Our on-board teachers come from top rank public schools and local community colleges. Through collaboration, communication and with a commitment to quality results, our teachers take an enthusiastic, innovative and entrepreneurial approach to education. 

Mr. Yankowski 

Ms. Carvalheira

Mr. Duran is STC’s double-duty lobby staff and English teacher. With a Master’s Degree in Creative Writing, he leads our high-school level English courses to greater heights. Always with an infectious smile and a positive attitude. 

Mr. Kozel is a UC Davis graduate with a major in Chemistry and is well-known with STC students for his Chemistry-teaching abilities; he is very familiar with all levels of high-school Chemistry as well as the AP/SAT 2 Chemistry Exams. Most years, he has a waiting list of students waiting to meet him. 

Mrs. Rothfuss has taught AP Statistics and AP Calculus in the Fremont school district for over 20 years. She has intimate knowledge and experience regarding most levels of high-school level math and as a former AP Reader, she is well-versed in AP test question formatting. 

Mr. Hui graduated from UC Davis with a major in psychology and has been teaching at STC for over 5 years. He specializes in teaching middle-school math and English of various grades, up to and including SAT Critical Reading, Writing, and Essay, and the comparable ACT English sections. 

Mrs. Samra has been teaching elementary school in San Ramon for years. With her experience and teaching background, Mrs. Samra is well recognized by parents. She primarily teaches 3rd and 4th grade English at STC. 

Mrs. Walker has been teaching at middle schools and high schools in the Livermore area since 2003. She has a BA in Economics from UCSD and an AS in Business Administration from Mesa College, and has a Multiple Subject Teaching Credential and a Single Subject Teaching Credential in Economics and can teach math and business. She has plenty of  experience teaching math from the middle school level to the high school level. 

Mr. Louis has a degree in Electrical Engineering from University of Florida. He is an engineer by trade and has been teaching EE courses at Northwestern Poly University (NPU) in Fremont, CA since 2000. At STC, he specializes in high school math, including Pre-Calculus, AP Calculus AB, and SAT II math. 

Mr. Bedi is a graduate from UC Berkeley with a degree in Molecular and Cell Biology. He has experience teaching students from the San Ramon, Pleasanton, and Dublin school districts, focusing on their school Biology course, the AP Biology exam, as well as the SAT 2 Biology exam. As an expert on almost any school-Biology topic, Mr. Bedi has established a reputation as one of the most effective Biology teachers STC has ever had.