Curated OER
"Colors" a poem by Shel Silverstein
Students collect data, graph it, and use the data to find measures of central tendencies, and find probabilities.
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Egyptian Fractions
Sixth graders take a brief look at what is known about Egyptian Fractions. These are unit fractions - fractions whose numerator is one. We look at how fractions can be represented in terms of Egyptian Fractions. Finally we suggest a web...
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Graph Lab
Seventh graders explore bar graphs and pie charts. Given a pack of M&Ms, 7th graders explore the colors, sort the data in a frequency chart and then construct bar graphs and pie charts to categorize the M&Ms by color. Students...
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Use Proprotions To Solve Word Problems
Eighth graders explore ratios and proportions and how they are used in day to day life. As an activity, they find their own heart rate and then take a survey of other heart rates in the room. After organizing the data, 8th graders use...
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Decimal Fractions of a Set
Sixth graders practice problem solving equations of fractions, ratios and proportions, addition and subtraction stage 6 as well as advanced additive. Emphasis is placed on decimal fractions and then they convert fractions to decimals.
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Addition/Subtraction Strategies
Third graders recall all their addition and subtraction facts to 20. They use the relevant number strategy with whole numbers. Students are taught place value in relation to decimals, and identify 'which decimal is larger.' They...
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Equal Additions
Students explore the relationships between numbers through the use of "equal addition" and "equal subtraction." Through the use of number sense, they are able to computer addition and subtraction problems mentally. Individually,...
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Adding in Parts
Third graders are able to split whole numbers into parts. They make numbers up to a tidy number. Students add and subtract tenths to make a decimals number into a whole number. They are able to add whole numbers up to three digits.
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Scientific Observation of Force and Acceleration on an Object
In this force and acceleration worksheet, 8th graders answer ten questions based on two graphs. The first graph is a scatter plot, the second is a line graph.
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When Am I Ever Going to Use this?
Students solve problems using equations and properties of integers. In this algebra instructional activity, students solve problems using ratio and proportion and graph their answers on a coordinate plane. They solve word problems using...
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Visualizing Decimals
In this visualizing decimals learning exercise, 7th graders solve 14 different problems that include various forms of decimals. They fill in the missing hundredths parts on each number line. Then, students write the number the picture...
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Binary Operations
In this binary operations worksheet, 9th graders solve 12 different problems related to various binary operations. First, they determine whether the operation is commutative. Then, students name the identity element and explain why none...
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Probability - Mutually Exclusive Events
In this probability worksheet, students calculate the probability of given situations. They complete compound probability of independent events. This one-page worksheet contains six problems.
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Indirect Euclidean Proofs
In this indirect Euclidean proof worksheet, students write statements supporting the reasons for a given proof. This one-page worksheet contains ten problems.
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Probability - Mutually Exclusive Events
In this probability worksheet, students read story problems and compute the probability of specified events. This one-page worksheet contains six mutually exclusive scenarios.
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Introduction to Measuring the Forest
Students investigate how much wood is in a forest. For this forestry lesson, students calculate how much usable wood comes from the forest. They will read, Sizing Things Up from Trees + Me = Forestry, measure firewood piles, and create a...
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Introduction to Mendelian Genetics using Fiction
Students investigate Mendelian Genetics by studying the history of Mendel and what it was like to be a 19th century scientist. They read a pieces of fiction during this investigation.
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Regressive Taxes
Students explain that regressive taxes can have different effects on different income groups. They see how a regressive tax takes a larger share of income from low-income groups than from high-income groups.
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GUM: More, Less, or the Same?
Students confirm the law of conservation of matter by weighing chewing gum before and after it is chewed.
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What are the Chances: A Game of Chance!
Sixth graders experiment with dice, playing cards, pennies and computer-generated simulations to calculate probability. They use compiled data to make predictions.
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Pair 'Em Up!
Third graders verify the validity of Punnett squares. They simulate a real-world situation by drawing chromosomes from a paper bag and track the data.
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Who Gets Eaten? A Study of Natural Selection
Fourth graders represent a new predator on a population of colored worms. They mathematically determine the effect of the new predator on the survival and reproductive rates of the worms, simulating natural selection at work.
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Comparing Fractions
Students discuss the nature of fractions and compare fractions based on a similar whole to determine relative size.
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4 Month Budget Spreadsheet
Eighth graders create and maintain a spreadsheet budget based on a predetermined salary. They have an opportunity to make "investments and purchases." Budget records be kept for an imaginary 4 month period.
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