"Principles and Standards for School Mathematics" outlines essential features crucial to teaching mathematics so that all students have opportunities to learn mathematics content with conceptual understanding. Although the document outlines extensive goals for the teaching and learning of mathematics, the majority of classrooms fall short in its…

One of the most difficult problems of modern school practice is how to prevent overcrowding the curriculum, breaking up the school day into small fragments of time devoted to disconnected tasks, and dissipating the energies of the children to such an extent that the process of education is hindered rather than helped by the attempts to enrich and…