In this lesson, students engage in interesting hands-on activities that help them discover the properties of parallel, perpendicular, and intersecting lines. Your little mathematicians will have a blast as they learn about geometry.

Help! The numbers in our equations have run away and left their answers alone! In this lesson, students will review their math facts and knowledge to solve Ken Ken like puzzles and bring the numbers back to their places.

Make division come to life with this hands-on, introductory lesson on the operation of division! Students will use authentic problems and manipulatives to experience division in action.

Activate your students' observational skills by having them analyze a chart of the powers of ten! Use this lesson on its own or as support to the lesson Powers of 10.

Input some patterns to T-charts in this lesson. Use this lesson about input and output boxes as a precursor to finding patterns within word problems.

Your students will be able to divide decimal numbers by powers of 10 and explain decimal placement patterns in the quotient.

Start a dialogue around area models! In this lesson, encourage students to ask questions as they multiply using area models. Use this lesson on its own or as support to the lesson Area Models and Multiplication.

In this lesson, students will consider equations with fall pictures serving as the number value and decide which equations are true and which is a lie. The worksheets in this speaking and math lesson follow the Two Truths and One Lie game.

This lesson helps students review rounding to the nearest hundred. Your students will practice rounding using manipulatives.

With this lesson, your students will see how the order of the factors does not affect the product in a multiplication expression. Use this on its own or alongside You're On a Roll! Practicing Multiplication Facts.

Help your students absorb the details of a text and make inferences about what they read with the strategy of close reading. By reading closely, students will become better able to understand complex themes and nuances in a text.

This lesson introduces students to the concepts of mean, median, and mode in a hands-on and visual way.

Freshen up on your understanding of division word problems with long division and one-digit divisors! Use this lesson to help students identify key division terms and solve word problems.

Delicious multiplication! In this sweet lesson, your students will learn how to relate multiplication to repeated addition using candy counters.

Build on students' understanding of the power of ten within multiplication to understand its effect within division. Use this as a standalone lesson or as support to the lesson Dividing Decimals by Powers of 10.

Make multiplying by powers of ten more accessible to your students by focusing on patterns in the number of zeros!

Line plots are a great way to introduce your students to graphing data. In this lesson, your students will learn how to create a line plot and also practice interpreting line plots.

Encourage student explanations and visual representation of fraction subtraction in this interactive lesson. Use this lesson on its own or as support to the lesson Modeling Mixed Number Subtraction.

Word problems can be overwhelming to students, but if they have a tool to help them, they can handle it! Use this as a stand alone lesson or alongside Stepping Through Addition and Subtraction Word Problems.

Help your students discover patterns when multiplying by five.

Get your students up and moving as they learn the basics of geometry. Your competitive students will love this game and put their new skills to the test with a worksheet.

Students will learn to convert metric units by applying concepts in word problems. Exercises and worksheets incorporate length (meters), and optional practice offers more instructions on mass (grams) and volume (liters).

Help your students subtract with confidence by sharing two different strategies. Use this lesson to build on students’ understanding of subtraction and to evaluate this key skill.

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.

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.

Students will be introduced to the tenths place value while converting fractions during this fun and interactive lesson.

Graphs bring data to life and help us draw conclusions about the information presented. In this lesson students will engage with three different kinds of graphs by asking and answering interpretive questions.

Get your students comfortable discussing their math thinking in converting centimeters to meters. This lesson may be used on its own or as support to the lesson Converting Metric Measurements to Decimals & Fractions.

Help students color-code their way to multiplying fractions! Students will learn how to multiply fractions using area models. Use this lesson on its own or use it as support to the lesson Area Models and Multiplying Fractions.

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