Students will be introduced to the ideas of products and design using a pair of scissors as a case study.
A tool is a device that helps people do a task.
Show students scissors
Prior to the lesson, cut the cardboard into two 8” x 1” sheets per student. One end will be a “blade” and the other will be a handle. Create a small hole about 2 thirds of the way up the handle to make a place for the pivot point. Distribute a brass brad, two 8” x 1” sheets to each student or group of students.
Distribute two long straws, two shorts straws, two yellow connectors, and a blue connector to each student or group of students.
Students will be guided through a build of a pair of scissors using pre-cut cardboard and brass brads. See presentation for guidance.
Students will be guided through a build process for a pair of scissors using Strawbees. See presentation for guidance.
Students explain/write how life would be different without scissors.
If applicable, students should extend the design of their scissors to accommodate a different population. Students will modify their existing design using additional Strawbees or paper additions in the case of the cardboard construction. See the slides for further information.
Further extension can take the form of a discussion revolving around the design specifications of a pair of scissors compared to those of pliers. Students should be alerted to the fact that pliers may look similar to scissors, but they have a very different functionality which makes them worse at cutting things but better at picking things up.