Correction to: Res Pract Technol Enhanc Learn

https://doi.org/10.1186/s41039-018-0094-8

In the original publication of this article (Ilomäki & Lakkala, 2018) the appendix Table 9 in PDF is in wrong place due to typeset mistake, which should be at the end of the manuscript. The original PDF version has been corrected.