In this lesson, students will practice explaining the process of subtracting numbers up to 1,000 using base-ten blocks and peer feedback. Use this lesson on its own or as support to the lesson Fluently Subtracting within 1,000.

Grid puzzles are a terrific way to practice thinking about math! In this lesson, students are asked to solve addition grid puzzles and compare processes. Use it on its own or as support for the lesson Solving KenKen Puzzles.

Improve your students' sentence variation with this lesson that teaches them how to use conjunctions to improve the flow of their writing.

Get your students comfortable with math conversations with this lesson on multiplying fractions by a whole number. It can be taught on its own or used as support for the lesson Fractions of a Whole.

Get your students talking about number patterns and rules with this introductory lesson on function tables. Use this lesson as a pre-lesson to Input and Output Boxes or teach it on its own.

Help students develop compare and contrast skills while they examine multi-digit addition models. This lesson can be used independently or in conjunction with the lesson Addition with Regrouping.

Teach your students to recognize and use the distributive property of multiplication.

Solve for the sum of two mixed numbers! They will use scaffolds such as fraction models to support the visualization of mixed numbers. This can be used on its own or as support for the lesson Sums for Mixed Numbers and Improper Fractions.

Get students moving with this interactive lesson! They will use real objects to act out skits while practicing their division skills. This lesson can used on its own or as support for the lesson Introduction to Division with Remainders.

It's as easy as one, two, three...four! Introduce your students to subtracting decimals in the tenth and hundredth place using a four-step process.

Teach your students to add and subtract fractions with like denominators using a strategy that works for both operations: converting mixed numbers into improper fractions and back again!

Mix-ups of "there," "they're," and "their" happen way too often. There is no better time than now to help your students get their homophones down. They're sure to have fun with this interactive English lesson!

Share the divvy out method for division and provide a foundation for learning the partial quotients method. This lesson can be used on its own or as support for Using the Partial Quotients Strategy for Division with One-Digit Divisors.

Linking and helping verbs may not be the most exciting or understood verbs — but they are still important! Learn and practice these parts of speech. Learn and practice these parts of speech with this lesson that incorporates interactive exercises.

Want your students to/too/two use the right/write words when/win writing? This lesson will teach them about homophones and the different ways/weighs they are used.

Help your students understand the connection between skip counting, multiples, and multiplication with this lesson. Teach it on its own or use it as support to the lesson Clap Counting with Multiples.

Finding the least common multiple is an essential skill for comparing, adding, and subtracting fractions! This lesson introduces students to this concept in an interactive way.

Use this lesson to show your students how food travels from the mouth to the stomach. Additionally, show them how the digestive system delivers important nutrients to other parts of the body and also excretes wastes from the body.

Teach your students to create equivalent fractions by multiplying by different fraction forms of 1 whole like 2/2 or 4/4. This lesson also includes drafts of area models.

Whoa, weather! Using technology as an aid, students will put their research skills to the test while learning about hurricanes.

In this cooperative economics activity, students learn about the division of labor in a real way. Students will be able to see first hand the advantages and disadvantages of the division of labor.

Enhance your students' multiplication toolbox by teaching them the lattice strategy for multiplication. Use this lesson as a standalone or as a prelesson to Multiplication Bingo: Two-Digit Numbers.

Use this lesson to guide your ELs towards identifying and discussing the problem and solution in a story. Teach this lesson as a stand-alone lesson or as support to the lesson Traditional Literature: Story Mapping.

Your fourth graders will not only have fun creating and playing an equivalent fractions memory game in this interactive lesson, they will also become much stronger mathemeticians in the process.

Facilitate an exploration and comparison of multiplication strategies for your students to see the variety of ways to solve the same problem. Use this lesson on its own or teach it prior to the lesson Multiplication: Musical Chairs.

It's not enough to just memorize the multiplication table! It helps students to know how to explain their strategy to find the product too. Teach this lesson on its own or use it as support for the lesson Slap and Roll Timed Multiplication.

Which number doesn't belong? This lesson requires students to think critically as they determine which number is not a factor of a particular number. Teach it on its own or as support for the lesson Factors Over the Rainbow.

It is not only important for students to recognize words with prefixes, but also be able to choose the right prefix for the base word. In this lesson, students will work in groups to come up with as many words as possible with particular prefixes.

Are these fractions really equal? Use this lesson to introduce the concept of equivalent fractions with your students. Teach this on its own or use it as support for the lesson Equivalent Fractions Using Area Models.

In this lesson, students will practice identifying the subject and predicate of a sentence and making predictions with textual evidence as they read short fictional texts. Use it as a stand alone lesson or as a precursor to What's Next?