Hopitutuqaiki, with the support of the Hopi Education Endowment Fund (HEEF), has completed 12 years of Hopi Language Immersion Arts-Based Preschool for 3-5 year-old children.Hopitutuqaiki, with the support of the Hopi Education Endowment Fund (HEEF), has completed 12 years of Hopi Language Immersion Arts-Based Preschool for 3-5 year-old children.