Change Teacher Resources

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Learners explore the concept of GCD and LCM.  In this GCD and LCM lesson, students use a CAS program on their graphing calculator to determine the LCD and GCD of polynomials and large numbers.  Learners use the GCD function to determine the GCD of various fractions such as 3/4 and 17/3.
Students bounce various tennis and racket balls, predicting and recording how fast they can bounce and catch them. They graph the results on a coordinate plane. And then, they compare their graphs with one another, analyzing how different variables affected their results. Finally, students identify how temperature can change the elasticity of materials.
Students analyze a graph representing college tuition increases, consider the possible causes and consequences of these tuition increases and collect data on tuition changes at colleges in the United States by region and graph the data.
Students share opinions about importance of milestone events they might host or attend. They then prepare estimated budgets for parties based on established budget totals, and compare their estimates against the real costs.
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.
High schoolers create a survey to explore people's perception of beauty. In this biology lesson, students explain how an animal's appearance helps it survive. They analyze survey results and present findings in class.
Students explore the concept of building a playground. In this building a playground activity, students find the maximum area given set parameters. Students build the playground so that all the equipment fits. Students work in groups to find the biggest area that fits all the equipment.
This lesson uses GeoGebra on the Web, or Geometer's Sketchpad to investigate and identify the different properties of sines and cosines. The class learns how the laws of sine and cosine relates to a right triangle and a non-right triangle. They practice using the Pythagorean Theorem to help identify the different ratios of the triangle.
Students calculate simple probabilities using mathematics then roll dice to test their predictions.
First graders explore patterns. They look for patterns in number problems and use algebra as a means of solving general problems. Students devise a strategy to solve the number problem.
Students examine what might be in store for Wall Street following the NASDAQ's 547.57 point plunge on Tuesday, April 4, 2000. They evaluate how they might manage a heavily laden high-tech portfolio before deciding how to invest in the market.
Students explore the mathematical probabilities involved in gambling and how these factors affect people's behavior. They work in pairs and conduct and experiment pertaining to blackjack. The class creates a graph showing the trends found.
Students design a new playground environment after reading an article from The New York Times. Students incorporate math into the playground design by using precise measurements and prepare a scale drawing with key.
Begin this activity by estimating the cost of a college education and comparing it to actual data. After reading an article, high school seniors discuss the processes of the college loan corporations. They listen to a lecture about how to wade through all of the information and work together to create a brochure to help other students.
In this difference of equations worksheet, students solve and complete 49 various types of problems. First, they obtain the solution of any linear homogeneous second order difference equation. Then, students apply the method of solution to contextual problems. In addition, they use generating functions to solve non-homogeneous equations.
Learners perform an experiment to test the value of technology to mathematics, and practice using the scientific method. They write lab reports in which they summarize their findings and evaluate their methods.
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.
Students match scenarios with the terminology related to stock market fluctuations. They read an article, answer discussion questions, create a terminology poster, and write an essay.
As a cross-curricular lesson, your class examines the issues of gender discrimination, careers, and gender roles. They read and discuss an article, prepare a proof of the Pythagorean theorem as a class, and develop a creative representation of Pythagoras' ideas.
Students explore how locations around a meteorite provide information about the meteorite's orbit. They explore triangulation techniques and create imaginary cities in which meteorites are ensconced.

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