National Security Agency
Systems of Equations and Inequalities
High school classes can use manipulatives too! Offer hands-on, interactive lessons that venture away from the typical day in your algebra class. Young mathematicians will be involved in collaborative learning, visual...
Shodor Education Foundation
Triangle Area
While the lesson focuses on right triangles, this activity offers a great way to practice the area of all triangles through an interactive webpage. The activity begins with the class taking a square paper and cutting in in half; can they...
Rational Number Project
Rational Number Project: Initial Fraction Ideas
Deepen the fractional number sense of young learners with this introductory lesson on equivalent fractions. After completing a short warm-up activity, children go on to work in pairs using fraction circles to complete a table of...
Rational Number Project
Initial Fraction Ideas Lesson 18: Overview
Develop young mathematicians' ability to compare fractions with investigation into the number 1/2. After brainstorming a list of fractions equivalent to 1/2, children identify a pattern in the numerators and...
West Contra Costa Unified School District
Multiplying Binomials and Factoring Trinomials
Two lessons for the price of one! Learners use algebra tiles to multiply binomials in the first lesson, Next, they use their knowledge from the first lesson to factor trinomials into two binomials.
Alabama Learning Exchange
Triangle Congruence with Rigid Motion
Combine transformations and triangle congruence in a single lesson. Scholars learn to view congruent triangles as a rigid transformation. Using triangle congruence criteria, learners identify congruent triangles and the rigid...
Illustrative Mathematics
Seven Circles III
A basic set-up leads to a surprisingly complex analysis in this variation on the question of surrounding a central circle with a ring of touching circles. Useful for putting trigonometric functions in a physical context, as well as...
Curated OER
M & M Addition
Eat your math manipulatives, are you serious? Yup, Learners listen to the story The M & M's Addition book, add single digit numbers to reach sums up to six, and demonstrate addition and subtraction number combinations using several...
Curated OER
Prime and Composite Numbers with use of manipulatives (Elementary, Mathematics)
Students learn what prime and composite numbers are. They learn how to identify them by working in a group and demonstrating an understanding of one work problem with 100% accuracy using the manipulatives provided.
Curated OER
Justifying Answers
Young scholars study story problems and learn how to find and justify their answers. They will use a story problem and then respond to the prompt questions from the teacher. They must add and subtract facts to 6 and learn how to justify...
Curated OER
Name Collections with Craft Sticks
Groups of Kindergarten students count craft sticks in different groups and name how many they have. They complete simple addition to ten with the use of manipulatives.
Curated OER
Incredible Equations - Math Calendar Activity
Students review math facts and create their own math problems using the numbers in the current date. They demonstrate the problems using various manipulatives.
Oregon Department of Education
Building and Expanding Patterns
The generation of a number, or shape pattern, is the focus of this math lesson. Pupils are presented with a variety of patterns shapes, and number patterns, then use worksheets embedded in the plan to gain further practice. The...
Curated OER
Playing the Cards of Place Value
Third graders explore place value to the ten-thousands place. For this amazing, 21-page place value lesson, learners represent numbers in standard and expanded form, and use technology to represent numbers to 9,999.
Curated OER
Fruity Math
Students solve one step linear equations. In this algebra lesson, students manipulate their variables and numbers to answer each problem. They make sure the equations stay balanced at all times.
Curated OER
Story Problems - Math
Students participate in hands-on, computer activities to demonstrate the addition and subtraction of mathematical situations. Given a story problem, students determine when to add or subtract. Using word processing technology, students...
Curated OER
Using the Balance
Students determine the mass of various objects. In this integrated math and science lesson, students use an arm balance to compare a known object to a combination of washers with a fixed weight. Students record data, construct a bar...
Curated OER
Dead Body Math
Students solve the mystery of dead Mr. Potato Head using physics and algebra. They discuss Newton's Law of cooling as it applies to the mystery scenario involving a cooling baked potato as the "victim". They manipulate algebraic...
Curated OER
4th Grade Math Study Guide
Fourth graders perform computation based on a cup of rice. In this rice math lesson, 4th graders complete math examples and problems using rice for manipulatives. Students participate in an online game based on rice math.
Curated OER
Investigating Area Using Tangrams
Tenth graders connect the history of geometry to problem solving. In this geometry lesson, 10th graders investigate polygons through hands on manipulatives and solve problems relating to parallelograms and triangles. They calculate the...
Curated OER
Harvest Halloween
First graders brainstorm mathematic manipulatives to assist them with a given set of problems. They work in pairs or small groups and write and/or draw to explain how they solved the problem.
Curated OER
Making a Quilt: Multiplication
Third graders explore their multiplication skills. They will use their problem solving skills to solve an everyday math problem that requires them to multiply numbers. This instructional activity incorporates the use a video titled...
Curated OER
Matchstick Math: Using Manipulatives to Model Linear, Quadratic, and Exponential Functions
Playing with matches (unlit, of course) becomes an engaging learning experience in this fun instructional unit. Teach pupils how to apply properties of exponential functions to solve problems. They differentiate between quadratic and...
Rational Number Project
Initial Fraction Ideas Lesson 22: Overview
Have young mathematicians subtracting fractions in no time with this manipulative-based math activity. Using their sets of fraction circles, students explore a number of word problems involving the subtraction of fractions before working...