Windmills have been around for generations to grind food and create energy. During this challenge, students will use various materials and put their engineering skills to work by creating their own windmills.

Get your students to be builders and create structures with a variety of materials. Students will have the opportunity to be creative, cooperate in groups, and discuss their experience.

Help your students master decimals with this engaging math lesson. Your class will put their art skills to work creating a poster, and will practice mathematical explanations through peer collaboration.

In this hands on lesson, students create squares with different fraction pieces while building their knowledge of adding fractions with different denominators.

Young mathematicians will enjoy demonstrating their skills with this lesson on finding area. It addresses the concepts of length, width, and square units.

Teach your students to find the perimeter of polygons using real world examples. They will make polygon pictures using tangrams and practice finding the perimeters of the polygons in their masterpieces.

You need the length and the width to find the area of a rectangle or square, but what if one piece of information is missing? Use this lesson alongside What's My Area? or on its own.

Students will practice coming up with equivalent fractions in a fast paced challenge! This is an introductory lesson to equivalent fractions.

Students will master multiplication with this inventive robot challenge! Your students will practice their math-fact fluency in this lesson plan.

Are your students ready for a challenge? In this science and language arts integrated lesson, students will not only learn about floods and droughts, but they will also brainstorm and develop solutions.

Challenge students to decompose numbers within multiplication expressions. Use this lesson as a standalone lesson or as support to the lesson Solving Expressions in Word Problems.

Multiplying with fractions may seem easy to your students, but challenge them with this engaging lesson that requires them to write their own word problems!

Challenge students to listen to instructions to create expressions with parentheses. Use this lesson on its own or as support to the lesson PEMDAS: Order Up.

Challenge students to compare two strategies for solving division expressions! Students will focus on their language use in this pre-lesson to the Dicey Division lesson.

Challenge students to talk about rounded numbers to the millions place value. Use this lesson as a standalone lesson or as support to the lesson Numbers All A-Round.

Challenge students to relate the multiplication of decimals to that of whole numbers. Have them justify their estimations in partners. Use this lesson on its own or use it as support to the lesson Multiply Decimals with Models.

Challenge students with a discussion about prepositions and conjunctions in this lesson. Your class will write a journal entry to explain the function of the prepositions and conjunctions in a specific sentence.

Challenge students' understanding of multiplying fractions by whole numbers to help them form opinions about rules regarding scaling. Use this lesson on its own or as support for the lesson Multiplication as Scaling.

Teach your students the vocabulary words to accurately discuss division equations, and then challenge them to write their own word problems! Use this lesson independently or as a pre-lesson for Divide it Up!

Challenge your students to make their personal narratives come to life with strong action words, feelings, and thoughts. This lesson will help young learners develop their creativity and writing skills.

Challenge students to convert measurements between their metric counterparts! Students will relate the measurements to real-world objects. Use this lesson as support for the Converting Metric Measurements in Word Problems lesson.

Help your students discover the power behind base ten drawings! Regrouping is a challenge for many students, but with this hands-on lesson, your students will be empowered with a new strategy to tackle difficult regrouping problems.

Getting hooked on a series or type of character creates reader engagement! Use this lesson to challenge your students to compare and contrast fictional texts as they find the joy in reading books by the same author.

Word problems present an additional challenge for English learners. This division lesson gives them a concrete strategy to decipher word problems. Teach it on its own or prior to teaching Division Word Problems.

Challenge students to use their understanding of standard algorithm division to list multiples while solving division problems. Focus on their language use and opinions in this pre-lesson to the Partial Quotients Method lesson.

Challenge students to think about decimals while identifying numbers to the hundredths and thousandths. They'll discuss decimal attributes too. Use this lesson on its own or as support to the lesson Dividing Decimals: Estimation.

Master rounding and estimating skills by having students challenge their classmates in the Make a Big Difference game. Roll three dice two times to arrive at two three-digit numbers. The largest difference wins!

This lesson includes a bunch of hands-on activities to get little writers excited about complete sentences. After learning about subjects and predicates, students will tackle the challenge of writing their own sentences and fragments.

Challenge your students to compare two methods for finding the least common multiple between two fractions. Use this lesson on its own or as support for the lesson Make It Work! Adding Fractions with Unlike Denominators.

Saying lengthy numbers doesn't have to be a challenge! Relate the digits in numbers to their place value to help students say the expanded form. Use this lesson on its own or use it as support to the lesson Many, Many Millions.