**Teaching Assistant, MAE 221 Thermodynamics**

Course Description: Presents the definitions, concepts, and laws of thermodynamics. Topics include the first and second laws, thermodynamic property relationships, and applications to vapor and gas power systems, refrigeration, and heat pump systems. Examples and problems are related to contemporary aspects of energy and power generation and to broader environmental issues.

Role: Taught a 35-student section, graded homework, and held office hours. David received the highest rating by students among TA's (4.63/5), and had very high attendance (and defectors from other sections attended his).

**Grader, TAM 203 Dynamics**

Course Description: Newtonian dynamics of a particle, systems of particles, a rigid body. Kinematics, motion relative to a moving frame. Impulse, momentum, angular momentum, energy. Rigid-body kinematics, angular velocity, moment of momentum, the inertia tensor. Euler equations, the gyroscope.

Role: Graded homework, held office hours, and attending course planning meetings.

**Elementary School After-School Science Teacher**

Beverly J. Martin Elementary School

Role: Planned and taught weekly after-school lessons for the “A-plus” program, partnering with the local “Sciencenter.”

**Freelance Tutor**

Role: Taught math, physics, and chemistry for grades 6 through 12, undergraduate, and graduate students.