Worksheet
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Adding or Subtraction Algebraic Fractions

For Students 9th - 11th
In this Algebra I/Algebra II worksheet, students add and subtract algebraic fractions and reduce the answer to lowest terms.  The two page worksheet contains a combination of eleven multiple choice and free response questions. ...
Lesson Plan
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Junk Mail

For Teachers 3rd
Third graders consider the impact of junk mail on our natural resources and landfills. They collect their families' junk mail for a week and explore ways to reduce junk mail, and write a book that explains the importance of trees in our...
Lesson Plan
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Hamburger Lesson

For Teachers 6th - 8th
Students examine fractions in this activity. They practice with how to reduce and perform operations on fractions.
Lesson Plan
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Energy Conservation

For Teachers 8th - 9th
Students discuss the different uses of energy. They examine the consumption percentages to do household tasks. They discover ways to reduce their energy consumption.
Lesson Plan
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Energy Efficient Appliances

For Teachers 6th - 9th
Learners use the Internet to research energy efficient appliances. They discover tips on how to save energy in the home and how to read the EnergyGuide labels. They also examine ways to reduce the amount of water that is used.
Lesson Plan
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Dimming The Sun

For Teachers 5th - 8th
Students review the meanings of global warming and global dimming. While watching a video, they take notes on different aspects of the issue. In groups, they develop a list on what can be done to reduce global dimming. They...
Lesson Plan
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Why Do We Suffer From The Rights Of Others?

For Teachers K - 8th
Learners examine how diversity within populations has caused problems. In groups, they develop their own definitions of racism and discrimination. They participate in role-plays in which they gather the appropriate techniques to deal...
Lesson Plan
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Air Matters

For Teachers 6th - 8th
Students research the affects that particulate matter has on the quality of our air and our health. Students analyze a streaming video on air pollution and complete an internet research assignment to find ways to reduce particulate...
Worksheet
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Introduction to Oxidation and Reduction

For Students 10th - Higher Ed
In this elements worksheet, learners learn the rules for assigning oxidation numbers and then practice using these rules. Students use oxidation number to determine if a substance has been oxidized or reduced. This worksheet has 14...
Worksheet
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Dividing Mixed Numbers

For Students 6th
In this mixed numbers worksheet, 6th graders solve 20 different problems that include the division of mixed numbers. First, they change each mixed number to an improper fraction. Then, students multiply the reciprocal of the divisor,...
Worksheet
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Square Roots

For Students 9th
In this square roots worksheet, 9th graders solve 10 different problems that include simplifying with negative numbers. First, they identify the negative number in each equation and pull out from under the radical sign as i. Then,...
Worksheet
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Chemistry Quiz 4-Redox Reactions

For Students 10th - Higher Ed
For this oxidation/ reduction worksheet, students solve eight multiple choice problems related to redox reactions. They determine half reactions, they calculate standard cell potentials, they identifying oxidizing and reducing agents and...
Lesson Plan
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Getting Active in the Census

For Teachers 9th - 12th
Students learn why the census makes a difference. In this U.S. Census lesson plan, students identity ways to participate in the 2010 Census while they understand the need the need for citizen action to reduce the risk of undercounts.
Lesson Plan
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Bike-Sharing Catches On

For Teachers 2nd - 6th
Students discuss how people are reducing their fuel consumption, then read a news article about a new bike-sharing program in Washington, D.C. In this current events and alternative transportation lesson, the teacher introduces the...
Lesson Plan
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Illuminating Climate Change: Connecting Lighting and Global Warming

For Teachers 9th - 12th
Learners analyze energy usage and connect energy usage to fossil fuel consumption. In this global warming and pollution instructional activity, students what fuels are used to generate electricity and how much CO2 each fuel produces,...
Lesson Plan
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An Introduction to Inclined Planes

For Teachers 1st - 3rd
Students investigate the properties of inclined planes and how implementing them can reduce the force necessary to lift objects off the ground. In this inclined planes lesson, students are introduced to the concept of simple tools and...
Lesson Plan
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It Won't Last Forever

For Teachers K - 5th
Students investigate the recycling process. In this recycling instructional activity, students set up a classroom program for recycling and set up recycling bins in various areas of the school. Students investigate other options to...
Lesson Plan
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Can The Radon Problem Be Fixed?

For Teachers 7th - 10th
In this radon worksheet, learners analyze their homes to identify sources of radon in their homes. They determine the best mitigation strategy to be used to reduce the radon and they discuss the advantages and disadvantages of each. They...
Lesson Plan
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Elasticity and Collapse

For Teachers 9th - 12th
Students discuss the oil crisis and a future world without oil. In this oil lesson, students watch videos online based on the reduced oil supply. They discuss how their regional community depends on oil and what would happen if the oil...
Lesson Plan
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World Without Oil

For Teachers 4th - 6th
Students discover the world of fossil fuels and oil shortages.  In this world economy lesson, students read articles on the Internet discussing the world's dependence on oil and the possibility of an extended oil shortage....
Interactive
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Circuits- Lock-out/ Tag-out

For Students 10th - 12th
In this circuits worksheet, students answer eight questions about different types of circuits, grounding cables to reduce electric shock, circuit breakers and locking and tagging a disconnect device.
Lesson Plan
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Let It Roll

For Teachers 4th - 6th
Students experiment in order to see how ball bearings work. In this science activity lesson, students conduct an experiment where they make and examine a ball bearing. Students brainstorm other examples of ball bearings and discuss...
Lesson Plan
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Religion in Social Change: What's God Got To Do With It?

For Teachers 8th - 9th
Learners determine how religion influences social change. In this religion and social change lesson, students examine how the religious beliefs of Mohandas Gandhi and Martin Luther King, Jr. were inspirational as they worked to reduce...
Lesson Plan
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Water Wars: Responsibility in the Age of Globalization

For Teachers 7th - 12th
Students explore the concept of water as a resource and as a human right. In this conservation lesson, students record and chart personal water usage and consumption then brainstorm ways in which to responsibly reduce water waste.

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