Reflection: Student Self-Assessment Simple Machine Design Evaluation - Section 2: Explore

 

The students were asked to evaluate their own machines by answering the questions in the notes sheet. Looking at two separate machines, lever and wheel and axle, we can see how the students were proud of their machines and their success, but they were still able to suggest some edits and revisions.  

The lever evaluation was successful in accomplishing the task, but they were experiencing some difficulties with the clay being too heavy for only one straw to maneuver it.  Their solution was to add a second straw to the handle. This proved successful in later attempts.  The wheel and axle evaluation had an issue with one of the wheels and their solution was to add more tape.  The tape didn't fix the problem, but it led them to their final solution which was to reshape the faulty wheel into a more perfect ball. 

  Student Self-Assessment: Student Self-Evaluations
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Simple Machine Design Evaluation

Unit 6: Simple Machines
Lesson 5 of 10

Objective: SWBAT self and peer evaluate their simple machine design and identify possible improvements to their design.

Big Idea: The engineering process involves evaluation and reflection on the practicalities of the design. Students will evaluate their own design and that of their peers.

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2 teachers like this lesson
Subject(s):
Science, Simple Machines, SPED, machines, physics
  35 minutes
screen shot 2015 03 10 at 7 25 41 pm
 
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