In this lesson, students will add three-digit numbers using expanded form addition and standard algorithm addition. They'll explain their answers and highlight the steps for each of the strategies.

In this interactive lesson that includes the use of clock manipulatives, students will discover that addition goes beyond straightforward addition problems. Finding the elapsed time is easy with addition!

Multiplication is no longer a mystery when it is partnered with addition! Help your students make connections between multiplication and repeated addition with this hands-on lesson that includes several types of concrete examples.

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 how repeated addition relates to multiplication. This lesson builds number sense and supports a conceptual understanding of multiplication.

Students will find angle sums using a baseball diamond diagram.

Students are at the center of learning as they create and illustrate their own Halloween math problems that show the relationship between addition and multiplication - helping them transition conceptually from the concrete to the abstract.

Use this lesson to teach your students how to determine if they should use addition, subtraction, or both operations to solve a word problem by following four simple steps.

Students will practice mental math and harness their discussion skills through addition problems of like mixed numbers. This lesson may be used on its own or as support for the lesson Adding Mixed Numbers Using the Decomposition Strategy.

With this pastry themed lesson, your students will apply addition strategies to solve two-step, three-digit addition word problems. Finding the solutions will be sweet!

In this lesson, students will practice strategies of subtracting time and apply them to real life scenarios. Also, use this game with the lesson that teaches addition of elapsed time called Beyond Just Addition.

It's time for some fun with grid puzzles! In this lesson, students will learn how to solve KenKen puzzles using logic and applying their knowledge of addition, subtraction, multiplication, and division skills.

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

Students will create angles by folding construction paper, creating angle addition sentences, and then adding the sum of angles on their models.

Finding the perimeter of a polygon is a simple process with addition! Use this lesson to teach your students how to find the perimeter of polygons.

Hop into multiplication! Introduce your class to times tables with this engaging math lesson. Students will read about the correlation between repeated addition and multiplication, and then create hands-on book pages to illustrate it.

Help your students compare and connect two important multiplication strategies: equal groups and repeated addition. This lesson can stand alone or be used as a pre-lesson for Candy Multiplication.

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.

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.

With this movement-integrated lesson, students will use their energy to practice three-digit addition on a number line! Part of this lesson is designed for the outdoors, but the activities can easily be brought inside on a rainy day.

While there are many strategies out there to choose from, help your students focus on the number line strategy for solving elapsed time word problems. Use this lesson independently or alongside Beyond Just Addition.

Invite your students to join the search for suffixes! In this lesson students will locate similar words that have gone through a suffix transformation. In addition to the mechanics, students will explore the meaning behind each word!

Students will love talking about what they've been reading when the story comes to life. This tea time activity nourishes students' confidence in addition to improving their reading comprehension skills.

To make a long story short, idioms are a fun addition to the English language! Use this lesson with your students to determine the meaning of common idioms— specifically those associated with Valentine's Day.

With this super sensory lesson, students will make sense of a variety of sensory words. In addition to exploring sight, sound, touch, taste, and smell words, students will make connections to real-life experiences!

Planning for a substitute teacher in the classroom has never been easier than with this week-long sub packet for fourth grade! Your substitute can supercharge learning with lessons that will educate and inspire your students!

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.

Marie Curie’s monumental achievements in chemistry and physics are remarkable. In this lesson, your students will read two accounts of her life, integrate the details, and assess the importance of having more than one source of information.

Students will get a chance to see and interact with solving tens multiplication facts in real world scenarios. They will finish this lesson confident in knowing how to solve 10s multiplication facts.

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.