Curated OER
Congruent Triangles
Tenth graders explore congruent triangles. For this geometry lesson, 10th graders investigate the conditions necessary to prove two triangles are congruent by SSS, ASA, AAS, or SAS.
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Geometry: Helix-a-Graph
Learners use geometry to create art. In this geometric graphing and patterns lesson, students create a helix-a-graph by plotting points on a grid that follow a certain pattern and analyze the drawing they created.
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Reinforcing Fractions Using a Fraction Calculator
Students complete fraction word problems using TI-Explorer Calculators.
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Measurement and Data Collecting using Image Processing
Students trace the route of the historical event and measure the distance over which the people involved journeyed. A data sheet be constructed outlining the location of events, and the speed with which the journey occurred.
PBS
The Big Picture-Economic Security in the Country and your Community
High schoolers explore economic security at the local and national level during the time period preceding the 2008 presidential election. They fill out surveys on their thoughts and concerns regarding the US economy, and watch a video...
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Mystery Spill
Students investigate the cause of birds dying in Monterey Bay. In this scientific research lesson, students use various resources, scientific investigations, and vector analysis to solve an environmental mystery.
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Simply the Best
Students determine whom they consider "the best" performer in a variety of entertainment industries and discuss how to accurately measure greatness. They create bar graphs comparing statistics of the 1975 Cincinnati Reds and the 1998 New...
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It's About Time!
Students examine the potentials, both positive and negative, of adapting an international 'Internet time' system. They create and solve word problems that require them to translate between the current time system and Internet time.
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Weight Training
Learners conduct a class-wide survey collecting, compiling, and analyzing data about fitness, weight loss, and body image issues. They analyze the relationship between exercise and diet in weight control.
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Prize Numbers
Students explore what a proof is, how and why mathematicians create them and compose essays on how reason and logic are employed in the workplace. They explore whether any three lines can make a triangle and attempt to verify Goldbach's...
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Extraordinary Extrapolation
Students study how scientists have estimated the maximum height to which trees can grow, and assess the reliability of interpolation and extrapolation techniques by making predictions with particular data sets and analyzing accuracy of...
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A Heated Discussion
Students compare the colloquial definition of temperature with the scientific definition. They, in groups, then explore the changes of water under different temperatures and calculate and compare their findings on three different...
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A Weighty Task
Students aim to explain the need for standardization of units of measurement. They pose their own standards for the value of a kilogram and compare them with the currently used standard.
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A Distant View
Students investigate the essential concepts of how lenses work to magnify vision, and then build simple telescopes to demonstrate their understanding. They write a description of how their telescope could be improved and how it works.
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Saving Private Pensions
Young scholars consider the importance of financial security after retirement, examine current problems with pension plans in the private sector, research different retirement options, and create a "How it Works" poster.
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Jet Who?
Students explore the emerging budget flight industry and the resulting increased competition among airlines. They compare a budget airline with a legacy carrier in terms of cost, corporate profile, flight statistics, amenities, and...
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Getting Out of Line
Students explore basic connections between graphs, tables, and symbolic representations for lines, parabolas, inverse models, and exponential models. One of the primary goals of this lesson is to help students begin to recognize patterns...
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The Games Robots Play
Students learn about how robots are programmed to play games. They then construct robot applications (basic computer codes) for playing tic-tac-toe comprised of if-then logic sequences. Students then compete in teams using their...
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College Costs are on the Rise
Students examine college costs in different states. In this college cost lesson, students create a table and determine the average cost of college for the states listed. They organize the data into measurement categories. Students create...
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Graphing Surveys and Analyzing Data
Students analyze data and graph the results of their surveys. In this statistics lesson, students create graphs using excel to make graphs to be able to better observe their data. They conclude how great we as unique individuals.
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Maximizing Your Efforts
High schoolers graph systems of equation. In this algebra lesson, students find where the lines cross and identify the type of solution. They analyze a graph and write the equation of the line.
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America's Civil Rights Movement, Activity Five
Students read and write poems for two voices about the Civil Rights Movement.
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Free Enterprise -- Product Cost
Learners are introduced to the concept of free enterprise. In groups, they discuss the price of various food items and decide on which item to produce. They calculate the cost of producing the item and share their results with the class.
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Introduction to Topographic Maps
Tenth graders create a topographic map and see how it represents different elevations. In this topographic maps lesson students read and interpret topographic maps.