Don't laugh!...

[Little-Miss]

How do you measure a IWB? Is it diagonally like a TV? Trying to work out how big my existing ones are so i can sort out these new projectors.

[fawkers]

How do you measure a IWB? Is it diagonally like a TV? Trying to work out how big my existing ones are so i can sort out these new projectors.

It is diagonally like a TV or else i've been doing it wrong for a long time!

[EduTech]

Yep diagonally :-)

[K.C.Leblanc]

You measure the diagonal, times it by the distance between the projector and the board (measured perpendicular to the floor), add on the width of the projector's lens, and then divide the whole lot by the number of days in the month.

And unless you do this standing on a stool it won't work.

[Little-Miss]

You measure the diagonal, times it by the distance between the projector and the board (measured perpendicular to the floor), add on the width of the projector's lens, and then divide the whole lot by the number of days in the month.

And unless you do this standing on a stool it won't work.

Hmmm, what about star alignment!?

[Little-Miss]

James....did you fall asleep in Thai food?

[bossman]

Is that diagon alley as in "Harry Potter" hehe!!

[Edu-IT]

Hmmm, what about star alignment!?

As long as you're patting your head and rubbing your belly at the same time I think we can factor this out of the equation.

[K.C.Leblanc]

Hmmm, what about star alignment!?

That's now considered obselete, however some purists will still say you need to have a picture of William SHatner attached to your forhead (a few deviants even attach a picture of David Hasslehoff to their left knee)

As long as you're patting your head and rubbing your belly at the same time I think we can factor this out of the equation.

That's a very advanced technique. Remember to only rub your belly clockwise and have some gravy granuals on hand just in case.

[Domino]

it's not just diagonal size thats an issue though, as the newer SMART range is also available in the 16:9 orientation, rather than just 4:3

as, obviously, are some projectors.

Best to check if they look widescreen

[Little-Miss]

I have to say, i am a fan of the old skool methods BUT is Patrick Stewart acceptable?

[EduTech]

James....did you fall asleep in Thai food?

Nope :-) Just a few of the best things at BETT lol although not quite sure about the sleeping part but i might have wrapping tape around EduTech hehe

[Little-Miss]

it's not just diagonal size thats an issue though, as the newer SMART range is also available in the 16:9 orientation, rather than just 4:3

as, obviously, are some projectors.

Best to check if they look widescreen

Nah, these are promethean boards from 2006....no widescreen involved lol!!

Plus.....they're 78"...