1/27/2019 -- Early Elementary I: One more chessboard game, then the abacus. (Oleg Gleizer)

After a warm-up, students will figure out a winnign strategy for a fun chessboard game, called Move a Rook into the Corner. If time remains, students will start learning how to use an ancient computer, called the abacus. This will allow students to better understand the working and advantages of the decimal place-value numeral system currently in use by humanity.