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Exploring Special Segments in Triangles

For Teachers 9th - 12th
Young scholars discover that four special segments have a common intersection point. They identify the position of the intersection point in triangles. They produce conjectures about areas of the divided triangles.
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Lesson Plan
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Fashion Day

For Teachers 8th
Eighth graders practice using basic measurements to solve word problems.They also investigate finding the perimeter of different polygons and define the characteristics to classify the shape as a polygon.
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Teaching the Tr'panier Trapezoid Kite

For Teachers 3rd - 6th
Students analyze how the parts of a system go together and how these parts depend on each other. They comprehend the forces in terms of strength and direction. Students observe, measure and describe weather indicators.
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Astronomy With a Stick

For Teachers 9th - 12th
Young scholars find the altitude of the Sun at 10 A.M., at solar noon, and at 2 P.M. by measuring the height of the gnomon and the length of the shadow at each time. They record the measurements in their notebooks for later conversion.
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Water Quality Monitoring

For Teachers 6th - 12th
Students comprehend the four parameters of water quality. They perform tests for salinity, dissolved oxygen, pH and clarity or turbidity. Students comprehend why scientists and environmental managers monitor water uality and aquatic...
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Design a Paraplegic Equestrian Saddle

For Teachers 9th - 12th
High schoolers investigate a problem and background information including the typical capabilities /limitations of a paraplegic. They develop an understanding of the attributes of engineering design.
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Geo-Vistas

For Teachers 3rd - 5th
Students create a geometric cardboard sculpture covered with personal drawings.
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Chesapeake Bay Population Studies

For Teachers 9th - 10th
Pupils determine how to use a quarter meter quadrant to find population density, relative density, frequency and how to calculate a diversity index while participating in a virtual field trip. They study how to establish a Correlation of...
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Trigonometric Applications Outside the Classroom

For Teachers 5th
Fifth graders describe and demonstrate how trigonometry can be used to find the height of a tall building or tree. They describe and demonstrate how trigonometry can be used to find the height of a high hill, or other high object where...
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How much room?

For Teachers 4th - 5th
Students examine the amount of usable space that exists in their classroom using square meters and square centimeters. They apply the information to predict the ideal size of a classroom.
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Martin Luther King Internet Photo Timeline

For Teachers 3rd - 6th
Students create a photographic timeline of the events in the life of Martin Luther King Jr. Working in small groups, they use internet research to find photos documenting the major events of his life. Their photos are printed and glued...
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Lift vs. Airspeed

For Teachers 10th - 12th
Students, after reading the explanation given below, use FoilSim and a graphing calculator to complete the activity to determine the relationship between airspeed and lift of an object by interpreting data.
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Using 3-D Models for Code Validation with FoilSim

For Teachers 9th - 12th
High schoolers use FoilSim to complete the activity to create tables of data sets comparing the lift values for a 3-D model of a symmetrical wing section to the values predicted by the FoilSim software.
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Lift Equation Problem Set

For Teachers 9th - 12th
Students, after reading an explanation from a NASA Web-based textbook, demonstrate an understanding of the text by using it, along with FoilSim, to complete an activity to graph and interpret the lift equation.
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Seasons' Journey : Putting it All Together

For Teachers 3rd
Third graders complete a diagram of the revolution of the earth around the sun and write a one paragraph explanation of the factors that cause seasons.
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Seasons' Journey: As the World Turns

For Teachers 4th
Fourth graders explore the earth's revolution around the sun and the changes in weather that follow this motion.
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Insects and Spiders

For Teachers K - 4th
Young scholars make either and insect or a spider using materials their teacher provides. They then draw of picture of their organism and defend why it is either a spider or an insect.
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Maximum Power Point

For Teachers 11th - 12th
Students investigate how to optimize the power output of a photovoltaic cell using a home-made gnomon stand. They use data collected to create current-voltage and power-voltage curves to determine the "maximum PowerPoint," (MPP) at which...
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Worms and more

For Teachers 3rd - 5th
Learners have early length experiences must develop an awareness of what length is, and of the range of words that can be used to discuss length. Young children usually begin by describing the size of objects as big and small. They...
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Houses

For Teachers 3rd
Third graders use a number of problem solving strategies in this unit of lessons. They determine how to draw and model three-dimensional objects, use co-ordinate systems, determine probability of events, and identify paths of simple...
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What is s and t?

For Teachers 9th - 12th
Students formulate and solve various types of equations. They become familiar with different types of patterns and apply the knowledge to solving mathematical problems from analyzing them.
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Which Wrap Is Wrapped Right?

For Teachers 10th - 12th
Students investigate the integrity and strength of different types of food wraps. They test the wraps and create a graphic organizer for the data. Once it is organized then a lab report can be written. The lesson contains background...
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Signal Flags

For Teachers 4th - 6th
Students examine the use of signal flags on vessels. They use measurements and symmetry to create their very own signal flag. Students work together and as individuals to solve problems and express their ideas.
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Lesson Plan
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Math: Investigating Triangles

For Teachers 10th
Tenth graders identify the trigonometric ratios for right angled triangles. Through independent investigation, they discover the constancy between the ratios of any two sides of similar triangles. In an alternative method, 10th graders...

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