Curated OER
How Big is a Foot?
First graders practice nonstandard measurement and estimating and measuring lengths of objects.
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Sort It Out! Size It Up!
Second graders, in groups, estimate amounts in various jars. They sort each jar from least to greatest amount.
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Out of This World
Students are introduced to the solar system and its place in the universe. They begin to grasp the idea of very large numbers by estimating and computing how long it take the class to make a million x's.
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Rounding Numbers
Fifth graders demonstrate rounding numbers to a sensible level of accuracy and in context. They discuss rounding numbers for newspaper headlines, complete a table of grocery items that need to be rounded, and observe and demonstrate...
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Skip it to multiply it
First graders make sensible estimates and check the reasonableness of answers.
They make up, tell and record number stories up to 9 about given objects. They skip count in twos, threes and fives.
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Multiplying by Two-Digit Numbers
In this mathematics worksheet, 6th graders find the product of a given equation. Then they use an array and find the sum of the partial products. Students also use zeros as place holders when necessary.
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Two-Digit Quotients
In this mathematics worksheet, 6th graders find the quotient for each problem. They estimate first and identifying which number they will use. Then, students divide the problem and multiply to check.
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Multiplying Decimals
In this mathematics worksheet, 6th graders estimate the product and use an array to help them find the product. Then they find the exact product and locate where to put the decimal point in each.
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Addition, Subtraction and Estimating
In this addition, subtraction and estimating worksheet, learners answer 13 questions pertaining to addition, subtraction, estimating and even/odd or 2/3-digit numbers. They can click on the Check box to find out if their answers are...
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Estimating and Subtraction
For this estimating and subtraction worksheet, learners answer 11 subtraction questions in which they round to estimate the answer and then solve. The last question is a subtraction question that does not involve rounding. They can click...
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Estimating Quotients
In this estimating quotients worksheet, 4th graders estimate the quotient in 12 math problems and write the numbers they used on the lines provided.
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Measurements In The Metric System
Third graders measure items around the classroom using meter sticks. In this measurement lesson plan, 3rd graders are taught how to measure the length of an item with a meter stick. Inches, centimeters, millimeters, decimeters, and...
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Rounding and Estimating before calculating with a Calculator
In this rounding worksheet, students solve six problem sets concerned with rounding and estimating. Students first estimate what the answer should be and then carry out the calculations using a calculator. Solutions are...
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Rounding and Estimating
In this rounding and estimating activity, students solve 18 rounding and estimating problems. Students solve problems without a calculator.
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Estimating and Counting Money
Students explore the concepts of estimating and rounding. In this estimating and rounding lesson, students play a game of tic-tac-toe. Students pick items and must estimate their cost by rounding. Students estimate the costs of pretend...
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Initial Fraction Ideas Lesson 19: Overview
Learners read different scenarios and discuss how to add fractions. in this addition of fractions lesson plan, students learn how to add unlike fractions and practice 4 problems.
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Measuring Weight
Students use tables showing the ratios between ounces and pounds, grams and kilograms, and pounds and kilograms. They estimate whether an object should be weighed in ounces or pounds and whether an object should be weighed in grams or...
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Further Rounding
In this rounding off worksheet, students determine if 8 statements could be rounded off to the nearest ten, hundred, thousand, ten thousand, hundred thousand or million. Students draw and complete a table of 5 numbers, rounding the...
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Estimate and Count
In this estimate and count worksheet, students examine 4 sets of objects. Students record an estimate for each set and then record the actual count for each set.
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What Can You Do In One Minute?
In this timing worksheet, students discover what tasks can be done in one minute. Students solve 5 problems in which they time themselves for one minute doing different tasks such as: building a cube tower, keeping a ball up in the air,...
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Quick Quiz: Estimating and Rounding
For this rounding and estimating worksheet, 5th graders solve 8 addition, subtraction, and rounding problems. Problems ask students to solve, round, estimate, or write the words in number form after reading the word form.
Curated OER
Estimating
In this estimating worksheet, students estimate the four digit numbers given to them to the nearest thousand. Students complete 10 problems total.
International Technology Education Association
Sizing Up the Clouds
How much rain can that cloud make? Through a simulation, the class estimates the amount of candy rain contained in different cup clouds. After probing the clouds using different methods, class members adjust their estimates. Participants...
Teach Engineering
Show Me the Money
Class members learn how to estimate the total costs involved to design and build a bridge by including design, material, equipment, and labor costs. The activity includes a discussion about the trade-off between cost and aesthetics.
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