>Eileen wrote: >>>As a fourth grade teacher I also permitted students to figure out the >"decimal name" for various fractions. An interesting side effect to this >was that students performed this operation so frequently that by the end of >the year they could tell you pretty accurately the "fraction name" for a >decimal.>> > >Thank you for sharing this with us. However, there is something which is >not totally clear to me. Have they already known very well the basic concept >and algorithm behind it? Is the role of calculator in this rare example >just to save their time on performing the operation, so they can work on >so many probelms that they got the number sense? If yes, I will totally agree >with you about the benefit. Technically, how to do control in a class >and make sure everyone has mastered it already? or you only let students >who've already mastered it to try it on calculator? Again, I still think >this activity can be better planned and controlled in a computer lab with >well written software. This will also make it much easier for teachers. > >Chi-Tien
As a public school teacher - my comment is - what computer lab? My building has 800 students and a total of 7 Macs and a collection of Lazers and Apple II. I'm fortunate enough to be the only teacher who has a Mac in the classroom all the time. I think I'd be safe in assuming that maybe half of the public school in the U>S> have computer labs - and those that do are probably pretty tightly scheduled.