# Rational number and proportional reasoning in early secondary school: towards principled improvement in mathematics

> Research article (Research in Mathematics Education, 2015) · cited 14× · AI/ML

**Wikidata**: [openalex:W2117703645](https://www.wikidata.org/wiki/openalex:W2117703645)  
**Source**: https://4ort.xyz/entity/rational-number-and-proportional-reasoning-in-early-secondary-school-towards-principled-improvement-in-mathematics