Khan Academy
Khan Academy: Constant of Proportionality From Graphs
Practice finding constant of proportionality from graphs.
Khan Academy
Khan Academy: Identify Proportional Relationships From Graphs
Practice identifying proportional relationships from graphs.
PBS
Pbs: Real Life Math: Physical Trainer
The general manager of a fitness center explains how numerical calculations, percentages, and ratios are critical to his job in this video from KAET. In the accompanying classroom activity, students explore percentages, fractions, and...
Student Achievement Partners
Illustrative Mathematics: Art Class [Pdf]
Students demonstrate understanding of proportional relationships when completing an assessment.
Other
Ask Numbers: Measurement Conversion Calculators and Charts
What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of...