2018-present
Dental gross anatomy laboratory.
2018-present
Medical gross anatomy laboratory.
2015-present
Medicine and Society II to Medical and Physician Assistant students.
Lectures on Muscular Tissue.
2009-2017
Principles of Scholarly Integrity to graduate students and postdoctoral associates. Lecture and small group teaching.
1995-2014
Development, Structure and Function of Human Organ Systems (HOS) for medical students. Lab for all subjects; Lab orientation lectures on Muscle, Integuments, Respiratory system, Lymphoid system, Eye, GI tract I, GI tract II, and Urinary, Endocrine and Female reproductive systems.

December 2014. Kawai was commended by Dean Debra Schwinn for teaching histology part of HOS for 19 years. He has taught histology to medical and dental students for total of 32 years both at Columbia University and The University of Iowa.
2001-2009
General and Oral Histology for dental students. Classroom teaching and lab orientation. Lectures on Muscle, Respiratory system, Integument, Lymphoid system, Eye, GI tract I, GI tract II, Endocrine, and Female reproductive systems.
1988-1997
Course Director, Graduate Seminar.
1994
Co-Course Director, General Histology for dental students.
1982-1995
General Histology for medical and dental students. Classroom teaching (lectures on Muscle, Integument, endocrine system, ear, and eye), and laboratory teaching.