Content coverage in the 8th-grade mathematics assessment, TIMSS 1999, 2003, 2007, and 2011 (percentages devoted to each topic)
1999* | 2003** | 2007** | 2011** | |
---|---|---|---|---|
Numbers | 37% | 30% | 30% | 30% |
Data representation | 13 | 15 | ||
Data and chance | 20 | 20 | ||
Geometry | 12 | 15 | 20 | 20 |
Algebra | 22 | 25 | 30 | 30 |
Measurement | 15 | 15 |
* Post assessment analysis of actual items used in assessment
** Target instructions to test developers
Source: Martin and Mullis (2001); Mullis et al. (2003); Mullis et al. (2005); and Mullis et al. (2009)