Function Carnival by Desmos. Students watch a video and try to graph it. Their graph controls the video. Does it match? You see all their graphs in real time. GeoGebra. GeoGebra Tutorial - Symmetries. There are three symmetries in the plane: reflection symmetry, rotation symmetry, and translation symmetry. If two geometrical objects are such that one of the objects can be transformed to the other, by one of the three symmetries, then the objects have the same shape and the same size; such objects are called congruent objects. A comparison between reflection and rotation symmetry is shown on the page Geometry - Tessellations and Symmetries. Reflection symmetry Exercise 1 - Draw a mirror image Make sure that the axes are not shown. Enter a line between the points A and B. Exercise 2- Reflect in two lines Make another line perpendicular to the original line. Exercise 3 - Reflect a polygon in a line Enter a line and a polygon.
Translation Symmetry An example of several translated copies is shown on the page Linear Algebra - Translation along a Vector. An example of a tessellation is shown on the page Geometry - Tessellations and Symmetries. Exercise 4 - Translate a polygon Rotation Symmetry. TransformationsGeoGebra. Main Page - GeoGebraWiki. Coaster Crafter. Activities. Gooru. Math. About | SMILE. Are you looking for new ways to teach kids about math and science? Do you want activities that meet you where you live, whether your “classroom” is an active volcano, the shark tank at the local aquarium, or your own kitchen table? You’ve come to the right place. Howtosmile.org is collecting the best educational materials on the web and creating learning activities, tools, and services – all designed especially for those who teach school-aged kids in non-classroom settings.
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