for the Blind, Philadelphia, PA 19151,

The Abacus Made Easy: simplified manual for teaching the Cranmer Abacus.

Louisville, KY, Amer. Printing House Blind, (1967). Large print. VG lg sz PB. Dr. Davidow has been a teacher at Overbrook since 1935 when she came after having lost her sight at 10. While at Overbrook. she was instrumental in establishing the use of the Cranmer Abacus as a part of the regular curriculum. Her enthusiasm for this pioneer method of teaching mathematics led others to follow her eagerly. Mastery of this tool has been of inestimable help in increasing the speed and accuracy of mathematical computation and in the hopes that these step-by-step explanations will make it much easier for each teacher to learn the procedure as well as to facilitate the teaching of the operations to the student.

Crabtree's Collection Old BooksProfessional seller

Book number: BOOKS054775I

Catalogue: Disability

Wise, Janet,

Touch Reading: a manual for adults who want to learn to read Braille.

NY, Janet Wise Publisher, (1960). VG PB. English Braille - American revision.

Crabtree's Collection Old BooksProfessional seller

Book number: BOOKS054764I

Catalogue: Disability