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- Grade Range
- 9th - 12th
- Rating
Students explain that planets actually orbit the center of gravity of the solar system, and that distant planets may be detected by motions of their central star around the centers of gravity of their planetary systems. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students become acquainted with linear graphs, the parabola and the rectangular hyperbola. Also prepare tables of paired values as preparation for plotting a line. They study the cartesian equation of an ellipse, with a worked example. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students explore linear graphs, the parabola and the rectangular hyperbola. Full Review »
- Grade Range
- 11th
- Rating
Students examine graphs in the form r = F(¿¿) in polar coordinates (r, ¿¿), in particular with the circle, ellipse and other conic sections. They determine the nature of an ellipse by studying the role of the semimajor axis and eccentricity. They realize that the fixed point in a planetary system is its center of gravity. Full Review »
- Grade Range
- 11th - 12th
- Rating
Students describe conic sections from an equation or graph. They examine a family of conics that share a vertex, describe their relationship and write an equation. Students interpret the relationship between conic sections and write equations for ellipses, hyperbolas and a parabola. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students use problem solving skills to rotate, reflect, translate, and dilate a given ellipse and circle. Students graph their circles and ellipses and practice writing and solving equations based on their graphs. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students identify and graph ellipses. After a teacher led discussion on shapes created when intersected by a plane and the use of conic sections, students create a graphic organizer containing the information. A United Streaming video is shown to explore conic sections. Using a string and oak tag, students participate in activities to create an ellipse. They discuss properties and formulas for the created ellipses. Full Review »
- Grade Range
- 3rd - 5th
- Rating
Students explore the concept of ellipses including finding the center, vertices's, foci and eccentricity. They assess how to graph elliptical functions and solve application problems involving ellipses. This assignment is to be completed in the computer lab. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students investigate the concept of ellipses and how they are used in a variety of geometry problems with a focus upon writing an equation given certain criteria. They draw an ellipse while developing the equation examining the x and y axis. Full Review »
- Grade Range
- 11th - 12th
- Rating
Students analyze formulas for ellipses. They solve by completing the square. Students find the center of the ellipses. They listen as the teacher describes the eccentricity of an ellipse. Students work several problems independently. Full Review »
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