challengerschool.comPrivate Preschool - 8th Grade in San Jose, CA | Challenger School The Value of Challenger School Kindergarten March 07 2025 | Articles Read More March 2025 Challenger School Newsletter February 27 2025 | Featured Read More AMC 8 and AMC 10 Mathematics Exam Superior Performance 2021 July 13 2022 | Student Achievement Read More Challenger Preschool Teaches Skills for Life February 25 2020 | Articles Read More Challenger Students Stand Out January 22 2020 | Articles Read More Celebrating the End of a Decade (2010–2019) November 18 2019 | Articles Read More Challenger Students' Amazing 2019 IOWA Test Scores May 22 2019 | Articles Read More How to Choose a Preschool April 18 2019 | Articles Read More Management by Freedom March 01 2019 | Articles Read More