ISBN-13: 9780367370909 / Angielski / Twarda / 2020 / 226 str.
ISBN-13: 9780367370909 / Angielski / Twarda / 2020 / 226 str.
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.