This week felt longer than usual. MONDAY - HALLOWEEN We had our annual Halloween costume contest at school. The school's birthday is Halloween. Some pretty fun costumes. I was a doctor. Figured I'd be nice to be Dr. & Dr. Gibson instead of Dr. & Mr. Gibson, at least for a day :) I made a short video of the costume contest: TUESDAY - PRE-ALGEBRA In a previous blog, I mentioned that this year I was going to let students use calculators during our 'Rational Number Operations' unit (doing all operations with positive and negative decimals and fractions). This unit…