Curated OER
Models and Algorithms to Solve Multiplication Problems
Students choose the correct strategy to solve multiplication and division. In this algorithm instructional activity, students use at least two strategies that use properties of operations and estimation. Students also recognize the...
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Alternative Algorithms
Analyze algorithms for computing with rational numbers and develop fluency in their use with your math class. They work individually to solve the problems on the "Alternative Algorithms" sheet. Then, they analyze the appropriateness of...
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Operations with Positive Fractions and Decimals
Explore the concept of fractions and decimals! In this fractions and decimals instructional activity, pupils use fraction tiles to express fractions. They play a fraction review basketball game where when a team gets a question correct...
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Partial Products
Third graders study partial-products algorithms. In this math instructional activity, 3rd graders use an algorithm to find the product of factors. Students discuss the relationships between multiplication and division.
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Adjusting the Quotient
Students solve division problems. In this division lesson, students review estimating and how to figure out if their estimate is too large or too small. Students solve division problems and use their estimating skills to adjust the...
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Practicing Arithmetic
Students practice single operation arithmetic ranging from single digit addition to long division of decimals or real numbers using Graphit. They use data sets and rules to graph ordered pairs.
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Students' Strides
Complete problems using base ten blocks to see the difference in the place value of a decimal and how it affects a number's value. Learners compare decimal values as well. Ample time for discussion and modeling are allowed in the...
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Dream Car Math
Students collect car cost comparison data from the "Car Wizard" web site to use as problem solving and for calculations related to math.