You can buy the desk in the store, and some are quite expensive. Also I think that the preteens can just be best friends until they get a little older. You build the school on the town map, and when you click the bubble you can make them go to school in the morning, the afternoon, and at nigh.
Also if you look up sim cheats on YouTube you can get 10,000 in the matter do seconds, that's how I got 400,000 simollions.
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