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High School Team


griffinSean Griffin -  Director of High School Academic Excellence

Sean is grateful for the experiences and benefits of his own Catholic education through both elementary school and high school within the Archdiocese of Philadelphia. After graduating from high school he continued his journey in Catholic education at the University of Notre Dame where he earned his Bachelor of Science Degree in Aerospace Engineering. Sensing a desire to give back to Catholic education, he continued on to the PLACE program at Loyola Marymount University (LMU) as a Math and Science Teacher. He was PLACEd at Bishop Mora Salesian High School as a math and physics teacher and he helped bring both AP Calculus and AP Physics to the student population. For 2 years he lived in community with other first and second year Catholic educators and then graduated with his Master of Arts Degree in Secondary Mathematics Education along with his Single Subject Mathematics Credential.


Throughout Sean’s educational career he has had a passion for supporting teachers as they grow and develop. He has worked for the Center for Math and Science Teaching (CMAST) at LMU helping build teacher coaching and professional development for math and science teachers. He’s served as a Dean of STEM and as an Assistant Principal of Curriculum and Instruction at St. Bernard High School and St. Mary’s Academy, and was a math Professional Development Leader across the Green Dot Public Schools charter network. He has taught most high school math courses, and most recently was teaching AP Calculus and Algebra 2 in addition to preparing juniors for the math SBAC (the Common Core high school math assessment) and the SAT and ACT.


As the Director of High School Academic Excellence, Sean is excited to partner with academic leaders and teachers to continue to facilitate a growing academic culture of collaboration and professional development that ultimately benefits the student experience and outcomes across the Catholic High Schools in the Archdiocese of Los Angeles.  Using his experience as an administrator, workshop presenter, and training in preparing for and analyzing data from 21st century assessments, he is grateful for the opportunity to be a part on Onward 4 Excellence team to work with schools to continue to grow student success.


Contact: SGriffin@la-archdiocese.org  



dunneDaniel Dunne - Academic Data Specialist

Daniel was born and raised in Chicago, Illinois, but now calls Los Angeles home. After completing a degree in Communications and Mathematics at the University of San Diego, Daniel moved to Los Angeles in 2014 to start his career teaching. While teaching, he earned his MA in secondary education with a focus in mathematics through PLACE Corps at Loyola Marymount University. He has also earned various credentials using programming and coding for data analysis.


Daniel’s career in education started as a math teacher at Cathedral High School. He had the opportunity to teach a variety of different ages and levels of math while utilizing tech tools and adaptive software in the classroom. In 2017 Daniel started a new career at LMU with the iDEAL Institute. There, he helped write and deliver professional development in Blended Learning and Tech-Integration for TK-8 teachers across the state of California. After studying coding and data analysis, Daniel started with the Onward 4 Excellence team as an Academic Data Specialist. 


Daniel has a passion for using technology to redefine education with analysis of big data and classroom use of adaptive software. As the Academic Data Specialist for the Onward 4 Excellence team, Daniel strives to deliver the best information to facilitate growth in the Catholic Schools of Los Angeles. He is grateful for the opportunity to work in a socially just field with fellow educators.


Contact: DRDunne@la-archdiocese.org