Communication

 A brief history of communication

 What is communication?

 How your ears work

 What is sound?

 Ocean Odyssey

 Birds' Calls

 Sound Puzzle

2 comments:

  1. these are interesting one question I do not get that in the puzzle game you can just press a mutton to find out the answer?

    Ella

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    Replies
    1. Ms Lin: Ella, you need to listen to each puzzle piece and put them in order

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