Part of Unit: Projects-Beginning
Lesson Plan Overview / Details
This lesson will introduce the students to the basic sketching and dimensioning skills necessary to create a mousetrap powered vehicle. Students will use the micrometer and dial caliper to accurately take measurements of the mousetrap and make a sketch of the mousetrap.
- One Class Period
- 55 Minutes
California Career and Technical Education Standards
- BTC.C.C1.2 Calculate the required equipment and materials for mechanical construction appli...
- ED.C.C2.1 Use methods and techniques for employing all engineering design equipment approp...
California Academic Content Standards (Reinforced)
Objectives and Goals
- Students will make a detailed sketch of the mousetrap with annotation/dimensions
- Students will submit their sketches into their portfolio.
Activities in this Lesson
- Fun Facts about the Spring Loaded Mousetrap - Hooks / Set
The Spring Loaded Bar Mousetrap
This mousetrap was created in 1894 by William Hooker in Illinois. Another popular variant of the spring loaded trap was created by Hiram Maxim (inventor of the machine gun). To this day, the workings remain practically the same.
- Internet Research - Group Work
It will be up to the individual instructor as to how they might want to group students. It may be advantageous to have the students work individually at the beginning of the lesson researching mousetrap vehicles on the internet. It is the goal of this lesson to make sure that the students know exactly what a mousetrap vehicle looks like and to understand that there is certainly more than one way to make a mousetrap vehicle.
Ask the students to consider the following questions:
-Are you building your vehicle for speed or for distance?
-What might be the differences in your design if you are going for speed versus distance?
-How many wheels will your vehicle have? Why?
-What factors will create friction, or slow down your vehicle?
-What materials will be useful in your design?
- Hand Drawing a Sketch of the Mousetrap - Demo / Modeling
FOR SAFETY, "DISARM" THE TRAPS BY REMOVING THE LATCH AND HAIR TRIGGER MECHANISM BEFORE PASSING OUT THE TRAPS TO STUDENTS.
Pass out the mousetraps. Tell the students that they will be following along as you draw a sketch of the mousetrap.
For this activity, the teacher needs to be at the board or using an overhead projector to create a sketch of the mousetrap. The drawing does not have to be in scale, but should include all of the pertinant measurements associated with the mousetrap itself. The following measurements will be shown:
-thickness of the wooden base (Dial caliper)
-length of the wooden base (Dial Caliper)
-width of the wooden base (Dial Caliperr)
-thickness of the wire for the trap/spring (dial caliper/micrometer)
-number of coils in the spring
-length of spring
-lengths of the trap arms
-angle of the bends in the trap arm
Put completed dimensioned sketches in to your portfolio.
Turn in portfolios per your instructor's instructions.
- Assessment Types:
- Rubrics, Portfolios, Interviews, Observations,
All sketches will be evaluated by the instructor at the time that they turn in their portfolio. The instructor will evaluate the sketches for accuracy of the measurements. The instructor will evaluate the drawings based on the following rubric.
- Sketch Measuring Rubric [ Download ] Measuring rubric