Template BASIS Tucson Primary Share: Charter SchoolsEducation Visit Website Request Info 3825 E 2nd Street Tucson, AZ 85716 (520) 326-6367 About Map About BASIS Tucson Primary is a tuition free public charter school serving grades K through 4. Formerly BASIS Tucson, BASIS Tucson Primary is the original BASIS school founded in 1998. What's Nearby? Distance: 5 10 15 20 25 50 mi.