³Ê¹« °£´ÜÇØ ¿Ã¸®±âµµ ¹Î¸Á ½º·´³×¿ä. Ãß¼®¶§µµ ÅõÈ£ ³îÀ̸¦ ¸¹ÀÌ ÇÏ´õ¶ó°í¿ä.. ¾ÆÁÖ °£´ÜÇÑ ÅõÈ£ ¸¸µé±â. 1..³ª¹« Á£°¡¶ô¿¡ ±æ°Ô ÂõÀº »öÁ¾À̸¦ ³¡¿¡ ºÙ¿©ÁÝ´Ï´Ù. 2..¾ÆÀÌ¿¡°Ô ¼± ¹ÛÀ¸·Î ³ª¿ÀÁö ¾Ê°Ô °Å¸® Á¶Àý Çϸç Å«Åë ´õ ÀÛÀºÅë¿¡ ´øÁö±â ³îÀ̸¦ ÇÕ´Ï´Ù. 3.. »çÁø¿¡´Â ¾øÁö¸¸. ÁÖ»çÀ§¸¦ ´øÁ® ³ª¿À´Â °º¼ö ¸¸Å Åë¿¡ ³Ö¾î º¸±â.. ¼ýÀÚ °øºÎµµ ÇÏ°í. ¸î°³ ´øÁ®¼ ¸î°³°¡ µé¾î°¬´ÂÁö »¬¼À °øºÎµµ ÇÕ´Ï´Ù. È°¿ë¿¹¹® ÅõÈ£ ³îÀ̸¦ Çغ¸ÀÚ. Let's play the tuho game. ¼±¿¡ ¼¼ Åë ¼ÓÀ¸·Î ¸·´ë±â¸¦ ´øÁ® º¸ÀÚ. We stand in the line and throw the stick into the jar. 10°³ÀÇ ¸·´ë±â¸¦ ÁÙ²². I will give you 10 stiks. ÁÖ»çÀ§¸¦ ´øÁ®º¸ÀÚ. Let's throw the die. it's 4 4°³ÀÇ ¸·´ë±â¸¦ Åë¼Ó¿¡ ³Ö¾îº¸ÀÚ. Let's throw 4 sticks into the jar. Åë¼Ó¿¡ ½ºÆ½Àº ¸î°³ Àϱî? How many sticks in the jar? 2 ¶¥¿¡ ¶³¾îÁø ½ºÆ½Àº ¸î°³? How many sticks fell off floor? 2 4°³ÀÇ ½ºÆ½Áß¿¡ ¶¥¿¡ ¶³¾îÁø°Ç 2°³ ÀÔ´Ï´Ù. Åë¼Ó¿¡ ÀÖ´Â ³²¾ÆÀÖ´Â ½ºÆ½ÀÇ ¼ö´Â? There were 4 sticks at first but 2 of them just sticks fell off floor, how many sticks in the jar? µ¡¼ÀÀÌ´Ï »¬¼ÀÀÌ´Ï? Is it addition or subtraction? ÀÌ°ÍÀ» »¬¼À½ÄÀ¸·Î ¾²¸é, We can write a number sentence. 4 minus 2 is equal to 2. ¸Â´Â ¹®ÀåÀÎÁö ¸ð¸£°Ú³×¿ä.