Optical illusion cube

Is it a small cube in a room or a large cube that lacks one corner?

Is easier to draw this cube, rather  than to describe in words how to draw it ! We used a squared paper to draw (freehand!) the lines that create the cube, counting six segments to the outer cube and three for the inner cube. While drawing you have to follow the instructions carefully, only in that way it will be possible for everyone to realize this op cube!

When we finished the drawing in pencil, we chose two colours in three different shades: dark-medium-light (eg: 3 felt tip pens green dark-medium-light  and 3 felt tip pens red dark-medium-light).
Following the three directions of space we colored the chessboards with the colours chosen (the two darkest colours for the first side, the two medium colours for the second side and the two lightest colours for the third side).
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  2. Hi,Great blocks! I love your blog and your nice ideas :-)Have you ever tried to use isometric paper to the project? I used that with my 4th graders – if you want to see, please go to: http://www.frubilledkunst.dk/op-art-del-6-terninger(It's in Danish, but there is a translator and lots of pictures :-)Tina

  3. Hi Tina! Thank you! I had a look at your blog and is very useful!!!Many thanks for your suggestion!

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