Albert Cahalan <[EMAIL PROTECTED]> wrote in news:[EMAIL PROTECTED]:
>> Learning the relations between different geometric figures is >> useful. > > I think it can be see best from similarity in the text. And explicit mention is always useful. >> AFAICS, it's part of grade 7 in the US. >> >> But surely the kids have heard the term «straight angle» >> before? (If not, they can learn it from Tux Paint! :) ) > > That's also 9th or 10th year and... it means 180 degrees! Sorry. I mean 'right angle', of course! :) >>> Old: "A rhombus has four equal sides." >>> New: "A rhombus has four equal sides, and opposite sides are >>> parallel." >>> >>> The first part is enough to define a rhombus. The second >>> part requires geometry. >> >> No, the first part defines a quadrangle. The second part is >> needed. > > four EQUAL sides > > That is a rhombus. Yes, I see it now. >> But the rhombus may as well be removed. It's just a rotated >> square, and Tux Paint supports rotating. > > No. This was the major error that convinced me to touch > that file in the first place. A rhombus with angles of > 30 degrees and 60 degrees is not a rotated square. Looks like I didn't try the tool. You can indeed change the angles. But having a star would be more fun ... :) Something else that has bothered me with the shape tools: They are extremely difficult to use (for me!). If I want to draw a chimney at the top of a roof, it takes several tries to get the correct size *and* position (because the 'click' defined the centre and not one of the corners, unlike other drawing programs). -- Karl Ove Hufthammer _______________________________________________ Tuxpaint-dev mailing list Tuxpaint-dev@tux4kids.net http://tux4kids.net/mailman/listinfo/tuxpaint-dev
