Table 27
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)
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