Examine the proper uses of punctuation with this easy PowerPoint. Simple, bold, and straightforward, each slide introduces a different symbol. Difficult or confusing instances are indicated as well.

“Use ellipses to show omitted material from a quoted passage . . . and to maintain good grammar . . . .” Everything learners need to know about ellipses and how to uses them is included in colorful presentation that is rich with...

Students compare and contrast ellipses of various eccentricities that represent the shape of planetary orbits. They make a circle with the string by trying the two ends togther. Students calculate the eccentricity of their ellipses by...

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.

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.