# Math Lesson Plan: Chisanbop (Korean counting to 99)

Prerequisite:

1. Knowledge of Tens and Ones  (for example, for 23, the “2” represents “20” and the “3” represents “3 ones”)

Objective:

1. Learn a quick method of adding to 99 with your hands……This really is not that difficult to learn.  My grades 1 and 2 could do it.  Students love to do Chisanbop.

Materials:

1. everyone’s  two hands
2. chart paper showing values of right and left hands:  right fingers =1 each, right thumb =5, left hand fingers = 10, left thumb =50

Method:

1. Tell students that you have a quick game to show them.  It will make their two hands lightning-fast, like a computer.  This game will allow them to add two 2-digit numbers up to 99, without pencil and paper.
2. Have students spread out their fingers and hold them a few inches from their desktops.  Tell them “you just made the number zero. When none of your fingertips touch the desktop, that is zero.  Only when your fingertips touch the desktop, do you create a number. “