 Victories include a minimum school term, compulsory school attendance, state board of education, child labor laws, free textbooks, school consolidation, equal educational opportunities for all children, transportation for students, the teacher retirement system, school bus safety laws, the school foundation program, a code of professional ethics, and a revised Missouri Constitution that included sections on education and taxation, especially school levies.In its efforts to protect the interests of education and educators through the years, MSTA has also participated in many court cases.Suits were initiated concerning diversion of state taxes, reduction of state school funds, securing a share of insurance fines, the governor's veto of school appropriations, discipline of students by teachers, constitutionality of a majority vote, and constitutionality of the state cigarette tax.