Research Article
Children's Use of Arithmetic Shortcuts: The Role of Attitudes in Strategy Choice
Table 3
Percentage shortcut use in the pretest and first posttest on small and large problems in each grade.
| | | Session | | | Pretest | First posttest |
| | Grade 2 | Inversion | | Small | 37.5 (7.8) | 49.0 (8.7) | | Large | 37.5 (8.7) | 52.1 (8.2) | | Grade 3 | | | | Small | 51.4 (6.4) | 69.3 (7.2) | | Large | 56.4 (7.3) | 74.3 (6.8) | | Grade 4 | | | | Small | 34.3 (5.9) | 62.8 (6.5) | | Large | 44.8 (6.5) | 72.1 (6.1)
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| | Grade 2 | Associativity | | Small | 11.5 (5.9) | 18.8 (8.1) | | Large | 15.6 (7.0) | 25.0 (9.0) | | Grade 3 | | | | Small | 30.7 (4.9) | 42.1 (6.7) | | Large | 35.0 (5.8) | 50.0 (7.4) | | Grade 4 | | | | Small | 8.7 (4.4) | 31.4 (6.1) | | Large | 23.8 (6.7) | 47.7 (6.7)
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Note. Standard errors are in parentheses.
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