Curated OER
The Multiplier (2-digit by 2-digit numbers)
Fourth graders Split a 2-digit number into tens and ones. They use The Multiplier to partition and solve 2-digit by 2-digit multiplications. They describe how to solve 2-digit by 2-digit multiplications using a diagram.
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The Multiplier (origin of the algorithm)
Students explore basic algorithms for addition, subtraction, and multiplication. They use models to demonstrate solving two-digit by two-digit multiplication. Students demonstrate vertical formats to solve multiplication problems.
Curated OER
Introductory Algebra Chapter 1 Review
In this math worksheet, learners solve the problems that involve linear equations. They substitute the values given for each variable.
Curated OER
Come On Down!
Learners research the implementation of a research vessel used for ocean exploration. In buoyancy lesson students will construct a device that shows neutral buoyancy.
Curated OER
2 digit subtraction
Second graders subtract numbers 0 through 10 from 2 digit numbers using different subtraction methods. In this subtraction lesson plan, 2nd graders practice crossing out numbers in a number line, using a 10, and using their fingers to...
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Pizza Topping Combinations
Students brainstorm pizza toppings and determine the number of possible ways to order a pizza. In this algebra lesson, students analyze and investigate geometric patterns as they relate to the concept of a variable. Students then use a...
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Estimation
Students complete computer activities about estimating if items are more or less than a given amount. In this estimation lesson plan, students also estimate measurements around the classroom.
Curated OER
Toothpicks and Timber
Young scholars problem-solve how to log five acres. Working in pairs, they construct models of logging sites before and after the trees are harvested. they paint their models and include other environmental details.
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Christmas Shopping on the Internet
Students utilize the Internet as a research tool as they "shop" on the Internet for a list of Christmas gifts. In groups, they compare prices, shop for the best price and make sure to spend no more than $300.
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Division with Dividends to 99
In this math worksheet, students find the answers to the following long division problems. The problems can have remainders.
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Long Division in Two Digits
In this math worksheet, students find the solutions to the problems for long division. The answers can be shown in the printable version.
Helping with Math
Multiplication: 3-digit x 1-digit
When youngsters are just beginning to multiply multi-digit numbers, here is a nice second step. After they master multiplying two-digits by one-digit without regrouping, they can move on to three- by one-digit problems. Here are 30 of...
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Atlatl Lessons Grades 4-12
Students examine motion and how to describe it qualitatively. In this investigative lesson plan students see how aboriginal people were environmentally responsible.
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How Much Does it Cost to Light Your School?
Middle schoolers explore the cost of electricity used to light their classrooms. They compute the cost of electricity as well as the number of kilowatt hours of electricity used during the school year. Students compute the number of tons...
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The Box with the Greatest Volume
Learners use measurement tools to measure the nearest 16th of an inch. They connect fractions and their decimal equivalents and compare this with other decimals. Finally, the class uses algebraic concepts and formulas to solve problems.