This is giving me flashbacks to when DS11 was in 4th grade. His teacher wrote me a note beaming that DS had shown her a trick for checking to see if a number is divisible by 6.
Here's the trick:
1) See if the number is even.
2) See if the number is divisible by three by using the 'add the digits together and see if that number is divisible by three.'
I had never thought of combining these two facts into a "6 divisibility trick" as I'm always trying to get to the prime numbers ASAP, but she was totally thrilled. She had never heard that trick before and was so excited.
I tried to look for a positive explaination, but I was very afraid that DS was getting a 'swelled head' from being phrased for very 'no big deal' things. He already had so many of the signs of underachievment by that point. I tried to put on a calm, mildly positive tone. "What a nice trick, dear, I never thought of it that way." ((shrugs))
Glad that year is over.
((shrugs and more shrugs))
Grinity
