;
Lorem Ipsum Dolor Spring 2016
4
reflections, and position papers without empirical data were all
excluded. The above set of criteria for inclusion was created
according to the recommendations by What Works Clearninghouse
(WWC) (http://ies.ed.gov/ncee/wwc/topic.aspx?sid=9 ) to provide
scientific evidence.
Although the electronic search yielded 273 results, with the
strict inclusionary criteria we only found five studies to be included
in this review. It appears that there is not adequate research
focusing on teaching mathematics to students with VI, at least no
adequate research with the required rigor. On the other hand, all
these five studies were conducted only within recent years (2011-
2014), indicating an increasing attention to this important education
topic. All five studies are single-case studies in nature, suggesting
the difficulties with recruiting large group participants with VI.
Of the studies included, two main intervention methods used to
instruct VI students in mathematics emerged: assistive technologies
and
63
