Students chose different ratio-problem strategies for different problem types, with unit ratio most frequent¶

Claim · All claims
Evidence · 1 study · causal r2 · q2
Currency · newest study 2017 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? After the intervention, the most frequently used strategies were unit ratio, cross-multiplication, and equivalent fractions; equivalent fractions predominated in comparison-elongation problems and unit ratio and cross-multiplication in part-part-whole and related-groups problems. → Şen 2017

Evidence¶

Şen 2017¶

Şen, C., & Güler, G. (2017). Effect of Strategy Teaching For the Solution of Ratio Problems on Students' Proportional Reasoning Skills. Malaysian Online Journal of Educational Sciences, 5(2). https://eric.ed.gov/?id=EJ1142503

q2 · i? · causal · r2

Analysis of which strategies experimental and control students used on PRT questions after the intervention (Table 8). Unit ratio was used 46.8% of the time in the experimental group and 30.2% in the control group; the authors note it "is an intuitive strategy".

"It was determined that students more frequently used the equivalent fractions creation strategy in the questions included in the comparison-elongation problem type. In the answers given to part-part-whole and related groups problem types, it was seen that unit ratio and cross-multiplication strategies were more frequently used."

Discussion¶

Related Claims¶

• Homework solutions showed experimental students using multiple strategies correctly while control students made additive errors — related
• Teaching problem-solving strategies for ratio problems raises sixth-graders' proportional reasoning posttest scores above regular instruction — related
• Strategy teaching increased students' use of problem-solving strategies and reduced error types in ratio problems — related