LM: The teacher says there are twelve different shapes!
CW: That may be so, but I don't believe it.
LF: If joined together properly there are twelve - she said so.
CW: Have you found them?
CW: NO. You have not! I don't think you have anywhere near twelve solutions. You pair never work systematically at anything.
LM: We do have seven though Chi Wing.
CW: Listen just what were you asked to do? Little Fung you explain...
LF: Each 'animal' is made up of five squares.
LM: Always five squares!
CW: Little Ming shush, Little Fung carry on please..
LF: The squares have to be joined in a special way...
CW: Before, you said ONLY edge to edge, that is right isn't it?
LM: Yes, not corner to corner or ....
CW: Little Ming quiet - you never listen to the whole story..
LF: The edges must be completely touching each other.
CW: Show me please..explain..
( With squares of paper CW is shown....)
LM: But not like this ..
CW: So if we move them around systematically we should be able to find the twelve different ones.
LF: Yes...but we can only find seven..
LM: Perhaps we should have sketched out those we have already found.
LF: I think we should start again ..
CW: Yes let us start at the beginning ...with all the squares in a line..
LM: Let us begin by moving one square at a time..
CW: So which square shall we start with?
LF: Does it matter?
LM: Yes, if we are to be systematic like Chi Wing always is, and find all twelve..
CW: So instead of bickering - which square shall we start with?
In the meantime, complete the silhouettes of Chi Wing studying the problem, then working systematically. There are more activities in the notes , and the story continues in World of Tan 26 - Old Chestnut .