Proportion Equations

For one-on-one or whole-class mathematics instruction, use this Guzinta Math lesson as a supplement for teaching sales tax, tips, markups, markdowns, and the applying the proportion equation y = kx along with the constant of proportionality--all key concepts in 7th grade. The app includes detailed instructor notes for each guided practice problem, with notes about extending discussion around each worked example and problem. Instructors and/or students can turn on and use the new canvas feature (with improved writing functionality) in the app to write all over the screen--take notes, highlight key terms and ideas, show work, etc.