A picture is worth a thousand words.....
Simply call up a student from the class. Make sure there are two large figures drawn on the board A and B.
Stand beside one and point to the target language (also on the board) .What colour is ........... (.........)? It is .......... The student answers and then using coloured chalk or marker, colour it. The do the converse....
Prior to this, make sure to engage the students by simply asking What colour is (student's name) ........? Or get a higher level student doing this or in groups/leader led - while you drink your coffee :)
David
EFL CLASSROOM 2.0