Screen $5 each Plastic cup with hole in bottom for each group Water prepared by the teacher “Polluted” Building of the Each group must draw a diagram of their water filter and 4 5 Product calculate the cost. Best a (Prototype, model Build a prototype of the water filtration system. Select Step Step or Artifact): Possible the Testing of the Test the water filters and record observations of how clean Product (clear) the water becomes. (Prototype, model Compare filtered water to three samples prepared by the or Artifact): teacher. Peer-Review What was the goal of the design challenge? Solution(s) Questions: What are the limits (constraints) that you need to 6 consider when your water filter? the How can you determine how successful your design is? Step How many of the materials did you use and how much of each one did you use? Evaluate What is the total cost of your design? and What are your strengths and weaknesses in your water filter design? Test Provide a description and explanation of your design and Project Summary: summarize how the model performed during testing. the 7 Presentation of Present your diagram of the water filter and discuss its cost. Final Solution: Report results of design's performance during testing. The Step persuasive presentation should be directed to the owner of the Solution(s) water filtration company. You should try to "sell" the water Communicate filter as the best method to clean the water in the ponds. Re-designing of Based on peer reviews, teacher input, and analysis of proposed solution, the students are to re-design and rebuild a prototype the Prototype 8 of their design. Step Redesign
Screen $5 each Plastic cup with hole in bottom for each group “Polluted” Water prepared by the teacher Step 4 Select the Best Possible Step 5 a Building of the Product (Prototype, model or Artifact): Each group must draw a diagram of their water filter and calculate the cost. Build a prototype of the water filtration system. Step 6 Test and Evaluate the Solution(s) Testing of the Product (Prototype, model or Artifact): Test the water filters and record observations of how clean (clear) the water becomes. Compare filtered water to three samples prepared by the teacher. Peer-Review Questions: What was the goal of the design challenge? What are the limits (constraints) that you need to consider when your water filter? How can you determine how successful your design is? How many of the materials did you use and how much of each one did you use? What is the total cost of your design? What are your strengths and weaknesses in your water filter design? Step 7 Communicate the Solution(s) Project Summary: Provide a description and explanation of your design and summarize how the model performed during testing. Presentation of Final Solution: Present your diagram of the water filter and discuss its cost. Report results of design's performance during testing. The persuasive presentation should be directed to the owner of the water filtration company. You should try to "sell" the water filter as the best method to clean the water in the ponds. Step 8 Redesign Re-designing of the Prototype Based on peer reviews, teacher input, and analysis of proposed solution, the students are to re-design and rebuild a prototype of their design.