Curated OER
Can Chromatography Separate A Pigment?
Students separate a mixture of pigments with ion exchange chromatography and predict whether the ion-exchange matrix is positively or negatively charged based on the type of pigment bonded to the matrix.
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It Won't Budge: Balloon
Eighth graders use the scientific method to discover why a balloon is not inflated.
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Donut Dinero
Students set up a classroom currency exchange and explore the idea of bartering to get what they want. They create a monetary unit that is based on fractions and multiples of a standard unit, and compare this system to the U.S. monetary...
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Basic Electric Circuits
Students calculate the resistance across a bank of resistors in a series, parallel and combined circuit. Using new vocabulary words, they define and describe them in a scientific manner. After stating Ohm's Law, they solve electrical...
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Investigating the Idea of Tan
Fifth graders use tan to solve problems involving right-angled triangles. They solve equations of the form tan(8) =a, for a between 180 degrees and 360 degrees. They state the value of tan (8) in special cases.
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Mixing Colours
Students explore ratios and their relationships to fractions. They explain the process of identifying ratios and describe their comparison. Students write ratios as fractions and by using colons. They convert the ratios to percents.
Pennsylvania Department of Education
Creating Polygons
Students describe, make and compare polygons. In this creating polygons instructional activity, students identify properties of quadrilaterals and describe common features of two dimensional shapes.
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Alfy plays "Time Flies"
Third graders use the Internet to go to a math web site to explore, practice and play time telling exercises. They play a time game by moving the clock arms to match a time presented on a button.
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Inventors Timelines
Young scholars create a class timeline using the patent year for their selected inventor or invention. Using a piece of yarn, they physically create a timeline, and create and answer math word problems using the years from the timeline.
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Exploring Infrared Image Technology
Students view infrared images of a blowing hair dryer, a Popsicle, and a toaster. They discuss the images and ways they are different than visible light images. Students view a temperature scale and discuss which parts of the item are...
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Metric 1 Word Search Puzzle
In this math instructional activity, middle schoolers look for the words in the puzzle that are related to the theme of the word search. The vocabulary and spelling are emphasized.
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Average
In this number averages worksheet, students review how to find the average of a given set of numbers. Students then complete three word problems by averaging numbers.
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MOBILITY, Traveling Lightly: What’s My Footprint?
Students calculate their carbon footprint. In this environmental technology lesson, students listen to a lecture on climate change. Students brainstorm solutions to reduce environmental impact based on travel options. Students calculate...
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CheMATHstry That Sticks Right to You
Young scholars find the percent composition of sugar in the gum. In this chemistry lesson, students calculate percent error from the experiment. They use dimensional analysis to convert between units.
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Distribution of children living at home
Students examine census data to evaluate the number of students of certain ages living at home. This data is then used to determine the need for day care, or other social programs. They use this information to explore social policies.
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#22 Frames of Reference: The Basics
Young scholars explore the concept of frames of reference in physics.
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Frames of Reference: The Basics
Students learn the concept of frames of reference in physics. They examine how two frames of reference, each moving with respect to the other with a constant velocity v (constant speed, constant direction).
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Using the Pythagorean Theorem
Students apply the Pythagorean Theorem to solve real-world problems. They draw diagrams based on written descriptions to calculate the examples.
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Dissolved Oxygen
Students discuss the relationships between dissolved oxygen in a stream, stream temperature, organic waste loads, and stream conditions by studying and using a model of dissolved oxygen in the stream.
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Transformations
Tenth graders recognize, perform and derive rules for basic transformations including translation, reflection and rotation. They also consider compositions, a combination of two or more basic transformations. Students explore both...
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How Does Water Cause Weathering?
Fourth graders explore the weathering process of water on rocks. They observe how water and friction from other rocks cause them to weather. Students discuss examine and discuss various rocks found on the playground, beach, etc. They...
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Greenhouse Effect and Temperature
Students look at a visualization of absorbed solar energy and discuss its role in maintaining surface temperature. They examine greenhouse effect and its role in maintaining a climate in which humans can survive.
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Estimating Volumes Of Household Containers
Students engage in a the estimation of volume for household containers and focus upon the usage of the metric system. They practice identifying the shapes that seem familiar and match shapes with quantities. Students interact with others...
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Atmospheric Shielding from Radiation II
In this radiation worksheet, students calculate the total shielding along several specific directions defined by the angles. This worksheet has 3 problems to solve.