Thesis (Ed.M.)--Boston University / Purpose of the workbook: It is the purpose of this workbook to present a series of special activity gtion sheets to be used a.s teaching devices and resource material in basic shop mechanics. These activity guides or instruction sheets have been devised for the use of pupil and teacher in classes for the mentally retarded ( cominonly called special classes). Scone of the workbook material: The activity guides herein presented have been developed and graded for 14 to 16 year old boys to whom the special class is a terminal room. The sheets are to be used in the industrial arts program, either in the section of the special class room used. for this purpose and taught by the special class teacher, or in the regular shop classes in unit shops and general industrial arts shops.