Bibliographic Title:Human Sciences Research Council. Trends in International Mathematics and Science Study (TIMSS) 2015 Grade 9: Mathematics teacher (BTM) - South Africa as one of 39 countries. [Data set]. TIMSS 2015 Mathematics Teacher. Version 1.0. Pretoria South Africa: Human Sciences Research Council [producer] 2015, Human Sciences Research Council [distributor] 2017. http://dx.doi.org/doi:10.14749/1509535425. Output Type:Data set Read more