Students explore the concept that to solve some problems, they may need to undo the key actions in the problem. This strategy is called working backwards asking the appropriate questions.

Students use pattern blocks to help them complete fraction problems. In this fraction lesson plan, students complete problems on worksheets provided.

Students demonstrate fraction symbols. In this fractions instructional activity, students use paper strips to represent various fractions. Students then use fraction circles to compare various given fractions.

Students complete computer activities about estimating if items are more or less than a given amount. In this estimation lesson plan, students also estimate measurements around the classroom.

Learners use four different computer estimation applets with several classroom estimation activities.

Fourth graders round to the thousands place using a rhyme.

Students construct a 1/80th scale model of the interior of the KAO aircraft, or lay out a full-scale mock-up in their classroom or auditorium. they calculate the sizes of various sections of the cabin.

Students engage in a classroom shopping adventure to search for the best bargains.

In this math activity, students solve the problems that use the game of BINGO in order to improve skills of working with mixed fractions.

Fourth graders using the idea of "how many more squirts" fill a container to develop multiplicative thinking. They also investigate the idea of conservation of volume when working with oddly shaped containers. They attempt to use...

In this math activity, learners practice finding the solutions to the multiplication problems in one digit. They must be familiar with the tables to complete the questions.

Students discuss the contributions of various ethnic groups during World War II prior to visiting the George Bush Gallery of the Pacific War. After the visit, they interview veterans about prejudice during the war or listen to a guesst...

Fourth graders reasearch the history of the Pony Express on the internet or they can use books from the school or public library. They write a one-page story which incorporates their research. They share their stories with the class by...

The purpose of this task is to give students a chance to work creatively with three of the four fundamental arithmetic operations (addition, subtraction, and multiplication). It is well suited for helping students develop fluency with...

[Free Registration/Login may be required to access all resource tools.] This is a video and practice problems demonstrate finding missing numbers using order of operations and working backwards. Operations include addition, subtraction,...

[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students solve addition and subtraction problems in order to determine missing numbers to keep the equation balanced. When...

[Free Registration/Login may be required to access all resource tools.] This learning module features four videos and a set of practice questionsin which students use addition and subtraction to solve problems with more than two values...

The purpose of this game is to help learners think flexibly about numbers and operations and to record multiple operations using proper notation. Aligns with 5.OA.A.1.

[Free Registration/Login may be required to access all resource tools.] The resource is a video showing students how to find a missing number in a multi-step addition and subtraction problem using inverse operations. Adaptive practice...

[Free Registration/Login may be required to access all resource tools.] A learning module where students must apply the order of operations to find the missing numbers in equations involving addition, subtraction, and multiplication. A...

[Free Registration/Login may be required to access all resource tools.] A learning module where students apply the order of operations to solve equations involving addition, subtraction, and multiplication of multi-digit numbers, as well...

Understanding that when the total number of parts of a whole are the same, fractions can be added.

Brief lesson plans that show how to use base ten blocks to do all four operations and a little bit of algebra.

Anneberg Learner: Operations the source provides addition, subtraction, multiplication, and division. It also provides an understanding of its relationships to whole numbers.