The Right Ratio of Rest: Proportional Reasoning

Students use Scion Image to estimate the proportion of space images. In this proportion lesson, students investigate the online site of Image of the Orbitor and relate the dimensions and sizes to known sizes.

A wonderful lesson incorporating math and physics skills along with specific details about the planetary bodies. The cross-curricular approach makes for a valid activity to challenge multiple ages and abilities. Your class could work in...

Who knew running a greenhouse required so much math? Amaze future mathematicians and farmers with the amount of unit conversions, ratio and proportional reasoning, and geometric applications involved by having them complete the...

Studets practice problem solving and comparison of quantities, ratios and prproportions. They develop a plan for determining the height of a flagpole complete with drawings and calculations. In addition, they complete a written...

In a nose-cone to nose-cone competition, which rocket will prevail? Teams form rocket companies to design and build a rocket while competing against other teams in an economic challenge. The team that comes up with the best benefit/cost...

A cookie recipe is displayed as an example of proportional relationships, a clever way to introduce your chemists to stoichiometry! The steps of stoichiometry are listed, molar volume is explained, and then several stoichiometry problems...

Sal goes back to a look at the Adiabatic process in this chemistry video. He sets up a Carnot Cycle that occurs within an adiabatic process; meaning there is no transfer of heat. From that problem, Sal constructs Volume Ratios which is a...

How do chemists know if they've done a good job performing a reaction? They use the percent yield equation! Introduce the calculation that often determines success (or otherwise) in the lab with a short video. The narrator explains...

This is a short correction to the video detailing pumping 3 sodium ions and 2 potassium ions. There is also a letter from a professor giving information about the ratio of 3 to 2 ions and how the concentration gradient is actually the...

Students apply estimation strategies and proportional reasoning to determine a scale comparing the planetary bodies to Earth. They convert measurements of time and distance using scientific notation. Both the metric and customary units...