Curated OER
Art or Junk? Discovering the Triangle Inequality
Middle schoolers study the triangle inequality. They will identify, compare, and analyze attributes of two and three-dimensional shapes. Then they develop vocabulary to describe the attributes. They also use manipulatives to analyze the...
Pennsylvania Department of Education
Shapes Around Us
Learners use manipulatives to study shapes. They sort shapes and use correct geometric terminology to describe them. Students find real-life examples of 2 and 3 dimensional shapes, and classify figures in their classroom according to...
Curated OER
Prime and Composite Number Mini Lab
Elementary schoolers determine the attributes of prime and composite numbers. Pupils, working in pairs, participate in an activity in which they use manipulatives to show the rectangles that can be made from square tiles. They practice...
Curated OER
The Tortoise And The Hare
Students use the children's story of The Tortoise And The Hare in order to investigate the graphing of equations. The story is converted to an algebraic word problem for them to solve. Students investigate the relationships of data and...
Curated OER
Word Power
Fifth graders identify a set of data from a real world problem. In this statistics instructional activity, 5th graders identify the range, mode, median and mean using some manipulatives. They write words randomizing the letters.
Curated OER
I Spy a Pattern-Kindergarten
Students copy, create, describe, and extend patterns with objects. They explore a variety of patterns through the use of manipulatives, sound, rhythms, songs and movement. Cooperative processes are used to encourage partner discussion.
Curated OER
Learn Fractions with Cuisenaire Rods
Students study fractions with the use of manipulatives. They use Cuisenaire Rods to visualize problems and solve them.
Curated OER
Justifying Answers
Students demonstrate how to solve word problems. For this problem solving lesson, students use strategies such as drawing pictures, using counters, and making a table to justify how they solved the word problem.
Curated OER
Place Value
Pupils use various manipulatives and play a game to practice place value and to help them visually see how many "ten" is.
Curated OER
Title Balancing With Tidy Numbers
Pupils use math manipulatives (ice block sticks) to show the addition of two 2-digit numbers. They discuss short-cuts that might be used to make the problem easier. they apply the same principle for adding larger numbers, as well.
Curated OER
Factoring Trinomials
Students factor trinomials using algebra tiles and blocks. For this algebra lesson, students complete a trinomials station activity. They work backwords to find their answers and discuss their steps in a group.
Curated OER
Regrouping Ten Ones for One Ten
Students explore regrouping. In this hands-on math place value instructional activity, students construct models using connecting cubes and place value mats to solve simple addition problems that require regrouping.
Curated OER
A Penny Saved is a Penny Earned
High schoolers explore the concept of exponential growth. In this exponential growth lesson, students manipulate power models with base 2. High schoolers discuss what would happen if you doubled a penny over the course of 20...
Curated OER
Exploration with Geometric Solids
Students reinforce geometric concepts by playing "Guess My Solid." Through a process of elimination, they determine the shapes of mystery solids. Finally, students use various materials to construct their own geometric figures.
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...
Curated OER
Powers of Ten
Students make paper ten strips using graph paper. They add them together to depict the powers of ten.
Curated OER
The 3R's: Rights, Rules, and Responsibilities
Eighth graders complete seven work stations that highlight math activities while they focus on the rules for Internet use and classroom rules for working in cooperative groups. After completing the activities, they complete a self-...
Curated OER
Area and Perimeter of Rectangles
Discover the difference between area and perimeter. Learners are grouped in twos and threes and each group has one advanced/gifted learner to serve as the peer helper. They receive manipulatives to help them determine the area and...
Curated OER
Getting to Base 10
Students compare and contrast number systems from around the world. They study the decimal system to design and create their own base 10 sticks. Afterward, they use base 10 sticks to solve various addition and subtraction problems.
EngageNY
Three-Dimensional Space
How do 2-D properties relate in 3-D? Lead the class in a discussion on how to draw and see relationships of lines and planes in three dimensions. The ability to see these relationships is critical to the further study of volume and...
Mathematics Assessment Project
Sorting Equations and Identities
Identify the identity. Learners first solve equations to find the number of solutions. Scholars then determine if given equations are always, sometimes, or never true, leading to the concept of identities.
MENSA Education & Research Foundation
Probably Probability
Reinforce the concept of probability with a series of lessons highlighting the idea of likelihood, probability formulas, relative frequency, outcomes, and event predictions. The collection is made up of four lessons offering informative...
Alabama Learning Exchange
Exponents and Division
Create a human fraction to learn about division of exponents. Scholars develop the rule for division of exponents by being part of a human fraction to explore and justify the rule. They also consider zero exponents and negative exponents.
West Contra Costa Unified School District
Adding by finding 10's
Count with ten frames in a first grade addition activity. Kids determine how to identify numbers on a number line, as well as with ten frames, and complete ten frames to show their answers in several addition problems.