### Overview

Students will upload a video of their final product from the Extend phase.

### Objectives and Goals

- Examine and explain evidence of Newton’s third law.
- Identify real-world problems with solutions that require an understanding of the transfer of energy.
- Carry out an investigation showing that the more time in which a collision occurs will decrease the force acting on an object.
- Design constraints that minimize (reduce) the force on an object during a collision.

### Procedure

Go to slide 14. Invite students to create a presentation of their own. This may take the form of a Prezi (Links to an external site.), PowerPoint, or a video or audio recording using the Safety First Engineering Instructions (Links to an external site.) packet. The presentations should be uploaded and submitted via Canvas.

Each student’s presentation should include the following:

- Introduction
- Objectives
- List of materials used throughout the experiment
- Procedure used to design and construct the model (including pictures)
- Explanation of all three trials, especially relating to what the student learned about reducing the momentum of the object in a collision
- A completed version of the data table below (also provided on page 3 of the Safety First Engineering Instructions packet)
- A summary of the data table; this summary should incorporate learned terminology and should explain the role of speed, momentum, acceleration, and force.

Give students a specific date by which they should submit their presentations. Have students upload and submit to Canvas directly. You may also have students review the Safety First Engineering Presentation Rubric before they begin.

If students decide to create a PowerPoint or other slide-based presentation, they should have separate slides for the following:

- A slide that explains their introduction.
- A different slide for each trial.
- A conclusion slide that follows the Safety First Engineering Instructions (Links to an external site.) and rubric (Links to an external site.) specifications.

If following an asynchronous teaching format, you can instead have students pre-record their presentations. This can also be used to alleviate students’ anxiety about presenting. For this type of presentation, consider giving students a time limit between 5-10 minutes for their presentations.

Allow students time to work on their presentations.

Once projects are finished and submitted, go over proper presentation etiquette with students before they present. This includes discussing attire, eye contact, posture, and projection. Finally, have students present their projects to the class.

If following an asynchronous teaching format, you can instead have students pre-record their presentations. This can also be used to alleviate students’ anxiety about presenting. For this type of presentation, consider giving students a time limit between 5-10 minutes for their presentations.