Engineering Design Process — Answer Key
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
Engineers identifys the problem before making a plan.
Corrected: Engineers identify the problem before making a plan.
Grade 3 grammar: 'engineers identify', not 'identifys'.
2. Fix the sentence:
The Ask step help engineers understand whom the design is for.
Corrected: The Ask step helps engineers understand who the design is for.
Grade 3 grammar: subject-verb agreement and correct pronoun use.
3. Fix the sentence:
Good questions finds out what users really need.
Corrected: Good questions find out what users really need.
Grade 3 agreement: plural subjects use plural verb forms.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. An engineering problem is something people need or want fixed.
Grade 3 NGSS 3-5-ETS1: engineers begin work by finding a problem.
2. In the Ask step, engineers ask questions about the problem.
Grade 3 design process: asking questions defines the problem clearly.
3. The person who will use the design is called the user.
Grade 3 NGSS 3-5-ETS1: engineers design with the user's needs in mind.
4. A good problem statement tells what is needed and who it is for.
Grade 3 science: problem statements name both the need and the user.
Part C: True or False?
Read each statement. Circle True or False.
1. Grade 3 engineers ask questions to understand a problem.
True False
Grade 3 NGSS 3-5-ETS1: asking helps define the problem to solve.
2. A problem statement should skip saying who the design is for.
True False
Grade 3 science: good problem statements include the user or need.
3. 'How can we keep a lunchbox cold?' is a good engineering question.
True False
Grade 3 NGSS 3-5-ETS1: such questions lead to real design projects.