Interesting, Q!

Also, the video is a hoot. Reminds me of my years - not that long ago - helping my grandson, who lived with me, do his math homework. This mind-boggling math started when he was in third grade. I could not make sense of it and showed him how I was taught, which he thought was so much easier. I, erroneously figured that getting the right answer was the point. WRONG!! Every answer was considered incorrect and slashed through with a giant red X, even though the answers were correct, and he showed his work doing it the way I knew. From then on, I spent a lot of time googling how to do his math. He was always confused, so the teacher(s) weren't proficient at teaching it, and he definitely needed assistance. Homework came with little or no instruction. Google became my homework buddy. Stupid way to educate kids!

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