Mathematics Department Mission Statement

The Mathematics Department at Brophy College Preparatory is committed to the belief that all creation is a reflection of God’s love and presence which demands a passionate and generous response from the entire community. By creating an atmosphere for academic, emotional, and spiritual growth, the Math Department develops critically thinking, articulate, sensitive, and aware students with a strong sense of self worth and a desire to do justice in their community.

The mathematics curriculum of Brophy is designed to support the growth of an Ignatian student. After four years, each student should exhibit the expected learning outcomes for a student attending a Jesuit high school. These include being open to growth, intellectually competent, religious, loving, and committed to doing justice. Each of these outcomes is addressed within the mathematics curriculum at Brophy, with a particular emphasis on openness to growth and intellectual competence.

Ian Aston, Department Chair

Algebra I, Honors Algebra II, Advanced Placement Calculus
Mr. Aston teaches math and is the department chair. He has taught every math course in the curriculum and all grades from 9th-12th over his twelve-year career. When he is not on campus he can be found at home with his wife and five children. When he is not in the state he can be found in northwest Montana exploring Glacier National Park.
 
Classroom: Piper 222  ||  Tel: (602) 264-5291, ext. 6284  ||  iaston@brophyprep.org

Philip Birgenheir

Algebra II, Honors Algebra II
Mr. Birgenheir graduated from The Catholic University of America in 2010 with a degree in Biochemistry. He moved to Phoenix in 2010 to work with Teach For America. During his two-year TFA commitment, he completed a Master of Secondary Education at ASU. From 2012-2014, he carried out a Fulbright teaching grant in Vienna, Austria where he taught English as a Second Language. At Brophy, in addition to teaching mathematics, he helps coach the Speech and Debate Team.
 
Classroom: Piper 119  ||  Tel: (602) 264-5291, ext. 6284  ||  pbirgenheir@brophyprep.org

Monica Castañeda

Honors Algebra I, Honors Algebra/Geometry
Ms. Castañeda joined the Brophy faculty in 2005. She has a Bachelor of Education from the University of Lethbridge in Alberta, a Master of Education from ASU, and a Master of Arts from NAU. Ms. Castañeda moderates the Math Club, co-moderates Key Club, and assists with the Ad Majorem Community Program.
 
Classroom: Piper 120  ||  Tel: (602) 264-5291, ext. 6284  ||  mcastaneda@brophyprep.org

Doug Cox

Computer Coding, Honors Algebra II, Honors Calculus
Mr. Cox earned a Bachelor of Science in Computer Information Systems from ASU in 2000 and a Master of Secondary Education from NAU in 2003. Mr. Cox joined the Brophy faculty in 2004 and has taught various courses in the mathematics department. He also teaches Brophy’s Introduction to Coding elective course. Additionally, Mr. Cox is the head freshman basketball coach and an assistant track coach.
 
Classroom: Piper 220  ||  Tel: (602) 264-5291, ext. 6284  ||  dcox@brophyprep.org

Mark Granger '86


Mr. Granger earned a Bachelor of Arts in psychology at the University of Notre Dame and a master's degree in educational leadership from Saint Joseph's University. He previously taught at Brophy before moving to Palm Desert to help start Xavier College Preparatory where, in addition to teaching, he served as the dean of students and campus minister. Mr. Granger also assists with Brophy's basketball program.
 
Classroom: Piper ||  Tel: (602) 264-5291, ext. 6284  || mgranger@brophyprep.org

Patrick Kolb

Geometry, Honors Geometry
Mr. Kolb attended Saint Louis University and Truman State University in Missouri before transferring to ASU where he earned his Bachelor of Science in Biology. Afterwards, he continued at ASU, receiving a Master of Genetics. Mr. Kolb also earned a Master of Education with an emphasis in secondary science education. At Brophy, he has taught Environmental Science, Biology, Honors Biology, and Honors Chemistry. He co-coaches the Science Bowl, History Bowl, and Quiz Bowl teams, as well as co-moderates the Future Physicians Club. Mr. Kolb joined Brophy in June 2008. He has taught science at private, public, and charter schools since 2003. In his free time, Mr. Kolb enjoys hiking, exercising, and reading.
 
Classroom: Piper 221  ||  Tel: (602) 264-5291, ext. 6284  ||  pkolb@brophyprep.org

Juan Pablo Marrufo del Toro, S.J.

Pre-Calculus
Father Juan Pablo will split his full time teaching load between the Math and Science departments as well as contributing to the sacramental and pastoral life of our community. He holds a Bachelor of Arts in Business with a minor in Physics from Instituto Tecnológico y de Estudios Superiores de Occidente, Guadalajara; his Master of Arts in Social Philosophy from Loyola of Chicago; and a Master of Divinity and a Licentiate in Sacred Theology from the Jesuit School of Theology of Santa Clara.    

Classroom:  Eller 121, 220, 212, 217  ||  Tel: (602) 264-5291, ext. 6284  ||  jmarrufo@brophyprep.org

Jessie Mason

Honors Pre-Calculus, Differential Equations, Multivariable Calculus
Ms. Mason graduated from Xavier College Preparatory in 2004 and majored in Math Education with a minor in English literature at ASU, graduating in 2008. She received dual Master's from NAU: one in Math Education and the other in English Literature with an emphasis in creative writing. She joined Brophy in 2011 and teaches Pre-Calculus, Differential Equations, and other topics in advanced mathematics. She also teaches SAT prep, moderates the Creative Writing Club, and moonlights with the Brophy Student Theatre Club.
 
Classroom: Piper 118  ||  Tel: (602) 264-5291, ext. 6284  ||  jmason@brophyprep.org

Patrick O'Neill

Honors Calculus
Mr. O’Neill has been at Brophy since 2006. He taught nine years at Mountain View High School in Mesa and has also taught math courses at Mesa Community College. Mr. O'Neill earned a Master of Education in Secondary Education from NAU in 1997. Courses he has taught include Geometry, Algebra II, Honors Algebra, Trigonometry, Pre-Calculus, and Brief Calculus II. He is also certified to teach Rio Salado College mathematics courses and has taught dual enrollment classes since 2003. Mr. O’Neill is Brophy’s varsity swim coach and also helps out with the Robotics Team.
 
Classroom: Piper 219  ||  Tel: (602) 264-5291, ext. 6284  ||  poneill@brophyprep.org

Chris Stevens ’85

Algebra II, Probability and Statistics, Advanced Placement Statistics
Mr. Stevens attended Santa Clara University and the University of Arizona before returning to teach at Brophy. He has coached football and baseball and served as the head soccer coach from 1991-1997. The 1995 team captured the school’s first outright 5A State Championship and finished the season ranked #10 in the nation. Mr. Stevens is the head freshman football coach, as well as coaching JV baseball and assisting with the wrestling program. In his 16-plus years of coaching he has been a varsity head coach with seven different sports. He has three sons - Connor, Chase, and Carson. Both Connor and Chase currently attend Adams State University in Alamosa, Colo. on football scholarships.
 
Classroom: Piper 122  ||  Tel: (602) 264-5291, ext. 6284  ||  cstevens@brophyprep.org

John Taylor

Algebra I, Geometry
Mr. Taylor earned a Bachelor of Arts in East Asian Studies from Yale University. Originally from South Carolina, he came to Arizona in 2002 as a Teach for America corps member and taught in south Phoenix for seven years. He joined Brophy’s Math Department in 2009. His interests include archaeology, ancient writing systems, Russian literature, and hiking. Mr. Taylor currently helps coordinate the Ad Majorem Community Program and coaches JV volleyball.
 
Classroom: Piper 121  ||  Tel: (602) 264-5291, ext. 6284  ||  jtaylor@brophyprep.org

Breanne Toshner

Honors Pre-Calculus, Advanced Placement Calculus
Ms. Toshner earned a Bachelor of Science in Electrical Engineering with a focus on circuits and semi-conductors from ASU. In her time at ASU, she interned for both Medtronic and ON Semi. After graduating, she worked for a local architectural engineering firm for five years, where she was responsible for the electrical design on such projects as Phoenix Children’s Hospital (Phoenix), Del Sol Medical Center (El Paso), Dell Children’s Medical Center (Austin), Banner Gateway Cancer Center (Gilbert), John C. Lincoln Sonoran Health and Emergency Center (Phoenix), and numerous other healthcare facilities in the southwest region. She joined the Brophy faculty in 2013. Ms. Toshner’s interests include hiking, biking, yoga, healthy cooking, not-so-healthy baking, spoiling her dog, Lucy, and generally attempting to learn new skills (including ukulele, guitar, knitting, and gardening).
 
Classroom: Piper 119  ||  Tel: (602) 264-5291, ext. 6284  ||  btoshner@brophyprep.org