Illustrative Mathematics
Many Ways to Do Addition
A great aspect of teaching math is that children have the freedom to solve problems using a variety of different strategies. The focus of this lesson is for young mathematicians to become aware of many ways of answering addition...
CK-12 Foundation
Whole Number Addition: Let's Go Fishing!
Practice adding whole numbers by combining the amount of fish Alice and Bob catch. As young mathematicians work through each problem, they are asked to find one more plus the amount of fish already caught. They can manipulate the...
Laura Candler
Fishbowl Multiplication
Transition young mathematicians from using repeated addition to multiplication with this fun, hands-on activity. Using manipulatives and the included game board, students work in pairs modeling repeated addition problems before...
Curated OER
Introducing Multiplication
Learners will look at repeating addition examples and view how they can be written as multiplication. They use manipulatives to complete a repeating addition lesson and show it on graph paper. They also chart what they have found and...
Curated OER
Adding Mixed Numbers - Unequal Denominators
Working with fractions that have unequal denominators is one of the most difficult concepts for young mathematicians to master. Here you will find a fine lesson that should help youngsters begin to get a grasp on this important...
Curated OER
Area Model of Multiplication Using Base 10 Manipulatives
Explore two-digit multiplication with your class as they work in groups to build models of two-digit multiplication using base 10 manipulatives. They construct rectangles replacing standard numbers with equivalent place values using the...
Illustrative Mathematics
Christina's Candies
Help Christina figure out how many chocolate and lemon candies she has with a lesson on decomposing numbers. When presenting this context to the class, the teacher chooses the total number of candies and the number that are chocolate,...
Math Salamanders Ltd.
Multiplication as Repeated Addition to 10x10
The class works to change 15 repeated addition problems into their multiplication counterparts and then completes 15 more where they do the opposite. This is a great way to build an understanding of what multiplication is and could...
Curated OER
Three-Digit Addition
Students work with hundreds place value, create and manipulate three-digit addition problems, and add three-digit numbers.
Illustrative Mathematics
Field Day Scarcity
Introduce young mathematicians to concepts of financial literacy with this open-ended word problem. With seven dollars to spend during field day and given a list of available items and their prices, children must determine how they want...
Virginia Department of Education
Integers: Addition and Subtraction
Young mathematicians construct their own understanding of integers with an inquiry-based math lesson. Using colored chips to represent positive and negative numbers, children model a series of addition and subtraction problems as they...
Curated OER
Use Google Maps to Teach Math
Capture the engagement of young mathematicians with this upper-elementary math lesson on measuring time and distance. Using Google Maps, students first measure and compare the distance and time it takes to travel between different...
Curated OER
Adding Integers with Two Colour Counters
Students use the zero principle to add integers. In this algebra lesson, students add positive and negative integers verifying the zero principle. They use manipulatives to help them see how opposites can cancel each other out.
Houghton Mifflin Harcourt
Addition and Subtraction Facts to 20
First graders act out number stories from number cards. In order to learn about addition and subtraction up to 20 lesson, learners become the manipulatives and line up to show the number stories.
Curated OER
"Reviewing Facts Through 10" Lesson Plan
Explore the joy of math with you little learners! They practice creating math problems with numbers from a fact family using numbers 1-10. They work independently with a set of connecting cubes to aid them in creating number sentences...
Curated OER
Multiplication Strategies - A Day at the Zoo
This is an amazing 33-page resource for teaching multiplication! Your mathematicians will discover the connection between multiplication and repeated addition. They also will work collaboratively with arrays while studying zoo animals....
Curated OER
Yummy Gummy Subtraction
Here is a quick 15 minute instructional activity intended to introduce subtraction. Learners count and subtract gummy bears to complete 5 problems. The lessons suggest that the gummy bears can be saved and used the next day, but gummy...
Curated OER
Addition and Subtraction Facts to 20
Fact families, and the relationship between addition and subtraction are the foucs of this lesson. Learners explore strategies to help with their addition and subtraction facts. They use doubles, related facts, and fact families to help...
K20 LEARN
Decomposers—Fraction Style: Fractions
"What are fractions composed of?" is the essential question of a lesson designed to enhance understanding and strengthen the foundation of adding fractions. Mathematicians start by discussing what makes an equation true or false, then...
Curated OER
Two Digit Addition with Regrouping
Students explore the concept of "regrouping." In this 2-digit addition with regrouping lesson, students create visual representations of combinations that equal ten using a tens frame. Students use manipulatives to represent the tens...
Alabama Learning Exchange
Battle to the Death: Adding Integers
Young scholars explore the concept of adding integers. In this adding integers lesson, students simulate the battle of the 300 spartans at Thermopylae. Young scholars use colored game pieces to represent positive and negative numbers. ...
Curated OER
Dance, Dance, Dance
Use dance and song to help your charges in adding whole numbers to 10. For this adding to 10 lesson, learners become the manipulatives as you add them.
Curated OER
Patterns Here, There and Everywhere
Pattern recognition is a skill often used in mathematics. Learners count and sort manipulatives, organize the data into a graph and answer questions about the information displayed. They collect the objects to be used and create patterns...
Curated OER
Two-Digit Addition With Regrouping
Second graders practice two-digit addition with regrouping. In this addition lesson, 2nd graders use craft sticks to solve two-digit regrouping problems. Students solve problems on the chalkboard.