Prior to this lesson, students will be engaged in a unit of study around lines and angles. This lesson introduces two pieces of technology (Google Draw and Tinkercad) to demonstrate learning about lines and angles.
Students will be creating their own keychain design that demonstrates their understanding of lines and angles using Google Draw.
Students will be using Tinkercad to incorporate their Google Draw design into a keychain design.
Approximately 10 minutes
Duration of Lesson: 1 week
Understanding the Lesson video
- Google Draw
Lesson Part 1: Designing on Google Draw
Share the overview and challenge of the project. Start the lesson by introducing students to Google Draw. Students can directly design on Google Draw or draw the design on paper.
Lesson Part 2: Converting Google Draw to .SVG
Google Draw does not always export correctly to .svg so we exported as .jpg and used a converter.
Tinkercad allows the import of either an .svg or .stl file.
An .svg file can be a converted .jpg or .png file. I use the following .svg converter - http://picsvg.com/
An .stl file is any file that has been created for 3D printing. This import ability allows the designer to import any 3D design and rework it or build upon it. In this project, you can use the .stl to build the final pieces.
Lesson Part 3: Creating the Keychain in Tinkercad
Students will need to create a base for their design which includes a hole or the incorporation of a ring attached to the base. Design choices like raised or receding will also be an option. This is a good time to talk about millimeters as Tinkercad and 3D printing are normally designed in the metric system. It is essential to help students to understand what would be the appropriate sizing of a keychain.
Lesson Part 4: Printing
Students will need to export the design for 3D printing from Tinkercad as an .stl file and share it with the teacher for final printing.
Printing will take approximately 30 minutes per design.
Resolution: 0.2 mm
- Google Draw. Modifications: Use- MakerBot PrintShop or Morphi
Skills Learned (Standards)
Draw and identify lines and angles, and classify shapes by properties of their lines and angles.
CCSS.MATH.CONTENT.4.G.A.1 - Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.