van der Walt, M., J. Maree, and S. Ellis. 2006. “An Investigation Regarding Metacognition in the Learning of Mathematics in the Senior Phase”. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt; 25 (3), 177-94. https://doi.org/10.4102/satnt.v25i3.159.