OODS

I went to Japanese School every Saturday when I was in elementary school.  I can honestly say I felt it was a total injustice that I had to go to school on a SATURDAY.  However, I did have some memorable experiences.  I was sitting in class one Saturday and the teacher was teaching us some Kanji and new Japanese words.  He started talking about "oods" and then he wrote in Japanese what that was.  I turned to the girl sitting next to me, who was from Japan, and I said, "oods? what is that?".  She said, "you know oods".  I looked at the blackboard and saw in English, the teacher had written the letters "oods" on the board.  I was quite perplexed because everyone else seemed to understand what he meant.  Finally, the girl sitting in front of me moved her head slightly and I saw he had written, the word "woods" on the board.