Discover how combinations are different from permutations. In the third installment of a 21-part module, scholars learn how to determine combinations of objects. They learn to distinguish between situations where order is important and...

This is a really cool math resource! There are nineteen different slides containing five math problems each. They are intended to be used as daily math warm ups and address skills such as, addition, problem solving, missing addends, word...

If the fractions don't have a common denominator, make them have one. Learners first read and analyze a conversation of pupils trying to add 2/5 and 1/2. They compare the process of adding fractions to the process of adding quantities...

As the school year progresses, it can be challenging for teachers to keep track of the specific math standards they've covered and those that remain to be taught. This Common Core checklist solves this problem, providing educators with a...

Solve systems of equation problems using four different methods: elimination by addition or subtraction, graphing, elimination by multiplication, and substitution. Middle schoolers are then given a series of "missions" to complete.

Students solve related addition and subtraction problems. In this addition and subtraction lesson, students use the book Ten Sly Piranhas by William Wise as the source of word problems for students to solve.

Pupils collect objects to use in a classroom store. In groups, they must place a value on each object and take turns spending their fake dollar in the store. They predict how much they can buy and use addition and subtraction to...

Students study related addition and subtraction facts. In this math lesson, students use related addition and subtraction to solve problems. Students use manipulatives to explore fact families.

Students subtract two digit numbers. They check each other's answers for accuracy.

In this subtraction worksheet, learners subtract, then check by adding. Problems are set up side by side, with the correct answer to the addition check noted for the student.

In this addition and subtraction worksheet, students complete addition and subtraction problems containing one digit numbers. Students complete 52 problems.

In this subtraction worksheet, students solve 8 subtraction problems , then check their answer by addition. Students work with a partner who coaches them through the process. Then the students switch roles. Each student solves 4...

Students study word problems and learn to identify key words to solve the problems. In this word problems lesson, students role play as detectives to find key words in addition and subtraction word problems. Students then create a poster...

Students practice the addition, subtraction, multiplication, and division of integers. They view a video clip on addition and subtraction of integers. Students observe a Web site that reviews multiplication and division of integers....

In this order of operations worksheet, students solve problems that include all four operations, parenthesis, square roots, and more. Students complete 50 problems.

Students explore addition. In this math lesson, students discover how addition and subtraction are related. Students model related addition and subtraction facts.

Young scholars apply their knowledge of addition and subtraction of money into real life situations.

Young scholars explore modes for addition.  In this K-2 mathematics lesson, students investigate the four models of addition (counting, sets, number line, and balanced equations) using dominoes.  Young scholars examine the...

First graders investigate, represent and solve problems using number facts, operations, and their properties. They solve on-step addition and subtraction number sentences and word problems using concrete materials. Students construct...

Students use five word problem solving skills to solve a variety of math word problems. They observe the teacher modelling the five steps, and in small groups complete two worksheet word problems. Students read the problem, find the...

Students solve linear equations. In this algebra lesson, students solve equations using addition, subtraction, division and multiplication. They evaluate and simplify functions.

First graders determine how numbers are made up of other smaller numbers before examining addition and subtraction. They determine the number pairs that make up a given number and determine when no other pairs can be found. They use frog...

Second graders investigate the concept of addition and subtraction while manipulating a variety of different resources. They focus upon the use of the games in order to keep student engagement. Then students are given the opportunity to...

In this story problems worksheet, students solve 5 word problems in which two and three digit numbers are subtracted. There will be regrouping.