Procedure Order
What is the first step in the procedure for designing technology?
Identify the problem to be solved.
You have 35 minutes to make dinner and your budget is $10. Which of these recipes meets your constraints?
Chicken and Spinach with Penne Pasta. Cost: $15. Prep time: 30 minutes. Ingredients: boneless chicken, spinach, penne pasta, butter, olive oil
Tomato Soup with Grilled Cheese. Cost: $10. Prep time: 25 minutes. Ingredients: canned tomato and basil soup, sliced sandwich bread, sliced cheese, butter
Tomato Soup with Grilled Cheese
The process of designing new or improved technology.
What is engineering?
Emory has a treehouse. She wants to build a tool to pull her toys up to the treehouse from the ground. Which two objects could she use to make her tool?
basket, saw, hammer and nails, rope, wooden boards
basket
rope
What is the next step once an engineer has designed a prototype to solve the problem?
Build and test a prototype.
You are planning a meal for friends and have a budget of $20. They will arrive in one hour and they are vegetarians. Which constraint does not allow this recipe to work for this situation?
Cheeseburgers with French Fries. Cost: $11. Prep time: 40 minutes. Ingredients: American sliced cheese, buns, ground beef, french fries
ground beef
Desirable features of the solution.
What are criteria?
Joe is designing a skateboard anyone could use. He tested his prototype skateboard with three different weights: 60, 90, and 110 pounds. With 110 pounds on it, the center sagged to the ground. What should Joe's next two steps be?
A. sell his new skateboard design
B. build the board with stronger materials
C. test it with smaller friends
D. test again
E. add bigger wheels
B. build the board with stronger materials
D. test again
After an engineer evaluates the results of their test, what should they do next?
Modify the prototype or construct a final design.
Adam wants to fix his bike. He likes to ride it in the evenings, he has $20 to spend, and he needs it to be ready for a race next week. What are the constraints on him finding a solution?
budget $20
time limit one week
A limit on possible solutions.
What is a constraint?
Jamal and Gina are testing different kinds of popcorn salt to see which one people prefer. Which step should they take to make sure their tests are fair?
A. Cook each test batch in a different microwave.
B. Use different kinds of popcorn for each test batch.
C. Have one person try each batch.
D. Put the same amount of salt on each test batch.
D. Put the same amount of salt on each test batch.
What must an engineer do with their modified prototype before presenting it as their final design?
Retest the modified prototype.
Omar is building a small, wooden planter. He needs something to hold the wood together. It must cost less than $10 and should not rust. Will this iron nail be a good option? Why or why not?
Iron Nail. Cost: 4 dollars per box. Description: iron metal that rusts.
The iron nail is not a good option because it can rust.
A test that doesn't give any advantage to the conditions or objects being tested.
What is a fair test?
Dave is ready to test two bird feeders. Put the following steps in the order that he should do them.
A. Use the same type of seeds in each bird feeder
B. Watch the bird feeders at the same time each day for 10 days
C. Count the number of birds at each bird feeder
D. Place the bird feeders in the same location in the yard
D
A
B
C
Which steps of the engineering process are likely to be done more than once? (there are three)
Evaluate test results.
Improve the prototype.
Retest improved prototype.
Marjorie wants a printer that prints in color, prints more than six pages per minutes, and costs less than $0.13 per copy. Will this brand meet her constraints? Why or why not?
Brand X. Color: yes. Cost per print: $0.12. Copies per minute: 8.
Yes, each constraint is met with Brand X.
The process engineers go through to determine what went wrong and why with an unsuccessful design.
What is failure analysis?
Which three improved technologies could help improve farms?
A. Rent old tractors to plow fields.
B. Use computers to control farm equipment.
C. Use GPS for field mapping.
D. Invest in modern milking machines.
E. Hire more workers to harvest the crops.
B. use computers to control farm equipment
C. use GPS for field mapping
D. invest in modern milking machines