Curated OER
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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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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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.
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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...
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Marvelous Mathematics
Students make a table on the computer, but create fractions and equivalent fractions through the use of color. They are able to manipulate fractions in order to gain a greater understanding of the meaning of whole number that is broken...
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Pecan Power
Students study the origins of pecans and complete a bar graph from the data they have discovered. In this pecan lesson plan, students draw pecans, discuss a pecan time line, and draw a bar graph comparing Arizona pecans to other states.
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Approximating Pi
Learners approximate Pi using the lower and upper bound for the constant. In this algebra lesson, students work in groups of two to graph a circle and approximate Pi using the circumference. They repeat their estimation until they come...
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Frontier Wars of the 1790s
Students explore the frontier wars of the 1790s. After researching one battle, teams of students prepare a presentation for the class. Students compare and contrast the Columbian Tragedy with "broadsides" that were printed to announce...
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The Estimation Station
Students challenge "common knowledge" against newly learned estimation strategies and put those strategies into use. They consider variables in estimating different groups of objects and practice skills of representing numbers.
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Approximate Solution to an Equation
Students solve equations through trial and error. In this algebra activity, students first estimate their answers and then calculate it to check their work. They solve problems involving roots and integers.
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The Magnificent Medici
Students watch a video about the internal power struggles of the Medici family of Renaissance Italy. They compare the Medici family to the Mafia and produce a written response to the film.
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Healthy Snacks. Healthy Packaging
Fourth graders research how to select the most cost-effective snacks. In this consumer practices lesson, 4th graders compare packaging labels and come to conclusions on how cost effective the product is. Students discuss their findings.
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Why NP Min?
Students calculate the normal distribution. In this statistics instructional activity, students use the normal distribution to estimate binomial distributions. They define when to use NP and n(1-p) to make approximations.