Seventh Grade Markups and Markdowns teaches students using the cost or wholesale price to calculate the retail price using a percent markup and likewise how to take the retail price and calculate a sale price using a percent markdown. The progression begins with basic arithmetic to find the percentages, moves into bar models and finally into expressions. There is a title slide, focus slide, objectives, essential question, vocabulary, vocabulary check, concept development, guided practice, checking for understanding, problem solving with a word problem, and a reward slide at the end. For best results, students should have white boards and dry erase markers. This lesson covers Common Core standards 7.EE.3, 7.EE.2, and 7.RP.3.