Reuse an old tree to make a log pathway in your garden. Good use of "yard" trees and other wood that can't be milled; works much better in climates without termites. Good drainage under the log rounds will make the path last longer.
Grandparent Interview Questions (free printable) and a "Lessons I Learned when you turned post. Do your kids know the life stories of their grandparents? Let this printable and post encourage you to ask.
Brain Hat Activity:Learn about the major lobes of the brain while utilizing multiple intelligences. I use this activity to explain the structure of the cerebrum and cerebral cortex, learn the lobes, and learn the functions of each regions of the brain.