The acclaimed pocket books from Professor Smudge Published by DEXTER Graphics
The TREES Christmas card pdf file consists of two A4 pages in high resolution.
Page 1 contains the Artwork for the card. Page 2 has instructions and an explanation of the maths.
If you print Page 1 on one side of an A4 sheet of ordinary paper (eg 80 gsm), it can be folded twice to produce a card.
Better still, print Page 1 on both sides of a thicker A4 sheet (eg 125 gsm), then cut it in half to produce two cards.

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The outer and inner pages of the card
look like this, but in high resolution.
The text on the first inside page asks
Which is longer, the total length of the
red lines or the blue lines?

sample pagehow to orderProf Smudgehelp and answersyour methodsDexter GraphicsFULL digitised MATHS MEDICINE Only 270p