About Interactive Projectors
Interactive projectors are considered to be a superior teaching tool. It’s even more important with the shift in teaching to more student involvement.
Interactive projectors vary a great deal. In particular there are several things to consider.
First as a group, interactive projectors cost significantly more than those that are not. (Let’s count projectors with simple remote mousing as non-interactive.) Today’s interactive projectors typically cost more than $1000 and up to $2000 although educational discounts keep most of them around $1500 or less. That’s still a far cry from traditional projectors from $400 to $800, for similar WXGA resolution.
The need for interactivity therefore must be weighed against the issue of how many classrooms can a school, or district equip. Should a school go with 20 “standard projectors” or 7 particularly good interactive ones, or perhaps go with 2 interactive projectors and 12 traditional ones.
That of course depends on the amount of use, and benefit, something that may well be a teacher by teacher issue. As we all know, some teachers really take to technology, others do not.
Most pens need to be pressed against the screen, which means in reality, whiteboards especially those designed to double as a screen, work better than screens, which tend to get damaged. TI – Texas Instruments, the folks that bring you the DLP chip, have developed a pen system that their OEM’s can use. One advantage is that they can be used from back in the room. That’s a plus for the teacher who wants control, but wants to walk around the classroom, seeing what the students are doing. The downside, of course, is that it gets pretty imprecise at distances. Oh, fine for underlining something, but not for writing a sentence.