Integrating simple calculator in teaching and learning

there was a presentation about this topic conducted by Group 1. they had presented it well and we hope that we could that well too. actually, we are not really sure about our topic that we are supposed to present on 5th week which is designing task for geometry exploration using dynamic geometry sofware. we've tried to surf the internet to find ideas and info about it..but we're still lost in somewhere..

overall, talking about using calculator in classroom, we find it very useful and it is a good tool for teaching mathematics in a meaningful and enjoyable atmosphere.

we find that this website is very useful for readings on this topic:

http://www.amblesideprimary.com/ambleweb/mentalmaths/tangram.html

http://www.education.vic.gov.au/studentlearning/teachingresources/maths/mathscontinuum/wmathly/w15ip.htm