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Descriptive statistics for seventh-grade students’ performance in ratios unit in Schools A and B.
| School A (n = 36) | School B (n = 76) | ||||
|---|---|---|---|---|---|
| Measure | Max | M | SD | M | SD |
| Ratios-pretest (topic-specific prerequisite knowledge) | 10 | 8.60 | 0.85 | 8.89 | 1.53 |
| No. of RSMs | 9 | 6.83 | 1.44 | 6.16 | 1.38 |
| Ratios-posttest | 10 | 7.82 | 1.36 | 6.59 | 1.75 |
