1,000,000 dots

[rexboggs5]

In my pre-flipchart days, to give students an idea of the real size of large numbers, I had a Word page containing 10,000 asterisks, grouped by 10s (10 per row, 10 rows to make a square, 10 squares per row and 10 rows of squares). If this is confusing, you can see what I mean on page 1 of the attached flp.

I wondered if it would be possible to shrink this square, and make a flipchart page containing a 10 x 10 grid of such squares. Since 10,000 x 100 = 1,000,000, this would mean that we can have 1 million dots on a single flipchart page!

Well, it turns out that it is possible, and the resulting square can be found on page 2 of the attached flp.

You need to use the magnifying tool to see the individual dots/asterisks. It takes a while for the zoom to happen - there must be a lot of processing going on.

I will leave it as an exercise for the interested reader to create page 3 of this flp, which of course is to shrink the square on page 2 and put a 10x10 grid of them on page 3 .... :)

Ditto for pages 4, 5, .... :)

Finally it is interesting to note that the flp containing 1,000,000 dots only has a file size of 10KB.


Cheers

Rex

[markrobinson]

You have also discovered that not all companies that claim to have a "Zoom" facility really do!

You can literally zoom into the image with Promethean... another brand simply scales up the pixels to suggest they get bigger... meaning that they get blurry and you cannot dig into the detail.

For example you could create a single Art Gallery flipchart page by resizing large photos smaller - and then zoom into each picture to view it.

Yet they both call it "Zoom"...

Oh - and you can also annotate and interact with the Zoomed image with Promethean too!

If you set the pen tool slider to zero width (PC) - it will also be the same size at any zoom size.

[rexboggs5]

You have also discovered that not all companies that claim to have a "Zoom" facility really do! ... You can literally zoom into the image with Promethean... for example you could create a single Art Gallery flipchart page by resizing large photos smaller - and then zoom into each picture to view it.

I often use this facility, eg if I have some scanned images that are prepared worked solutions to some maths problems, I scrunch them up to the size of a pea and put the "pea" to the left of the problem. When it is time to look at the worked solution, I just tap it and enlarge it to fill the screen. .... works a treat, and the students are mightily impressed ....:D

Cheers

Rex

[chrisstone]

Some great comments and ideas here Rex
Thank you
Chris:cool:

[swvalley]

WOW - that just killed my system. I had to restart Activstudio. [clap]

VERY COOL though, I want to share it with our math team, but now I'm afraid, if it crashes Activstudio they may not open it again.