Finding dr-vector

Highlights of the activity

1. This small group activity is designed to introduce $d\rr$, the key to vector calculus, as a geometric object.
2. Students work in small groups to construct $d\rr$ in rectangular and polar coordinates.
3. The whole class wrap-up discussion emphasizes the geometric importance of $d\rr$.

Reasons to spend class time on the activity

• Constructs $d\rr$ in rectangular and polar coordinates.
• Emphasizes geometric nature of $d\rr$.
• Illustrates infinitesimal reasoning and the use of differentials.

Reflections

• Reflections from the original implementation.

• Reflections from "official" adapters/adopters.

• Reflections from the general public.

Instructor's Guide

• Wiki version

vcdrguide.pdf

Student Handouts

vcdrhand.pdf