Mathnasium of Eastlake in Chula Vista occupies Suite 1623 at 884 Eastlake Parkway, operating a K–12 math-only learning center franchised from the Los Angeles-based system founded in 2002. The proprietary Mathnasium Method combines mental, verbal, visual, tactile, and written modalities to build number sense, an instructional framework that reinforces the California Common Core math sequence at feeder schools like Eastlake High School. Each enrollment begins with a comprehensive diagnostic assessment that identifies specific skill gaps, generating an individualized learning plan targeting foundational arithmetic through advanced algebra and geometry. The center serves the Otay Ranch, Rolling Hills, San Miguel Ranch, and Bonita Long Canyon attendance zones, preparing high school juniors and seniors for the SAT math section and college-level placement exams at institutions such as Southwestern College. Instructors apply the Mathnasium Method's five-modality sequence — oral number-sense drills, visual fraction models, tactile manipulative exercises, mental computation challenges, and written problem sets — across 60-minute sessions calibrated to each student's diagnostic baseline.