This project is intended for elementary aged students to expose them to and educate them on engineering design, 3D software programs, and 3D printing.
Students are given a PROBLEM: Your 3 year old cousin is coming over and you are the babysitter! Bubble blowing would keep his attention for some time. You need to create a bubble wand to help your cousin stay entertained.
Their CHALLENGE is: Design a bubble wand that will entertain your cousin. It will need to have structural integrity, and be able to blow bubbles with the design you have created.
Their CRITERIA and CONSTRAINTS are: The 2D design must be included with labels and measurements. The bubble wand needs to have structural integrity. The bubble wand needs to be designed with 3D printing software and printed on the 3D printer. You will have 3 minutes to present your product.
See this project done with students here: https://www.youtube.com/watch?v=cx87Bviiozk
This project was developed in conjunction with the Maine Center for Research in STEM Education.
Overview and Background
Students will be introduced to the engineering process and 3D printing by completing this Bubble Wand Babysitting project. This project could incorporate geometry math standards and science standards if teachers wish to extend or modify the project.
(In student words)
I can design a 3D model that meets multiple constraints.
This means I can:
Design a blueprint of a 3D model.
Evaluate the model based on given criteria and constraints.
Revise the model according to feedback and observation.
This activity is geared toward elementary aged students, more specifically, students in grades 3-5, but the project can be easily adapted for younger and older students if this is their first experience with creating a 3D design to print.
This project incorporates science, technology, engineering and math skills.
Standards Addressed in this project:
3-5-ETS1-1 Define a simple design problem reflecting a need or a want that includes specified criteria for success and constraints on materials, time, or cost
3-5-ETS1-2 Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints of the problem
3-5-ETS1-3 Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved
This entire project should take between 5 to 6 hours. In the lesson plan, each section gives you a guide to the amount of time each section should take.
Students do not need any prior knowledge since this activity is their first introduction to the engineering process, 3D software and 3D printing
The teacher should be well versed in the use of TinkerCAD, 3D printing and the engineering process before beginning this activity.
Rubric and Assessment
At some point after the students are well into the project, they will be given an exit ticket as a formative assessment. Other formative assessments will include progress in the student journal, progress in TinkerCAD and teacher observations.
The summative assessment is the student presentation where they are scored using a rubric which is attached.
This is the formative assessment.
Following is the slideshow students will be shown.