Classify the different types of numbers we use, and learn how numbers and operations relate to one another. Start with counting numbers and then add integers, rationals, algebraic, and, finally, real numbers to the line.
Run this model of the carbon cycle to see how carbon circulates through the atmosphere, biosphere, oceans and the earth's crust. Explore ways that human input might change global outcomes in the future.
Play an animation that incorporates most types of energy transfers and conversions into a chain reaction. Then rerun the animation and answer questions to test your understanding of how energy can travel and change.
Because the Constitution creates separate institutions that must share power, there will always be disputes over the basic principles. Check out some of the hot issues (term limits, electoral college, judicial review) that are in dispute even to this day.
Statistical analysis allows us to organize data in different ways to draw out potential patterns in the variation. Review and compare data represented in a bar graph and accompanying tables depicting relative and cumulative frequency.