Eric.ed.gov – Understanding Math – Part I.
Læst 5 gange eric.ed.gov har udgivet: This is the first workbook-text in a two-part series written for deaf students. It is remedial in nature, aimed at the secondary level, and covers addition, subtraction, multiplication, and division of whole numbers. The use of the number 10 in explaining the concepts presented is stressed throughout. For the second workbook, see SE 015 828, and for the teacher’s guide, see SE 015 829. (DT) Link til kilde