In Part one of this lesson can be found here:
This, part two, lesson is designed to have student demonstrate the concepts of the parts of an inch. The student is only tasked with representing the concept not that their ruler is true to scale. In fact reviewing the concept of scale is a great idea and this lesson lends itself to that very well.
I would print this model on the top or the bottom except the inch so you don't use so much filament for support. Future print setting will depend on the shapes that students use to represent the parts of an inch.
The download files will be there for the entire model and for each of the parts broken down for easier printing.
Student will make a model representing the parts of an inch and they're relationship to each other.
After completing part one of this lesson where students become familiar with the parts of an inch and how they fit into each other we'll have them make their own model to demonstrate what they have learned.
Previously Tinkercad.com experience is important. Students should have at least completed all the tutorial lessons found here:
Students will be able to demonstrate their knowledge of the parts of an inch by making a representative model.
Generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch. Show the data by making a line plot, where the horizontal scale is marked off in appropriate units— whole numbers, halves, or quarters.
Having students design their own model can be very challenging. While giving them the freedom to be creative there are certain restrictions that are important. The model should represent the parts of an inch using the same shape just in different sizes. The relationship should match the characteristics of measurement. For example, the 1/4 inch piece should be half the size the 1/2 inch piece. With this in mind making a model using a diamond will be much harder than using a rectangle, cylinder, or hexagonal prism. All the pieces in the model that make up an inch in any combination should fit inside the inch piece. For example the two 1/2 inch pieces should fit just as well as one 1/2 inch piece and two 1/4 inch pieces. Once they understand this than everything is easy.
- Buy lots of filament
- Have handouts or models from part one of this available for reference
- Make sure student reviews the basic tinkercad tutorials