# Problem solving activities of two middle school students with distinct levels of units coordination

> Research article (The Journal of Mathematical Behavior, 2020) · cited 16× · AI/ML

**Wikidata**: [openalex:W3040454570](https://www.wikidata.org/wiki/openalex:W3040454570)  
**Source**: https://4ort.xyz/entity/problem-solving-activities-of-two-middle-school-students-with-distinct-levels-of-units-coordination