Student or Learner
I know that “think about somebody/something” = consider, concentrate the mind on:
You’re quiet this morning. What are you thinking about?
I’ve thought about what you said and I’ve decided to take your advice.
I know also that “think of somebody/something” = remember, bring to mind, have an idea:
She told me her name, but I can’t think of it now. (not think about it)
That’s a good idea. Why didn’t I think of that?
Would you be kind enough to explain to me the very small difference in the meaning of the “think about” and “think of” in the following sentences?
My sister is thinking of going to Canada.
My sister is thinking about going to Canada.
Tom was thinking of buying a new car.
Tom was thinking about buying a new car.
Thank you for your efforts.