Improving mental computation skills in middle years students


The Middle Years Mental Computation (MYMC) strategy looked at changing how new skills were taught, by using mental images and their manipulation before developing written methods. MYMC developed students' conceptual understanding of whole and rational numbers.

The MYMC diagnostic tool supported the analysis of error patterns to determine areas to be targeted and, in conjunction with the Scaffolding mental computation document, facilitated planning for targeted lessons. Pre- and post-testing of students using the MYMC test in 2009 and 2010 showed a marked improvement in achievement in all areas tested.


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