AN ACTIVE LEARNING UNIT ON REAL NUMBERS
July, 1970
DALE FISHER
Appendix A from “A Feasibility Study on Active Learning With Real Numbers” an M.Ed. thesis completed by Dale Fisher in the Department of Curriculum and Instruction
Reprinted with permission of the author by the Mathematics Council of The Alberta Teachers’ Association March, 1971
122 – 149
Are you still puzzled about sqrt(2)? Let’s see if we can solve the problem by examining the following decimal numbers: