Curated OER
Identifying Relative Value of Pattern Blocks
Young scholars assign value to different shapes of pattern blocks, and estimate values and use process of elimination to determine values. In this pattern block values lesson plan, students trace each block on a worksheet and use 5...
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Quadrat Sampling 101
Students explore the population of grass plants in a given area. They plan and conduct a sampling activity to estimate the population of dandelions or the number of grass blades on the school grounds.
Curated OER
Estimating on a Number Line
In this number line worksheet, students draw an arrow to show where 5 numbers can be found on a number line and then write what the number is that each arrow is pointing to on three number lines.
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Rounding Up To Three Decimal Places
In this decimal rounding learning exercise, students round up in 52 problems. They round up using the numbers that have three decimals places.
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Practice With Decimals
In this decimal instructional activity, students solve decimal problems, estimating, balancing a checkbook, and finding the cost of a car using a given chart.
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Guess The Weight
For this weight worksheet, students match pictures of products with their correct weights given, 11 total. An answer key and reference web site are provided.
Pennsylvania Department of Education
How Many Ways?
Students estimate the amount of money they have in groups of pennies, nickels, and dimes. In this money lesson plan, students then count up the amounts they have and exchange money amounts.
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Lincoln Index
Students use a similar method to the Lincoln Index to estimate a population size.
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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.
Curated OER
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.
Curated OER
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.
Curated OER
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.
Curated OER
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...
Curated OER
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.
Curated OER
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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