This study replicated Durkin et al. (2021) to examine the effects of the Comparing and Discussing Multiple Strategies (CDMS) instructional approach on studentsâ algebra learning. To test the generalizability of prior findings across cultural and curricular contexts, we implemented an isomorphic intervention in Grade 10 classrooms in China. Within a quasi-experimental pretestâposttest design, 251 students from 12 classes and 6 teachers participated. Bayesian multilevel analyses confirmed robust positive effects on studentsâ potential flexibility and positive directional trends for procedural flexibility, conceptual knowledge, and procedural knowledge, while effects on spontaneous flexibility were negligible. These findings suggest that CDMS may support repertoire expansion before enabling strategic selection. Unlike in the previous sample, our teachersâ self-efficacy and outcome expectancy beliefs remained stable. Nonetheless, variations in instructional quality continued to shape the CDMS intervention effects on student algebra learning. Implications for culturally responsive replication, instructional design, and professional development for algebra teaching are discussed.
The impact sheet to this article can be accessed at https://doi.org/10.1163/26670127-bja10035 under Supplementary Materials.
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| å ¨é¨æé´ | è¿å»ä¸å¹´ | è¿å»30天 | |
|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 170 | 170 | 97 |
| å ¨ææµè§æ¬¡æ° | 27 | 27 | 18 |
| PDFä¸è½½æ¬¡æ° | 58 | 58 | 41 |
This study replicated Durkin et al. (2021) to examine the effects of the Comparing and Discussing Multiple Strategies (CDMS) instructional approach on studentsâ algebra learning. To test the generalizability of prior findings across cultural and curricular contexts, we implemented an isomorphic intervention in Grade 10 classrooms in China. Within a quasi-experimental pretestâposttest design, 251 students from 12 classes and 6 teachers participated. Bayesian multilevel analyses confirmed robust positive effects on studentsâ potential flexibility and positive directional trends for procedural flexibility, conceptual knowledge, and procedural knowledge, while effects on spontaneous flexibility were negligible. These findings suggest that CDMS may support repertoire expansion before enabling strategic selection. Unlike in the previous sample, our teachersâ self-efficacy and outcome expectancy beliefs remained stable. Nonetheless, variations in instructional quality continued to shape the CDMS intervention effects on student algebra learning. Implications for culturally responsive replication, instructional design, and professional development for algebra teaching are discussed.
The impact sheet to this article can be accessed at https://doi.org/10.1163/26670127-bja10035 under Supplementary Materials.
| å ¨é¨æé´ | è¿å»ä¸å¹´ | è¿å»30天 | |
|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 170 | 170 | 97 |
| å ¨ææµè§æ¬¡æ° | 27 | 27 | 18 |
| PDFä¸è½½æ¬¡æ° | 58 | 58 | 41 |