Outdated and worn-out textbooks are often shared by six or more students in many parts of the world. In Tanzania, for example, only 3.5% of all sixth grade pupils had sole use of a reading textbook. In Cameroon, there are 11 primary school students for every reading textbook and 13 for every mathematics textbook in second grade. Workbooks, exercise sheets, readers, and other core materials to help students learn their lessons are in short supply. Teachers also need materials to help prepare their lessons, share with their students, and guide their lessons.
