Focus on Ratios and Proportions
Autor
Matthew F. Wyneken
, Frances R. Huntoon
, Mary D. Abele-Austin
, Jean D. Sequeira
, Marjorie M Petit
, Robert E. Laird (Vermont Mathematics Institute, Usa)
This book makes math education research on ratios & proportions readily accessible to pre-and in-service teachers of grades 6-8. Using extensive samples of student work and based on research gathered in the OGAP, this easy-to-use book demonstrates how students develop understanding and fluency involving ratio & proportion.