eight questions challenge scholars to use mental math while multiplying whole numbers by powers of 10. A tool with bouncing decimals demonstrates how and where the decimal moves. Question types include several multiple-choice, a...
Lesson Plan
For the Teachers

$1 Math

For Teachers 2nd - 7th Standards
Captivate your class by having them find the value of their names, different zoo animals, musical instruments, etc.,with a mental math lesson plan. Using the coding formula listed, children learn to fluently estimate and...
Interactive
CK-12 Foundation

Mental Math to Divide by Whole Number Powers of Ten: Mental Math to Divide Decimal Powers of Ten

For Students 6th - 8th Standards
Boost mental-math skills with an interactive that focuses on dividing whole numbers by powers of 10. Mathematicians solve five fill-in-the-blank and multiple-choice questions with help from a moveable decimal point in four example...
Worksheet
Mental Arithmetic

Number Bonds to 10

For Students K - 2nd Standards
First graders solve the sums up to 10 using the mental math strategy of number bonding. Thirty different addition facts on the worksheet allow for plenty of practice.
App
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Oddrobo Software

King of Math: Full Game

For Students 3rd - 8th Standards
All hail the king! Young mathematicians put their skills to the test as they strive to become the king of math.
PPT
DataWorks

4th Grade Math: Multi-Step Word Problems

For Students 4th Standards
Solving word problems requires reading comprehension and math computation. Through an interactive slideshow presentation, fourth graders observe and follow each step toward solve multiplication and division word problems. 
Lesson Plan
Beacon Learning Center

Spotted Stones Linked Just Right

For Teachers 1st - 2nd Standards
Discover how to play the game of dominoes using mental math skills to solve equations that earn points. Pupils become fast critical thinkers in determining which unknown addend tally up points in their favor.
Interactive
Arcademics

Canoe Penguins

For Students 4th - 6th Standards
Scholars compete in a canoe race that challenges them to multiply two-digit numbers. The faster they solve equations, the faster their canoe makes it to the end. 
Lesson Plan
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Delaware Math Cadre Elementary Committee

Operations and Algebraic Thinking

For Teachers 4th Standards
How to use the relationship between multiplication and division to solve math word problems is the focus of the lesson presented here. In it, fourth graders work in groups to solve problems posed by the teacher. Then, each group is given...
Lesson Plan
Curated OER

Real World Systems of Linear Equations

For Teachers 7th - 10th
Students solve systems of equations with fluency. In this algebra lesson, students graph, use elimination and substitution to solve systems of equations. They identify the point of intersection using algebra.
Lesson Plan
Curated OER

Representing the Unknown

For Teachers 6th - 8th
Student use mental math to solve linear equations. In this algebra lesson, students solve one and two steps equations. They write expressions using variables to identify the unknown.
Lesson Plan
Curated OER

Profitable Soda Stand

For Teachers 8th - 10th
Am I making any money? Help learners determine if their fictitious soda stand is turning a profit. They graph linear equations using the slope and y-intercept and identify the best price to use to sell soda. They identify the domain and...
Lesson Plan
Scholastic

Adding and Subtracting Ten

For Teachers K - 2nd Standards
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day lesson plan series begins with learners using ten-frames and hundreds charts to recognize patterns when...
Worksheet
Math Mammoth

Distributive Property

For Students 7th - 8th
In this math activity, students are given 30 problems to solve involving the distributive property, variables, parentheses, and area problems. The final set of problems asks students to solve problems mentally, without writing them down,...
Lesson Plan
Curated OER

The Nuts and Bolts of a Mathematical Expression

For Teachers 4th
Fourth graders complete a worksheet that asks them to order operations within a mathematical expression. students evaluate the expressions in the correct order using mental math and paper. The results are recorded on the worksheet.
Lesson Plan
Curated OER

Multiplying and Dividing Decimals

For Teachers 5th - 6th
Division with decimals is explained using prior knowledge of powers of 10 and how to convert both sides of a division problem using this knowledge. The class works together through reading and setting up an equation for a word problem....
Lesson Plan
Curated OER

Using Concept Maps to Design 3D Spheres

For Teachers 9th - 12th
Students create three dimensional shapes using concept maps. In this geometry lesson, students investigate the impact of mental schemas on humans. They collect data on this topic and plot their data on a coordinate plane.
Lesson Plan
Curated OER

Two-Digit Subtraction With Regrouping

For Teachers 2nd - 3rd
Students practice their subtraction skills by solving 2 digit subtraction equations the teacher lists on the board. In this subtraction with regrouping lesson, students use the regrouping method to solve the 2-digit subtraction equations.
Lesson Plan
Curated OER

Topsy-Turvy Math With Rational Numbers

For Teachers 4th
Fourth graders complete a worksheet. As a whole class, 4th graders hear a lecture and complete a worksheet on factors, multiplicative inverses and reciprocals, finding the quotient of two fractions and the division of fractions to...
Lesson Plan
Curated OER

Counting Back and Counting On

For Teachers Pre-K - 2nd
Read aloud your choice of books about counting on and counting back (a list is provided, or tell stories of your own). Your learners will write horizontal equations to portray what happens in the story. They build a paper chain and...
Worksheet
Math Salamanders Ltd.

Subtraction Two Digit Numbers Sheet 2

For Students 1st - 3rd Standards
In this subtraction worksheet, students subtract to solve the two-digit horizontal equations.
Lesson Plan
Curated OER

Is Your Square Complete?

For Teachers 9th - 12th
Students practice solving quadratic equations using a form called Complete the Square.
Lesson Plan
Curated OER

Number Line Math

For Teachers 2nd
Second graders use a number line to practice subtraction.  In this subtraction instructional activity, 2nd graders use a number line to count backwards.  Students participate in mad math activities and solve problems.
Lesson Plan
Curated OER

Carpet

For Teachers 4th - 5th
Students complete activities for geometric shapes and multiplication. For this multiplication lesson, students watch a video about carpets and square foot multiplication problems. Students then work in pairs to solve the main problem in...