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Examining Estimation
Second graders participate in various activities which help them explain and explain the difference between an estimate and an exact amount.
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Are We There Yet?
Students estimate the time needed by the Corps of Discovery to complete its expedition. They problem solve and estimate the distance covered by the Corps on its expedition. They compare their findings to the expedition's actual rates...
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Fraction Models
Third graders make models of fractions and mixed numbers. Using fraction strips and drawing pictures, 3rd graders develop conceptual understanding of the equivalent forms. Students use the number line to represent and compare...
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Estimating Sums and Differences
For this math worksheet, students learn to estimate sums and differences by completing step by step exercises. There is one word problem which is the example, and then students can choose from other estimation activities to do with a...
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What is the connection between rice and estimation?
Sixth graders investigate estimating. In this estimating lesson, 6th graders estimate how much rice is eaten around the world. Students estimate the percentages of rice eaten by other countries. Students compare rice production to other...
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Adding Decimals
In this adding decimals worksheet, learners solve 10 problems in which decimal numbers to the hundredth place are added. Some problems will need to be rewritten vertically.
Pennsylvania Department of Education
Adding Common Fractions
Fourth graders estimate various measurements. In this lesson on measurement, 4th graders estimate the length and mass of multiple objects. Students discuss the difference between a guess and a reasonable estimate and discuss using...
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Let's Measure
Third graders practice measuring different objects. They discover the concepts of ratio and proportion and practice converting numbers into the correct unit. They read stories as well to help them with the concepts.
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Metric Units of Mass: Practice
In this metric unit worksheet, students compare metric units, finding missing numbers, then choose the best unit for measuring given items. Students then estimate. Houghton Mifflin text is referenced.
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Sum of the Parts
Fifth graders build objects using various materials. They estimate the weight of the object using individual building pieces. Then they weigh the actual object and then tear it apart and weigh the pieces. They compare the two weights.
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Subtracting Decimals
In this subtracting decimals worksheet, students solve 10 problems in which decimal numbers to the hundredths place are subtracted, sometimes with regrouping. The problems are already properly written with decimal points aligned.
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Investment Plans
Students explore investment plans. They write the explicit and recursive forms of the sequence of an investment and compare the amount to the continuously compounded interest formula for the same time period, interest and principal....
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Scientific Notation
Sixth graders are introduced to and practice the concept of scientific notation. Following a brief description of scientific notation and a demonstration of how to convert numbers to scientific notation, 6th graders practice writing...
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How Many in a Minute
Young scholars estimate what they can accomplish in a minute. In this estimation lesson, students guess how many jumping jacks or stars they can draw in a minute. They get timed and see how close they are to their prediction.
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A Matter of Proportion
Students measure the relative heights of the mosaic giraffe and its trainer and compare their proportions to an actual giraffe and zoo trainer.
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Map Your House
Learners are introduced to the concepts of maps as scale models of the whole. After a brief lecture on creating and using an accurate scale when drawing and reading a map. They create a scale drawing of the floorplan of their homes.
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Ratios
Students identify ratios to compare quantities and understand proportions. In this math lesson plan, students work in groups and use facts from the Holocaust to calculate ratios and percentages.
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Approximating Measures
Fourth graders complete a worksheet about approximate measurements. In this lesson on approximation, 4th graders compare the wingspan of a given bird to the wingspan of other birds and classroom objects.
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Seesaws
Learners make direct comparisons between objects using balance and spring scales. They also are encouraged to estimate which object is heavier by holding the objects before using the balance scales. Comparing the masses of objects is the...
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Saving Money Through Mathematics
Third graders discuss light sources and collect data about energy sources. They compare data and create a multiple line graph showing energy used by light sources for each student in the group. They present their graphs and write a...
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The Price Is Right - Grocery Store Prices
Eighth graders use the unit price to compare which local grocery store has the best prices. Assign students to work with a partner and a role. One person is the recorder and the other is the mathematician.
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Get In Line!
Young scholars compare and order fractions and decimals using a number line. They use rules of conversion to determine equivalencies competing problems accurately and plot points on the number line that represent the correct order of the...
Pennsylvania Department of Education
Adding and Subtracting Three-Digit Numbers by Jumping
Second graders use data to graph information and draw conclusions. In this lesson on data analysis, 2nd graders practice gathering, sorting, comparing, and graphing data. Students differentiate data that can and cannot change over time.
Curated OER
Differentiate Elements, Compounds, and Mixtures
Young scholars examine the differences between elements, compounds and mixtures. Using diagrams, they compare and contrast atoms and molecules and describe various chemical reactions. They distinguish the differences between ionic and...