Al Tamimi, A.-R. (2017). The Effect of Using Ausubel’s Assimilation Theory and the Metacognitive Strategy (K.W.L) in Teaching Probabilities and Statistics Unit for First Grade Middle School Students’ Achievement and Mathematical Communication. European Scientific Journal, ESJ, 13(1), 276. https://doi.org/10.19044/esj.2017.v13n1p276