EX (Type 1):
des chaussettes
des chaussures
une jupe
Their common factor is: They are all three worn on the bottom half of the body.
EX (Type 2)
des chaussettes
une jupe
un chapeau
L'intrus (the intruder) is un chapeau, because it is worn on your head, but the other two are worn on the bottom half of your body.
ATTENTION!: With this kind of assignment, the reason can NOT be something about spelling or gender It has to be about how the thing is used, or what substance it's made of, or something like that. Also, don't just make the reason, "they're all in the kitchen" or "they're all used with food", because most all of the vocab words are related to the kitchen and to food.
(Look at the new packet of vocabulary (Les Articles de Cuisine). You are going to make 10 groups, with three words in each group. The idea is to put three words that have something in common (and explain that common feature, in English), or, to put 2 words that have some common factor, and a third that does not go with the others (that's the intruder). Explain in English. )