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 Logarithms Demystified This lesson from Illuminations asks students to make and use slide rules to discover the properties of logarithms. The class will use rulers to add and subtract visually, which will add to the depth of their mathematical reasoning. The technique of using slide rules in this manner reinforces the hierarchy among the operations of addition, multiplication, and exponentiation. The lesson is intended... http://illuminations.nctm.org/Lesson.aspx?id=3024
 Making Sense of Percent Concentrations: Mix It Up This unit from Illuminations includes activities that help students explore percent concentrations. Two lessons are included. "Mix It Up," which involves using two colors of beads to form two different percent mixes. The class will develop a formula to determine the final percent mix. The second lesson, "Don't Freeze the Engine," which uses an antifreeze chart to analyze how much antifreeze... http://illuminations.nctm.org/Lesson.aspx?id=2137
 Light It Up This math lesson from Illuminations helps students understand rational functions. The material uses the real-world problem. Students will write rational functions that model problem situations and use rational functions to solve those problems. Questions for students are included. The lesson is intended for grades 9-12 and should require 2 class periods to complete. http://illuminations.nctm.org/Lesson.aspx?id=1968
 Linear Partial Differential Equations This course, presented by MIT and taught by professor Matthew Hancock, covers the partial differential equations of applied mathematics, including diffusion, Laplace/Poisson, and wave equations. Methods and tools for solving these equations are also taught. The course includes lecture notes as well as assignments and exams with solutions. MIT presents OpenCourseWare as free educational material... http://ocw.mit.edu/courses/mathematics/18-303-linear-partial...
 Street-Fighting Mathematics This course, presented by MIT and taught by professor Sanjoy Mahajan, teaches guessing results and solving problems without having to do a proof or an exact calculation. The material is useful for students who have a basic knowledge of algebra, trigonometry, and single variable calculus. Assignments and solutions are included. MIT presents OpenCourseWare as free educational material online. No... http://ocw.mit.edu/courses/mathematics/18-098-street-fightin...
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