Students explore the solar system. In this planets lesson, students learn about the other planets in the solar system. They watch a video clip from National Geographic on the solar system, compare and contrast the planets and create a...

In this easy addition worksheet, students complete a set of 4 problems with corresponding picture problems. Teacher notes and a website reference are included.

Fourth graders complete multiplication, addition, and subtraction problems that all contain regrouping. In this regrouping lesson plan, 4th graders complete worksheets not provided.

Students participate in a teacher led math "trick." The teacher "reads the mind of the students. The answer to the problem is always 4, and by following the directions, the teacher can guess that students are thinking of Denmark, and...

Students practice addition and subtraction problems and answer questions using greater than and less than. They chart information to create a graph on the computer.

Twelfth graders differentiate between inductive and deductive proofs.  For this differentiating between inductive and deductive proofs lesson, 12th graders compare strengths and weaknesses of each type of proof.  Students...

In this magic shapes activity, 7th graders work in groups to solve 9 magic square puzzles requiring logic and problem solving.

Students practice story telling. For this story telling lesson, students work in groups to read a fable and divide it into a beginning, middle, and end. Each member takes a section and practices retelling it with vocals, gestures, and...

Students listen to the teacher read a book entitled, Hoot by Carl Hiaasen. In groups, students create KWL charts concerning the book, the author, and the author's writing style. In groups, students research topics about the book and its...

In this math worksheet, students subtract the decimals while taking special care to keep the decimals in the correct place value. The answers are also available.

[Free Registration/Login may be required to access all resource tools.] The video shows how to add three, two-digit numbers. The video is followed by practice problems covering the topics in the video.

Practice adding two-digit numbers by making tens on Khan Academy. If you are stuck, watch a refresher video or choose to get a hint. Test yourself to see how many you can get correct!

Practice adding two-digit numbers by making groups of ten.

In this activity, students learn to build and add two digit numbers. They connect number words and numerals.

This lesson has an explanation for adding two-digit numbers using paper and pencil. There is also a game to practice your skills. The game gives you a percent score of your correct answers, as well as running totals of your correct and...

An extensive selection of teacher resources to aide in teaching and reviewing addition and subtraction of two and three digit numbers, inverse operations, counting on, and other mental strategies for addition and subtraction. Resources...

Learn how to add double-digit numbers in this lesson complete with examples, rules, and vocabulary.

In this exercise, students practice subtracting two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to watch a tutorial video, get hints, and try questions repeatedly.

Students solve two, three, and four-digit addition problems with carrying. The sum turns blue if correct.

In this lesson on addition within 100, students will learn how to compose numbers and will explore strategies to add double-digit numbers such as vertical addition, regrouping, using multiples of 10, and labeling an open number line.

Improve your computation skills using this interactive worksheet. Review two digit addition and subtraction facts. This worksheet gives students immediate feedback and is a suitable tool for short assessments or independent practice.

Divide two whole numbers to get a quotient with a decimal. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

These interactive flashcards help students add two-digit numbers through 99. The problem changes color with the correct answer.

In this exercise, students practice adding two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.