Always erase the white board! An important lesson in multi-age learning

IMG_3688 This morning, when my kindergarten math class sat at the table, I was ready to teach them about polygons and hexaflexagons.  However, they were completely distracted by the exponents lesson left on the white board from the day before.  One boy (my son, actually) said, “Six to the power of two equals thirty-six.” “How did you know that?” “I heard daddy teach it in his Thursday afternoon class.” Another student said, “Can I have a piece of paper?  I want to copy that so I can memorize it.”  I just gave in.  I guess we’re doing exponents today!