This lesson plan was extremely well written and easy to follow through. Some ways that were used to represent the concepts and to engage students included the use of the Geogebra program and the real-life application aspects. The lesson also provided various means for students to express and apply their understandngs. A thought might be to include some form of collaborative learning for students who learn well when they express themselves verbally. Overall, it is a thorough and well-designed plan.