This lesson plan appears to be well designed. The students recieve an explanation and context with a chance to practice, recieve feedback and apply what they ahve learned to a new situation. This plan satisfies the UDL principles by displayin the information visually, with audio, through practice and through a project.
I would suggest a hands on lab. Catapults or just throwing a ball and video taping the trajectory. What state standards does this cover?
For socialization, will they be collaborating online or in class? What is to be invluded in their presentation?
Did not mention how your power point fits in with this lesson.
Overall, this was a solid lesson plan. I would like to see what they do with that program and what their project rubric looks like.
Hyperlink to the Geogebra activity you had in mind.