Curated OER
"th" numbers
Second graders practice the code in English for fraction is that the words end in "th." They write and solve problems involving halves, quarters, thirds and fifths as they realize that the meaning of fraction words one "x-th" is that it...
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Tennis Ball Addition
Second graders practice their addition basic facts. They work in groups of three with one tennis ball or Koosh ball. Students call out a number one at a time and passes the tennis ball to another. The third student adds the two numbers...
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Show Me the Number
Second graders develop the ability to show two-digit numbers using place value attributes in the early additive stage five. They utilize the manipulative's of sticks, rubber bands, counters, small canisters and uni-link cubes to assist...
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Deci-order
Fourth graders play a game to practice their decimal number ordering skills. They use their knowledge of the number system to create the biggest decimal number. Students are dealt 3 cards each with the reminaing cards placed face down...
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Bargain Town, USA
Third graders discuss discounts and walk around classroom labeled with lots of discounted merchandise. They complete a worksheet converting original prices to new bargain prices.
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Calculating Theoretical & Experimental Probability
Pupils explore the concept of experimental and theoretical probability. In this experimental and theoretical probability lesson, students collect data by conducting a survey of their classmates. Pupils compare their data and discuss how...
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Energy Conservation (Middle, Mathematics)
Learners take turns reading the electric meter six times a day at regularly scheduled intervals. They figure out the amount of electricity used and then determine the total cost of electricity for the week.
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Reflection of Light With Two Plane Mirrors- Double Mirrors Placed at a Number of Angles
Students place two plane mirrors at different angles to experiment with reflection. They make kaleidoscopes and periscopes.
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Points
Students listen to Gill's story and determine how many number points she has. They then find the number of points their own name has and get into groups where all the name points are the same.
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Cars in Garages
First graders investigate whole numbers, and how numbers are often made up of smaller numbers. They determine the underlying concepts of addition and subtraction by examining how there is a finite set of number pairs for a given number....
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Gremlins
First graders investigate the missing numbers on an equation chart in order to practice their addition and subtraction skills. They work with sums up to twenty and use up to twenty objects to work with subtraction equations. They listen...
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Reversing Numbers
Second graders solve a math word problem involving the addition of two digit numbers. They discuss the problem as a class, independently explore the problem, and discuss as a class the solution and how they organized their reversed...
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Visiting Grandma
First graders investigate the aspect of time, including days of the week using a calendar. They use problem solving strategies and a monthly calendar to find a solution to the problem.
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Taxi Fare
Students discuss what they know about taxis and how they charge. They read the problem and work in pairs focusing their thinking on the repeating pattern of twos. They then share their solutions and conclude with some class practice...
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A thousand seconds
Pupils use seconds, minutes, and hours. They then discuss the size of a thousand. After that they read time in digital or analogue form.
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How Many Strips?
Second graders investigate the measurement of 1 meter. They predict and measure how many strips of paper it takes to make exactly one meter. Students devise and use problem solving strategies to solve the problem.
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The Farmer's Sheep
Students use problem solving skills, logical thinking, and their ability to work sequentially in order to solve an algebra problem. They listen to the problem read aloud by the teacher and devise a plan in order to solve the problem.
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Shopping
Students give change for sums of money. They also solve subtraction problems presented in different forms. The problem Students answer takes a look at a situation from three different perspectives.
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Grabbing CDs
Third graders determine the likelihood of an event. They randomly choose two CD's from a rack of eight. They determine all the combinations of CD's they can make and explain how they know when they have found all the combinations.
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QwikQure Algebra
Fourth graders are introduced to the problem using a bottle of medicine. They estimate the volume of the medicine and predict the instructions on the bottle. They then think about how they might solve the problem before asking them to...
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Parking Meters
Third graders are introduced to the problem with a short discussion about parking. They then solve with a partner. As they work ask questions that focus on the strategies they are using to make the calculations.
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Garry The Greengrocer
Fourth graders are introduced to the problem by weighing objects on the balance scales. Use weights in both pans. (If you don't have access to scales use 2 containers and a child acting as the balance.) They then listen to the problem...
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Adam's Watch
Third graders use their watches to tell the time while the teacher lists their responses on the board along with the reasons for them (set incorrectly, gain/lose time). They solve the problem in pairs and focus their thinking on the...