Welcome to the Science Department!
Get to Know us!
Andrea Covington - ITL
Courses Taught: HSA Mastery, Biology Honors, Forensics
CHS Extracurriculars: Science Team Leader
Biography:
- B.S. in Science Education from Boston University, M.A. in Applied and Professional Ethics from UMBC and M.S. in Biotechnology
- Taught science in Rhode Island and PG County for 7 years before coming to Howard County in 2003
- Member of the Maryland Common Core Educator Effectiveness Committee for Centennial High School
Sue Carlson - paraeducator AKA Lab Genius
Responsibilities: Supervises student science assistants, Laboratory manager
CHS Extracurriculars: Assists at many Eagle sports events (& loves it!)
Biography:
- Born and raised in Catonsville, MD
- BA in Biology at McDaniel College
- worked in basic science depts- JHU Dept of Biomedical Engineering, Brown Univ. School of Medicine Dept of Surgery
- Married, parent of 2 CHS grads, classes of 2004 & 2007
- Worked at CHS for 15 years
Robert Astri
Courses Taught: Chemistry and AP Chemistry
Biography:- Began working retail in the music industry, then graduated Towson University, next was a Naval officer, then a commercial loan underwriter for a bank
- began teaching in Fairfax, VA and two years later came to CHS in 1992
- married, with 2 sons ages 25 and 23
Stanley Eisenstein
Courses Taught: Physics G/T, Physics AP Mechanics, Physics AP Electricity and Magnetism
Biography:
- teaching physics for 28 years at CHS
- graduate of University of Pennsylvania with degrees in Chemical Engineering and Chemistry and has a masters in Social Work from the University of Maryland
- has published articles in the Science Teacher and Physics Teacher magazines and is currently writing an electronic textbook for the G/T and AP level physics courses
- has walked across England, coast to coast; run a marathon; studied acupuncture in Sri Lanka; composed and performed two albums of instrumental music and competed on Jeopardy
Tara Fadrowski
Courses Taught: G/T Biology and Anatomy and Physiology
CHS Extracurriculars: Varsity Field Hockey coach, Anime Club sponsor, Graduation Co-Chair
Biography:
- taught and coached FH at CHS for 6 years
- Graduate of Salisbury University with a B.S. in Biology with a concentration in Secondary Education. Currently working towards a masters in Curriculum and Instruction at McDaniel College
- River Hill High School Alumni
Lori Griffiths
Courses Taught: Earth Science Review, Earth Science, G/T Earth Science
Biography:
- B.S. from Purdue University in Earth and Space Science- 2005
- M.S. from Johns Hopkins University in Earth and Space Science- 2010
- 7th year teaching, 5th year at Centennial
- Grew up in Indiana
- Married and has the cutest baby boy ever :)
Chad Holllwedel
Courses Taught: Physics, G/T Physics, Intro to Chemistry/Physics
CHS Extracurriculars: Varsity Boys Basketball Head Coach
Biography:
- Grew up on Long Island
- Graduated with a B.S. in Secondary Science Education with a Physics Cert. in 1994 from Widener University
- Taught middle school for three years, joined CHS staff in 1997
- Married, two children, who are both future Eagles!
Shalonda Holt
Courses Taught: Biology
Biography:
- grew up in Prince Frederick, MD
- graduated from UMBC
- teaching at Centennial since 2007
Yuanjun Liu
Courses Taught: Chemistry, G/T Chemistry
CHS Extracurriculars: Chemathon Coach, Badmiton club sponsor
Biography:
- Born and raised in China, been in the U.S. since 1991
- Master Degree in Chemistry from Iowa State University
- teaching in MD since 2005, been at CHS since 2008
Kevin McCoy
Courses Taught: G/T Biology, Honors Biology
CHS Extracurriculars: Centennial Cross Country, Track & Field
Biography:
- Born and raised in Howard County, graduated from River Hill
- B.S. in Biology and Secondary Ed from Delaware Valley College
- second year teaching at the best school in Howard County
Noel Pauller
Courses Taught: G/T Chemistry and Introduction to Chemistry and Physics
CHS Extracurriculars: Track and Field Assistant Coach
Biography:
- B.S. in Biology from Gustavus Adolphus College
- M.Ed. in Life Science and Chemistry Education from the University of Minnesota
- Taught for 7 years in MN and 1 in NC before coming to CHS
- Married with 2 cats and a dog
Jason Piluk
Courses Taught: Honors Biology, G/T Biology, AP Biology
CHS Extracurriculars: STEM Club, Science Olympiad Team
Biography:
- Born and raised in MD
- B.S. in Biology from Towson University with minors in Ecology and Chemistry
- his botanical interests led him to the University of Georgia where he earned a M.S. in Agronomy and conducted research on Phytochemical Ecology
- been teaching in MD for 8 years, 5 at CHS
Karen Reynolds
Courses Taught: Earth and Space Science, Environmental Science, AP Environmental Science
Biography:
- Grew up in Martinsville, VA
- Attended the University of Virginia, graduated in 1999 with a B.A. in Environmental Sciences
- taught 6 years of middle school in Baltimore Co. before coming to CHS in 2007
- married to my high school sweetheart, have two boys
Todd Rosenfeld
Courses Taught: Earth Science, G/T Earth and Space Science, Astronomy
CHS Extracurriculars: Sponsor of the Astronomy Club, Environmental Club, and Rocket Club (new this year)
Biography:
- Grew up in Pittsburgh, PA
- B.S. and Post Baccalaureate course work and research (dept. of Planetary Sciences) at the University of Pittsburgh
- Masters in Science Education from Duquesne University
- Doctorate in Astrophysics from James Cook University
- Taught Astronomy part time at a community college outside Pittsburgh
- Married with 1 child
