# Bundle 2: Collisions

### Welcome to Bundle 2- Collisions

#### Overview:

This investigation contains three components. Tier 1 is designed to engage the learner in exploration of concussions and CTE. Tier 2 includes investigating safety equipment, treatment for concussions, and has students engineering their own product to improve the protection of athletes at risk. The final component, Tier 3, allows the students to build on their prior learning to apply their understanding of and experience with collisions to improve the outcomes of these inevitable collisions.

#### Big ideas:

1. A concussion is a brain injury that affects brain function.
2. Safety equipment can help lessen the impacts of concussions.

 Apply Newton’s Third Law to design a solution to a problem involving the motion of two colliding objects. MS-PS2-2 Plan an investigation to provide evidence that the change in an object’s motion depends on the sum of the forces on the object and the mass of the object. MS-PS3-1 Construct and interpret graphical displays of data to describe the relationships of kinetic energy to the mass of an object and to the speed of an object. MS-ETS1-1 Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions. MS-ETS1-2 Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem. MS-ETS1-3 Analyze data from tests to determine similarities and differences among several design solutions to identify the best characteristics of each that can be combined into a new solution to better meet the criteria for success. MS-ETS1-4 Develop a model to generate data for iterative testing and modification of a proposed object, tool, or process such that an optimal design can be achieved.

#### Tier 1:

Students learn about the story of Zac Easter, a young man from Indianola, Iowa, who committed suicide at 24 years old, after suffering from symptoms of CTE (chronic traumatic encephalopathy) as a result of multiple concussions. Students spend time doing brief research to better understand CTE and will then report to the class. As a class and in small groups, students investigate the likelihood and occurrence of concussions in high school athletics.

#### Tier 2:

Students investigate safety equipment and treatment for concussions and engineer their own product to improve the protection of athletes at risk.

#### Tier 3:

Students build on their prior learning to apply their understanding of and experience with collisions to improve the outcomes of these inevitable collisions

Time: We expect this unit would take a minimum of 3 weeks and as long as 5 weeks. Teachers would guide the initial investigations with the whole group in Tier 1. Next, the students start asking questions and are allowed to explore the possible responses to their questions in Tier 2. The teacher provides students with an application of knowledge using all that was learned in the prior parts in Tier 3.