# Second Grade Elementary School Students? Differing Performance on Combine, Change and Compare Word Problems

> Research article (International Journal of School and Cognitive Psychology, 2015) · cited 10× · AI/ML

**Wikidata**: [openalex:W1032052865](https://www.wikidata.org/wiki/openalex:W1032052865)  
**Source**: https://4ort.xyz/entity/second-grade-elementary-school-students-differing-performance-on-combine-change-and-compare-word-problems