A focus on ratios and proportions: bringing mathematics education research to the classroom

Understanding ratio, rates, and proportions

Deepening understanding of ratio and proportion concepts

Understanding the OGAP proportionality framework and progression

Using the OGAP ratio and proportion progression to inform instruction and student learning

Structures in proportion problems

Structures in ratio and rate problems

More problem contexts

Understanding the cross products procedure

Percents-building understanding, flexibility and fluency.