She's Not Dead!

I have a reason to believe she's not dead. A week ago, before my high school reunion, I received a letter. The letter looked very familiar. After going to my high school reunion, I realized the letter looked familiar because my high school math teacher once gave a copy to the entire class. Of course it was in code, so I had not the slightest clue what it meant. I still to this day have no idea what it means, but I do know that my high school math teacher is NOT dead!

Meadow Lake Elementary School - Brain Buster