| Year | Position | Institution |
| 1982 | University Of Minnesota 4 | |
| 1983 | University Of Minnesota 4 | |
| 1987 | University Of Minnesota 4 | |
| 1988 | University Of Minnesota 4 |
| Year | Role | Course |
| 1982 | Faculty/Staff/Lecturer | Physiology 1982 |
| 1983 | Faculty/Staff/Lecturer | Physiology 1983 |
| 1987 | Lecturer | Cell And Molecular Biology Of Plants 1987 |
| 1988 | Cell And Molecular Biology Of Plants 1988 |