Notre Dame Academy Educating Young Women to Make a Difference

Skip to main content
STEM @ NDA » Staff



STEM Faculty

Kathy Griffis, Ph.D.
In addition to teaching Intro and AP Biology, Dr. Kathy Griffis was the founder of the Stem Pathways (SP2) program.  She joined the school seven years ago after teaching at The Buckley School for 20 years.  For fun, she builds rockets and robots! She earned grants from NASA and the National Association of Rocketry to start NDA's rocketry program and develop related curricula.  Northrup Grumman also awarded Dr. Griffis a grant to create a VEX robotics program at NDA.  

Glen Janken
Need the formula for slope?  See Mr. Janken.  Want to be more confident with money and finances?  See Mr. Janken.   Formerly a certified financial planner, Glen Janken launched a second career when he joined NDA seven years ago to teach math --from Algebra 2 to Calculus to Statistics. Sister Marie Paul Grech, SND, inspires him with "Help me remember I'm not teaching 'just' a subject.  I'm teaching a way of life, a way of love."

Ron Lebron
Ron Lebron has taught Algebra and Geometry at NDA for more than 18 years, so it will come as no surprise that he believes balance is the key to success in high school and beyond.  Mr. Lebron is a study in contrasts: a veteran of the U.S. Navy, he also enjoys the “Twilight” series. When he's not working hard for and with his students, he's playing hard with his family and rooting for the Bruins.

Oscar Navarro
​As he leads the AP Computer Science Principles course, Oscar Navarro draws on his more than 10 years of teaching and educational technology experience.  In addition to his high school classes, Mr. Navarro teaches in LMU’s Tech Integration Program. The 2017 Crystal Apple Award recipient encourages his students to pursue varied interests in an effort to maximize future opportunities.  And he should know – the tech expert earned his undergraduate degree in English literature from Cal State Dominguez Hills before pursuing a Master’s in educational technology at Long Beach State. 

Merzak Toubal
Honors Algebra 2, Honors Pre-Calculus, and AP Calculus teacher Merzak Toubal is passionate about both learning math and teaching it to others.  He can, in fact, teach math not only in English, but also in French and Arabic. While working on his undergraduate degree in computer science and his Master's in applied mathematics, Mr. Toubal earned awards in both calculus and computer studies.  He brings more than nine years of experience to NDA and believes that education must be coupled with good character.  

Chris Vivo, Ed.D.
Dean of Math and Science Dr. Chris Vivo is more than a skilled math and physics teacher.  He’s also an expert in Medieval and Renaissance Martial Arts.  Dr. Vivo brings nearly 25 years of experience to NDA and encourages his students to believe in themselves.  After earning his undergraduate degree in biomedical/electrical engineering from Brown, he earned a Master’s in biomedical engineering and a doctorate in educational leadership, both from USC.