Meet The Instructors

Sierra Ledesma is a passionate dance educator with a strong foundation in kinesiology and sports medicine, earning both her bachelor’s and master’s degrees from California Baptist University. Her deep understanding of human movement enhances her approach to teaching, blending science with artistry.

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With over a decade of experience, Sierra has taught various dance styles to students of all ages. Her love for teaching stems from the meaningful connections she builds with her students, inspiring their growth both technically and personally. To further her impact in education, she obtained a single subject teaching credential from Brandman University.

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Since 2021, Sierra has been shaping young dancers at Sonora High School while also continuing to coach a competitive dance at a local high school. Her dual roles allow her to stay actively engaged in the dance community, mentoring the next generation of performers. 

 

Beyond technique and choreography, Sierra prioritizes fostering confidence, creativity, and discipline in her students. Her dedication to dance education goes beyond the classroom, as she continues to inspire, mentor, and cultivate a love for dance in those she teaches.

Mr. Diebolt graduated from Rancho Bernardo High School in San Diego before attending Cal State Fullerton. He graduated from CSUF Cum Laude with a Bachelors of Arts in Music Education in 2001. He received his teaching credential the next year while student teaching at El Dorado High School and Tuffree Middle School in the Placentia-Yorba Linda School District.

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Mr. Diebolt took the job as Sonora's Instrumental Music Director in 2002. In 2015, Mr. Diebolt took over the responsibilities of the Choral Music Program as well.

His ensembles have garnered many first place awards (San Dimas Western Days Parade, Chino Band Review and Field Tournament, Kennedy Field Show, Fullerton Festival of Bands, and the La Palma Days Parade) and Superior ratings. Members of his groups have performed in London, Paris, Austria, Germany, Switzerland, the Tournament of Roses Parade and All- Southern and All-State Honor Bands. He was selected as Sonora's Teacher of the Year in 2007. 

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Graduates of his program have gone on to play at many fine institutions including University of Southern California, Biola, Irvine, Fullerton College, Mt. San Antonio College, Wheaton, and Roosevelt University.

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Mr. Diebolt has served as an Honor Band Manager, Honor Band Auditioner, and Judge with the Southern California School Band and Orchestra Association.

 

Mr. Diebolt lives in Brea with his wife Rebecca, his daughters Taylor and Aubrey, his son Nathan, and his dog Zeppelin.

Jeffrey Brem is thrilled to be teaching theatre at Sonora High School.  He holds a Master of Arts degree in Theater from Cal State Los Angeles and is a graduate of South Coast Repertory’s Acting Intensive Program.  He has acted in a number of plays and musicals in both lead and supporting roles.  He started at Sonora as an English teacher in 2002, and took on the theater program in 2015.  Since then he has directed almost 30 productions at Sonora High School including plays, musicals, and acting showcases.

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Mr. Brem believes theater is a very personal yet collaborative art form that welcomes anyone willing to put in the energy and time to tell their story.  Theater increases students’ self-confidence, teaches academic and artistic literacy, and it encourages them to value both their own and others’ point of view.      
 

Mr. Fernando L. Perez Jr. was born in Los Angeles, CA in 1969. His earliest creative recollection began while attending Art and Craft programs hosted by his local community.

He earned his Bachelor’s of Fine Art degree at the University of California, Los Angeles, and obtained his teaching credential at California State University, Fullerton.

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Mr. Perez has been a Visual Art Instructor at Sonora High School located in La Habra, CA since 1997. He lives with his wife and daughter in the City of La Mirada, CA  and remains active with his own personal artwork.

Mrs. Coleman is originally from Virginia Beach, Virginia and graduated from the Visual and Performing Arts Academy at Salem High School with concentrations in visual art and theatre. She completed the program in 2008 as the first graduating class, then drove across the country to move to sunny California. 

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After earning her Bachelor's degree at California State University, Fullerton in Studio Art in 2014, she relocated to Seoul, South Korea to teach English as a foreign language. While living and working in Seoul, Mrs. Coleman found an abiding love for teaching and working with students to explore their interests and help inspire them.

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Mrs. Coleman earned her teaching credential in Visual Arts at California State University, Fullerton, completing her student teaching at Sunny Hills High School. Mrs. Coleman started at Sonora High School in 2021, and currently instructs students in 3D Design, Drawing & Painting, and IB Art.   

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Outside of class Mrs. Coleman loves to travel and learn about different cultures, and to connect with how vast the art world truly is.