Curated OER
Ellipses
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...
Curated OER
Earth and Seasons
Sixth graders comprehend that the path Earth takes as it revolves around the sun is called its orbit. They also comprehend that the axis is an imaginary line that passes through Earth's center and its North and South Poles. Students...
Curated OER
Confocal Conics
Young scholars 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...
Curated OER
Observing Mars in the Night Sky
High schoolers compare and contrast the orbits of Earth and Mars, locate the planet Mars, and diagram its retrograde motion.
Curated OER
Graphs and Ellipses
Students explore linear graphs, the parabola and the rectangular hyperbola.
Curated OER
Ellipses And Kepler's First Law
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.
Curated OER
Graphs And Ellipses
Young scholars 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...