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Lesson Plan
Curated OER

Radioactive Decay

For Teachers 9th - 12th
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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Lesson Plan
Curated OER

Pigs, Goats and Sheep

For Teachers 8th - 12th
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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Lesson Plan
Curated OER

Radioactive Decay

For Teachers 9th - 12th
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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Worksheet
Curated OER

Volume

For Students 7th - 8th
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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Lesson Plan
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Solving Proportions Problems

For Teachers 6th - 8th
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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Worksheet
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Large Numbers Reasoning Questions

For Students 4th - 5th
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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Worksheet
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4 and 5 Digit Dividends

For Students 4th - 5th
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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Worksheet
Curated OER

Multiply 3-Digit Numbers by 2-Digit Numbers

For Students 4th
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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Worksheet
Curated OER

Problem Solving: Patterns in the Coordinate Grid

For Students 4th
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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Lesson Plan
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Wealth

For Teachers 3rd
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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Worksheet
Curated OER

Estimated Distances

For Students 3rd - 5th
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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Interactive
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Probability and Statistics: Post Test

For Students 5th - 6th
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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Lesson Plan
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Eating and Being Healthy

For Teachers 2nd - 3rd
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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Lesson Plan
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The Flag

For Teachers K
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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Lesson Plan
Curated OER

What are My Chances?

For Teachers 9th - 11th
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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Lesson Plan
Curated OER

Algebra Wizards

For Teachers 2nd
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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