Improving Students Skills to Solve Elementary Equations in K-12 Programs Using an Intelligent Tutoring System. - Arcanjo Miguel Mota Lopes; José Francisco de Magalhães Netto; Ricardo A. L. de Souza; Andreza Bastos Mourão; Thais Oliveira Almeida; Dhanielly P. R. de Lima (FIE, 2019)