Geometer’s Sketchpad Wallpaper
Target Audience: An entry geometry class, either honors 8th grade or early high school.
Goal/Idea: To have students understand rotations, reflections and translations. Students will design a geometric “wallpaper” and apply translations to the design.
Resources: Geometer’s Sketchpad software
Standards: G.2.4: Apply transformations to polygons in order to determine congruence, similarity, symmetry, and tessellations. Know images formed by slides, flips, and turns are congruent to original shape.
Linear Equations in slope-intercept form
Target Audience: An Algebra I class, early in the class or semester.
Goal/Idea: To have students understand slope intercept form and how the slope and y-intercept change the look of the line. Students will analyze sets of equations where slopes, or y-intercepts vary. This will allow students to see how graphs change, by holding variables constant.
Resources: Graphing calculators, overhead, and overhead calculator.
Standards: A1.4.1: Graph a Linear Equation
A1.4.2: Find the slope, x-intercept and y-intercept of a line given its graph, its equation, or two points on the line
Frequency of Music Notes
Target Audience: A high school precalculus class
Goal/Idea: Students will understand graphing sine and cosine curves, in relation to the frequency of the music notes from tuning forks. This includes the changing of the period of the graphs.
Resources: Graphing Calculator, Calculator-based Labs (CBL), and tuning forks
Standards: PC.4.5: Define and graph trigonometric coverage
PC.4.6: Find domain, range, intercepts, periods, amplitudes, and asymptotes of trig functions.
PC.4.7: Draw and analyze graphs of translations of trigonometric functions, including period, amplitude, and phase shift.
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