**
Instructor Insights pages are part of the OCW Educator initiative, which seeks to enhance the value of OCW for educators.
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## Course Overview

The Problem Solving Help Videos provided in this supplemental resource offer step-by-step solutions to sample problems typically encountered in *8.03 Physics III: Vibrations and Waves, *an undergraduate-level course in which students learn about harmonic motion, superposition, forced vibrations and resonance, coupled oscillations, normal modes, and other topics.

The Instructor Insights on this page are shared by Professor Wit Busza, who has taught *Physics III* and its associated recitation sessions many times. At MIT, recitations are opportunities for students to work through problems related to lecture content. Professor Busza’s insights focus on his approach to problem solving, strategies for supporting students as they solve problems, and common sources of confusion for students in the process of problem solving.

## Course Outcomes

### Course Goals for Students

- Understand that almost all natural phenomena involve waves and vibrations
- Learn equations that, although identical, can be used to describe very different phenomena
- Be able to distinguish how the physics differs in each of these cases
- Apply understanding of laws of nature in problem solving

### Possibilities for Further Study/Careers

*8.03 Physics III* is the third course in a sequence of four physics courses. It prepares students to take *8.04 Quantum Physics I*.

Why do we solve problems? We don’t often explain to students why we solve problems. But shouldn’t we? After all, when you really stop to think about it, the answer to this question is not at all trivial.

—Wit Busza

*In the following pages, Professor Wit Busza describes his problem solving pedagogy.*

- Explaining Why We Solve Problems
- Articulating the Two Parts of Physics Problems
- Coming Full Circle in Problem Solving
- Helping Students Solve Problems
- Common Sources of Confusion

## Curriculum Information

### Prerequisites

### Requirements Satisfied

GIR

### Offered

Every fall and spring semester

## How Student Time Was Spent

During an average week, students are expected to spend 12 hours on the course, roughly divided as follows:

## Lecture

Typically meets 2 times per week for 1.5 hours per session; usually about 27 sessions total.

## Recitation

Typically involves the application of lecture concepts to problem solving.

## Preparation

Typically involves reading and homework assignments.

## Student Information

### Breakdown by Year

Mostly sophomores

### Breakdown by Major

Typically physics majors