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Table 1 Descriptive statistics for teacher, classroom, and student characteristics

From: The impact of an intervention program on students’ spatial reasoning: student engagement through mathematics-enhanced learning activities

  Total sample Intervention Control
N (students) 337 193 144
Years of teaching experience: range 1–23 1–19 1–23
Years of teaching experience: M (SD) 9.33 (7.06) 8.90 (6.45) 9.88 (8.18)
Class size: M 24.07 24.13 24
Student age: M (SD) 11.61 (.59) 10.96 (1.07) 10.39 (0.83)
Student gender (% female) 51.6 47.2 59.3
  1. There were no significant differences in teaching experience between the two conditions; t(16) = .28, p = .78
  2. M mean, SD standard deviation