ISBN-13: 9780367462888 / Angielski / Miękka / 2020 / 224 str.
ISBN-13: 9780367462888 / Angielski / Miękka / 2020 / 224 str.
This innovative text offers a unique approach to making mathematics education research on addition, subtraction, and number concepts readily accessible and understandable to pre-service and in-service teachers of grades K-3.