Numbers are connected in many ways! Take students on a journey to uncover multiplication and division fact families and inverse relationships. Teach this lesson on its own or prior to the lesson Division and Multiplication Relationship.

Making mistakes helps us learn! Your students will flex their analytical muscles to pinpoint errors in multiplication problems using arrays. Use the lesson on its own or as support to Base Ten Arrays for Multi-Digit Multiplication.

Help your students show their understanding as they explain how to add fractions with unlike denominators. Use this lesson on its own or as support to the lesson Make It Work! Adding Fractions with Unlike Denominators.

Take your understanding of factors one step further! Use this lesson to classify factors as prime and composite numbers while creating factor trees.

Help students visually represent multiplication with mixed numbers and whole numbers. Use this lesson as a standalone lesson, or as support for the lesson Multiplication of Mixed Numbers with Area Models.

Fractions are everywhere! In this hands-on lesson, your class will work together in groups to find real-world examples of fractions. As they discover more complicated fractions, students will create their own word problems with them.

Encourage your students to describe line plots and the data they represent using peer supports. Use this lesson as a standalone lesson or as support to the lesson Linking Line Plots and Fractions.

Change is inevitable, even for story characters! In this lesson, your students will determine how a character changes throughout a story by focusing on the character’s dialogue and actions.

Continue to build on your students' understanding of unlike denominators by asking students to justify their answers of fraction subtraction. Use this lesson with the Subtracting Fractions with Different Denominators lesson.

Discuss correct decimal placement using logical arguments and by multiplying whole numbers. Use this lesson as a standalone lesson or use it as support to the lesson Multiply Decimals.

Area models are building blocks to more complicated multiplication and division. Use this lesson to refresh students on the relationship between multiplication and area to prepare them to use the area models strategy with larger numbers.

This engaging lesson plan provides first and second grade students with an opportunity to learn all about female inventors.

In this lesson, your students will identify and compare the features found in primary and secondary sources.

In this lesson, students will construct their own number lines and bar models to find equivalent fractions.

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.

Refresh students on the relationship between decimals and fractions when they multiply to find the area! They will find the area of a location in a picture by converting mixed numbers to a decimals and then using the area equation.

Support your students' math fluency by teaching them about the relationship between multiplication and division through fact families. This lesson can stand alone or be used as a pre-lesson for the Do You Know Your Math Facts? lesson.

Teach your students to recognize patterns of zeros when multiplying by powers of 10 with exponents.

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.

Allow your students to explore the pros and cons of different strategies used to find the area of rectangles. Use this as a stand alone lesson or as a pre-lesson for the Multiplication and Area in the Community Garden lesson.

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).

Every student can be a magician after this lesson in mentally adding and subtracting by 10. No previous magic training required!

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.

Students will learn about the holiday El Día de los Muertos through engaging activities and connecting to their own traditions.

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.

Help students transition from a visual representation of dividing decimals to using the standard algorithm for dividing decimals by a whole number. Use this lesson on its own or as support for th lesson Diner Division.

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.

Bring on the polygons! Your students will build their understanding of polygons and sort shapes into categories based on their attributes in this lesson.

In this hands-on lesson, your students will get to sharpen their measuring skills as they measure lengths of items in your classroom to the nearest quarter inch. They'll get to then use their data to create line plots.

How did westward expansion impact people living in the United States? Use this history lesson to give students an overview of the people and events involved. Then help them reflect on multiple perspectives in an informational paragraph.