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K–12 teaching and learning · from the UNC School of Education

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Graphing quadratic equations: This lesson will help students quickly graph a quadratic equation. It will also help them to understand the purpose of completing the square.; Format: lesson plan (grade 9–12 Mathematics); By Kathy Schadt.

Investigating linear equations: Using a graphic calculator to compare the slope and y-intercept of lines to understand the slope-intercept form (y = mx+b) and what effect each has on a line.; Format: lesson plan (grade 8–12 Mathematics); By Misty Jarman.

Space Shuttle O-ring failure: Students will use a TI82 or TI83 calculator to construct a scatterplot, find the equation of the least-squares regression line for a set of data, find the coefficient of determination, and make predictions by using the line.; Format: lesson plan (grade 9–12 Mathematics); By Brenda Goforth.

LEARN NC, a program of the University of North Carolina at Chapel Hill School of Education, finds the most innovative and successful practices in K–12 education and makes them available to the teachers and students of North Carolina — and the world.