What are the coordinates of the coloured dots that mark out the
tangram? Try changing the position of the origin. What happens to
the coordinates now?
Find the missing coordinates which will form these eight
quadrilaterals. These coordinates themselves will then form a shape
with rotational and line symmetry.
A game for 2 players. Practises subtraction or other maths
This month's game is linked with our World of Tan. It is for 2
players. Little Mai and Little Fung explain how you play:
LM: First you must decide where to place the origin, (0,0). It
can be anywhere.
LF: Now you must decide who is blue and who is red.
LM: Blue goes first and chooses a point. Blue has to state the
position of their chosen point in relation to the origin.
LF: BUT, if you get the coordinates of the dot wrong, you don't
get that point.
LM: And you lose a go.
LF: Red now chooses a point and gives its coordinates.
LM: You then take it turns to go?
LF: Until one person has four dots in line of