Today, I began the lesson by testing some of Oliver's ability to divide whole numbers by one digit whole numbers. We talked about just what the significance of the remainder is, and how to equate this remainder to a decimal number. We also discussed limits on division that should be set when dividing through to get a decimal instead of a remainder. Next, we moved onto working on factors of different large numbers. I also had a chance to explain which numbers are prime numbers (i.e. a number having only factors of 1 and the prime number). We worked through which of the first 33 numbers are prime numbers.