Ki te whakahaere mātauranga a Jakange he nui ngā mahi rangahau me ngā tuhinga, ka whakamahi i aua i roto i ngā whenua o te whakamātau ā-whatu, paparanga, rongoā, pukapuka whakaahua me te whakatauawe hōkai, tuhituhi, āheinga rererangi, tirohanga, ātea wharepū, wakaama, whiriwhiringa motokā, porihanga, rākau me ngā whatu tirotiro, hanganga motokā, uku, whenua purea, huatau me ngā whakawehenga, kai, karawa, oranga tangata, rongoā, toto, mau taonga, ānake. He paihere kē ki te nohonga i ngā momo whenua nui me ngā ratonga.