Welcome to STEM Workshop

1. Day 2, Elementary Educators Welcome to STEM Workshop

2. Reflect & Share • What stood out in your mind from yesterday’s workshop?

3. Goals • Participate in design and redesign activities. • Compare types of engineering: design, redesign and reverse engineering. • Reflect on current classroom activities and how they can be altered to elicit more opportunities for design and redesign. • Familiarization with the Engineering Standards

4. The Wee Adams Family The Wee Adams family always seems to have a problem with the monsters of Monster Lake when they are trying to take gold from one side to the other. The monsters always steal some of their gold. The Wee Adams family is fed up and needs your help. Can you help the Wee Adams family get from one side of the lake to the other without having to walk in the water and risk losing their gold?

5. The Wee Brown Family The Wee Brown family just received word that a sick cousin must have an operation right away. He keeps getting bigger and bigger. The doctors say that he needs 12 bars of gold to cover the cost of the operation. The Wee Brown family will have to send the gold from their safe, but it will take hours or maybe days for them to unload 12 bars from their safe. They may also have to take breaks to regain strength while unloading. Can you help them find an easier and faster way to put their gold into the car and drive to the hospital before their poor cousin explodes.

6. The Wee Family & MN Standards

7. Engineering Activities • Design • Redesign • Reverse Engineering

8. Design …a type of engineering in which something is created to solve a problem or meet the needs of an individual or group. For example, the Wee Family activities were an example of design—we created simple machines from scratch to solve a problem for this group of people.

9. Redesign …an existing product is taken and is altered so that it performs better.

10. Reverse Engineering … an existing product is taken apart to determine how it works.

11. Brainstorm

12. What would your students say? • How do humans use the wind?

13. Wind Energy • Wind energy is the use of the wind as an energy source. A wind energy system transforms the kinetic (moving) energy of the wind into mechanical or electrical energy that can be harnessed for practical use.

14. Mechanical Energy • Wind energy can be harnessed by sails for transportation (sailboats) and other purposes such as grinding grain and pumping water.

15. Electrical Energy • Harnessing the wind for electricity generation is the most widespread use of wind energy today. Wind turbines, activated by the wind, generate electricity for homes, businesses, and for sale to utilities.

16. Wind Turbine: Redesign The Whirly-Wind Company is evaluating their current wind turbine design, they are looking for designs that will generate more energy than their current model. In looking at their design, what might you alter to make the turbine more efficient?

17. Your Task The Whirly-Wind company has asked teams of engineers to use what they know about the current design to create a new turbine. As you work they ask each engineer to do the following: • Keep detailed notes about each design. • Record the energy output for each design. • Be ready by given time to unveil your final product. • You may use any of the materials given to you for your design.

18. Presentation of Turbines • Have a team representative bring the turbine to the front of the room. • When your team is asked send the demonstration team up to hook your turbine to the multimeter. • Good luck!

19. Closure: Personal Journal • Please take time to reflect on how ideas you have to implement elements of engineering and the standards into your classroom and teaching this school year.