Curated OER
Cold Hard Facts? What Inquiring Minds Will Know -- Inquiry-Based Ice Investigations
Learners are introduced to the concepts of perimter, diameter, circumference and measurements. In groups, they complete two worksheets in which they determine if the ice dimensions make a difference in the way it floats. They discuss...
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Egyptian Fractions
Sixth graders take a brief look at what is known about Egyptian Fractions. These are unit fractions - fractions whose numerator is one. We look at how fractions can be represented in terms of Egyptian Fractions. Finally we suggest a web...
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Square Numbers
Fourth graders use square tiles to help them explain the concept of square numbers.
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Subtraction and Addition Word Problems Made Easy
Third graders create addition and subtraction word problems for a partner to solve using marbles. They explain whether the problem is an addition, subtraction, "take away", "have and need", compare or "what is the rest" type problem.
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What's My Number?
Fifth graders use AppleWorks to stamp a given number to the thousandths place. They read, write and order integers, whole numbers and rational numbers. They represent place value using concrete or illustrated models.
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Go Figure! Using Percents in the Real World
Sixth graders solve sales tax problems. In this solving sales tax problems lesson, 6th graders find the sales tax on various items. Students are given a list of expenses that a family spent on vacation before taxes. Students determine...
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Checking Account
Students keep track of finances in a check register. In this checking account lesson, students practice writing checks and deposit slips as they add and subtract decimal amounts in order to balance a checkbook in a register.
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Using Basic Operations in Word Problems
Students review basic operations and use them to solve word problems. In this word problems lesson, students review basic mathematical operations such as addition, subtraction, multiplication, and division. Students then complete an...
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Multiplying and Dividing Integers/Relay Race
Give your class a list of multiplication and division sentences that contain both positive and negative integers. Have them analyze them to see if they can discover the pattern with the signs. From these patterns, help them develop the...
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Shopping Spree
Sixth graders examine currency by completing monetary equations. In this economics instructional activity, 6th graders participate in a numbers experiment where they roll a die and earn money based on their roll. Students compete for...
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Let Us Go Shopping!
Third graders add merchandise up to find total cost and line up numbers correctly to the decimal point.
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Number and Algebra: Again and Again
Students use a given spreadsheet to investigate an iterative process by changing the variables. They design their own spreadsheet to investigate the iterative process.
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Marking the Minutes
Students mark seconds, minutes, hours, days, etc. on class timetable report to keep track of time spent on Uninterrupted Silent Reading.
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Eating on a Budget
Students are "given" $25.00 to spend at a restaurant. Using the Internet, they must "order" a complete 4 course meal while staying within their budget.
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Arithmetic: Revision
Students practice with a variety of simple equations involving addition, subtraction, multiplication and division. Explanation is followed by each block of equations given to solve. They are set loose to complete additional equations for...
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Time For Breakfast
This unit encourages students to assess the validity of a set of statements and then plan and carry out investigations to find out whether the statements are true. Students then carry out statistical investigations of their own.
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My Dogs
Students use the properties of multiplication to solve problems. They recall the basic multiplication facts as well as write and solve problems that involve whole numbers.
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Native American Bartering
Fifth graders create items to barter. In this Native American bartering lesson, 5th graders read a book, design and make items, and barter with their peers. Students reflect on the experience through journal writing.
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Let's Take a Trip!
Sixth graders plan trip for family of four, and choose best travel plan by studying maps, considering different routes, and visiting Web sites to get airline and travel schedules.
Illustrative Mathematics
Illustrative Mathematics: N Rn Sums of Rational and Irrational Numbers
The goal of this task is to examine sums and products of rational and irrational numbers. One important property of rational numbers is that their decimals always terminate or repeat: using a slightly different formulation, a rational...