Curated OER
Understanding 10: Backwards and Forwards
Help your young mathematicians completely master 10 by practicing one-to-one correspondence, number recognition, and recording numbers displayed. They make 10 with groups of two-different colored cubes and color in 10-frames to show how...
Pennsylvania Department of Education
Multiplication Using Arrays
Explore the concept of multiplication by using arrays. Classmates use arrays to gain a better understanding of multiplication. They break arrays apart to model the distributive property of multiplication over addition. The relationship...
Curated OER
Adding and Subtracting Integers
Middle schoolers use discs in order to add and subtract integers. There are manipulatives present so kinesthetic learners can access the curriculum. They also review the concept of the opposite of positive and negative numbers.
Curated OER
Big Boats Up The River
Using boats along in the Port of Albany as the focus, learners practice adding single-digit numbers and interpreting data. This lesson comes with the worksheets, resource links, and other materials to make it a worthwhile experience.
Curated OER
Arrays of Food
This lesson is based on video clip 220 from the Count on it! series, however the same problem can be posed with out the video. Learners work independently to determine the amount of dried food they will need for a camping trip. Each...
Curated OER
Multiplication: Doubling and Halving
Intended for summer school, this unit review covers basic multiplication through doubling and halving, division, fraction to decimal conversion, and word problems involving decimal numbers. Use it to warm up the class, review concepts,...
Curated OER
Whole Number Addition Level 3
In this math worksheet, students practice the addition problems while combining the addends . They write down the answers for the twelve problems.
Illustrative Mathematics
Boys and Girls, Variation 2
How many ways can you make the number 9? Use a task that has pupils thinking about the many different ways a classroom of nine can be made up of boys and girls.
Curated OER
Arithmetic: Fractions
Mathematics aces, after a warm-up activity with some easy calculations, practice solving rules of signs and powers of 10 equations. Multiplying and dividing decimals is also covered within this lesson in depth. A variety of examples and...
Curated OER
Decimal Addition
In this decimal addition instructional activity, students complete a set of 15 problems, adding both decimals and whole numbers. A website reference is given for additional activities.
Helping with Math
Subtraction: 4-digit numbers
Twenty four subtraction problems are displayed on this printable activity. All of the problems involve taking a four-digit number away from a greater four-digit number. Regrouping is required in some cases. This nifty homework assignment...
Curated OER
Addition
Explore the concept of number bonds with your young elementary students. They will become familiar with the number bonds to 10, 20, and 100, and then play games to practice these skills. This is a differentiated lesson which includes an...
Curated OER
Properties of Real Numbers
In this Algebra II worksheet, students classify numbers by naming the subset or subsets of the real numbers to which it belongs. The two page worksheet provides explanation and examples in addition to ten practice problems. Solutions are...
Curated OER
Multiplication: A Treasure Hunt to Two and Three Digit by One Digit Multiplication
Here is a math lesson which has learners practice multiplying two and three digit numbers by one digit numbers. They discuss multiplication strategies and use those strategies to play a game.
Illustrative Mathematics
Operations with Rational and Irrational Numbers
Learners complete addition and multiplication tables that include rational and irrational numbers. They also answer a series of questions about the sums and products of irrational and rational numbers. One suggested modification would be...
Curated OER
Investigation - Snack TIme
Students explore solving addition and subtraction problems. They solve real life problems. Students participate in a simulation activity to find the missing addend. They demonstrate adding and subtracting whole numbers.
Curated OER
10 More or 10 Less
Practice adding and subtracting 10 with this outer space worksheet. On the top, scholars match digits floating in stars with sums inside a spaceship. Next, they do the same with subtracting 10, connecting numbers to differences. These...
Curated OER
Add 10: Problem Solving
Pass out those counting chips and get ready to see your little learners shine. They practice adding 10 to solve 3 word problems. Because this worksheet only contains 3 problems it is perfect for whole class instruction. Use...
Curated OER
Adding and Subtracting Decimals
Help your 4th through 6th graders add and subtract whole numbers with decimals. Using grid paper and a Promethean Board, this resource will provide material for practicing and reviewing this concept.
Curated OER
Dividing Using Groups
Three simple slides show the relationship between division and multiplication. Items are grouped into equal sets based on the division problem presented, then related to repeated addition and multiplication.
Curated OER
Decimals: Collaborative Lesson
Students explore mathematics by participating in a group activity. In this number value lesson, students identify the uses for decimals and how to best estimate whole numbers based on decimals and fractions. Students collaborate with...
Mathematics Vision Project
Module 6: Congruence, Construction, and Proof
Trace the links between a variety of math concepts in this far-reaching unit. Ideas that seem very different on the outset (like the distance formula and rigid transformations) come together in very natural and logical ways. This...
Raytheon
Adding and Subtracting Decimals
For this adding and subtracting decimals instructional activity, students add and subtract numbers with decimals in word problems. Students complete 12 word problems.
Northern Arizona University
Adding and Subtracting Fractions
Pattern blocks and shapes demonstrate how to add and subtract fractions. By aligning blocks with different shapes, learners figure out how to create a whole, and then how to add and delete parts from that whole.