Curated OER
Newton's First Law
In this friction learning exercise, students will read about fluid friction and examples of fluid friction. Students will also explore the role fluid lubricants have in reducing friction between two surfaces. Then students will answer...
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Linear Systems: Orthogonality of Vector Spaces of a Matrix
In this vector spaces of a matrix instructional activity, students decompose any vector into two orthogonal pieces. They identify the nullspace, row space, and find a reduced echelon. This two-page instructional activity contains...
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Linear Systems
In this linear systems learning exercise, students explore the effect of two identical columns in a matrix on the null space of the matrix. They consider the column space of a matrix. Students compare the column space of a matrix to the...
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Reduction of Adverbs Clauses of Reason and Contrast: Worksheet #2
In this grammar worksheet, students learn about reducing adverb clauses to adverbial phrases. They then rewrite 3 sentences on their own using the information they learned.
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Reduction of Adverb Clauses of Time
In this grammar worksheet, students learn about reducing adverb clauses to adverbial phrases. They then rewrite 4 sentences using what they just learned.
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Oxidation-Reduction Example Problems
In this reaction worksheet, students assign the oxidation numbers to all the atoms in the given compounds and ions. Students determine whether an element is oxidized or reduced in the given reactions. This worksheet has 4 problems to solve.
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A Look at the Life That Electronics Lead
In this comprehension learning exercise, students fill in ways on a graphic organizer that people or companies can conserve energy, reduce waste or minimize the impact to the environment. Next, students solve 3 "environmental" math word...
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Light Pollution
In this light pollution worksheet, learners use a code to decode a message about light pollution. They name two things that can be done to reduce light pollution.
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Recycling
Fourth graders gain an awareness of recycling. In this science lesson plan, 4th graders become aware of how much garbage we can produce, identify landfills and their purposes, and explain how recycling saves energy and resources while...
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Courage to Be You: King Day (7th)
Students define discrimination and relate it to their own experiences. In this discrimination lesson, students discuss feeling like a stranger and complete a personal experiences worksheet. Students then find strategies to reduce or...
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The Seeds Tell the Story
Students explore sources of pollution runoff and actions that can be taken to reduce runoff. In this pollution lesson students complete a worksheet and see why bio-essays may provide a more realistic picture of toxicity.
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Designing More Effective Packages
Students make an environmentally sound package. In this packaging lesson students examine various types of modern packaging. The problem of waste is discussed leading into a discussion of waste reduction. The students choose an item that...
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Garbage Dump
Students are introduced to landfills and the importance of reducing garbage. In this Earth Day lesson, students collect garbage they find on the ground. They take it back to a plastic bin and attempt to bury all the garbage only to find...
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There's a Watershed in my Backyard!
Students explain what the term watershed is by creating a model. In this science, geography lesson, students demonstrate how the water moves in a watershed. Additionally, students learn about point source and nonpoint source pollution....
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War on Waste
Students take a closer look at food waste. In this global studies lesson plan, students perform a waste audit at their school and institute a lunchbox challenge to reduce food waste. Students may also complete the extension activities.
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All Wrapped up and Nowhere to Go
Students consider the impact of legislating exessive packaging. In this environmental issues lesson, students visit selected websites to discover information about packaging and UK laws to reduce it. Students...
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Wasting Times
Students examine Britain's waste management proposals. In this environmental stewardship lesson, students visit linked websites to gain an understanding of proposals to reduce waste in the nation.
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Homeless in America
Students explore society by analyzing current events. In this homeless epidemic lesson plan, students discuss the problem of people who don't have housing and the adverse affects on everyday people. Students identify ways to reduce...
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Convert: Percent to Fraction
In this algebra learning exercise, students convert percents to fractions by dividing by 100% and then reducing the fractions as necessary. There are 10 questions.
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Diabetes and Your Family
Students identify common symptoms of diabetes. In this adult health lesson, students discuss common myths about it and evaluate whether they are true or not. They suggest ways to reduce their risk from this disease.
CK-12 Foundation
Sums of Mixed Numbers: Split the Addition
Five questions challenge scholars to add mixed numbers. A tool creates a visual model that separates whole numbers from fractions parts. Problem types include fill in the blank, true or false, and discussion.
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Grocery Store Bans Plastic Bags
Students participate in the paper vs. plastic bag debate, then read a news article about one grocery store that is banning plastic bags. In this current events lesson, the teacher introduces the news article with a debate and a...
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Milk Mon' Worksheet
In this recycling worksheet, students study items in a list and circle those that can go into the recycling bin. Students solve 5 recycling riddles, unscramble letters to find 6 recyclable items. Students write 4 ways that a milk carton...
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Out of Sight, Out of Mind
Students analyze and graph the waste created in a typical lunch period. They increase awareness of various types of garbage students create during a lunch period. They construct and label a graph of lunch waste. They brainstorm...
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