Curated OER
Radioactive Decay
High schoolers explore what radioactive decay is and are able to relate it to the concept of half-life. They are given 100 green beads that represent radioactive atoms and 100 white beads that represent stable, non-radioactive daughter...
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Pigs, Goats and Sheep
Student are able to devise and use problem solving strategies to explore problems systematically and mathematically. They also form and solve various types of equations. This instructional activity requires some prior knowledge of...
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Radioactive Decay
Students generate a radioactive decay table for an imaginary element, use their data to plot a decay graph, develop the concept of half-life, and use the graph to "age" several samples.
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Volume
In this volume lab worksheet, students are guided through an experiment to determine volume of a liquid. Students determine water displacement. Students use a formula to calculate volume of a solid figure.
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Solving Proportions Problems
In this math worksheet, students compare the fractions while solving the proportions. They apply the comparisons to the 17 word problems.
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Large Numbers Reasoning Questions
For this large number reasoning worksheet, students answer 5 questions that require them to use large numbers such as 1,000,000. They answer multiple choice questions and explain their reasoning.
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4 and 5 Digit Dividends
For this dividend worksheet, students divide to solve 6 word problems. All problems have 4 or 5 digit dividends. Problems 1 and 2 have been started for students.
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Multiply 3-Digit Numbers by 2-Digit Numbers
By solving word problems related to the planets, 4th graders practice multiplying numbers with several digits. Using this learning exercise to solve problems involving 2 and 3-digit multiplication, students practice this skill. This...
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Problem Solving: Patterns in the Coordinate Grid
Coordinate graphs can be used for a variety of purposes. In this basic worksheet on coordinate graphing, 4th graders learn how to identify points and patterns on a graph. This worksheet could be used as a follow up to a lesson on...
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Wealth
Third graders read the story The Day I Was Rich and learn about the role of money and taxes. In this money lesson plan, 3rd graders count large sums of money, group them, and give it away in the form of taxes. They discuss wealth and how...
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Estimated Distances
In this estimating distances worksheet, students examine a mileage table and respond to 6 questions that require them to use their subtraction skills.
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Probability and Statistics: Post Test
In this probability and statistics learning exercise, students complete a set of 10 multiple choice questions, clicking on an answer link to view correct answers.
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Eating and Being Healthy
Students investigate healthy lifestyles by examining the food pyramid and performing physical activities. In this personal health lesson, students discuss their own diets and how it compares to the food pyramid. Students participate in...
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The Flag
Students see the flag as a symbol. In this flag lesson, students look at the flag to see different patterns and shapes. They review the importance of the flag and its meaning to the United States.
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What are My Chances?
Students calculate the chance of an event occurring. In this statistics activity, students use combination and permutation to calculate the probability of an event occurring. They differentiate between theoretical and experimental...
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Algebra Wizards
Second graders are exposed to algebraic thinking by exploring the concept of a variable. They tell how many years have passed since they've seen a favorite teacher and then examine how they arrived at this number. They write equations.
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