Indigo is a unique, parent-participation, elementary and middle school (K-8) option within the Oak Grove School District. http://t.co/uV28pv5CCH A (K-8) parent supported, progressive education program of the Oak Grove School District in San Jose. Indigo is a safe and caring K-8 program designed to educate the whole child. We provide multi-age interactions and constructivist learning activities through a positive discipline approach. This approach is supported by strong parent involvement. Indigo values the unique learning styles, skills and abilities of each child so they will be prepared to make a positive impact on the world.