Win 25

This week we are practicing building numbers with 10's and 1's.  I have each child keep a baggie of 10's and 1's with their supplies for the year.  At the end of the year, I collect them all and sterilize.

Materials:

Place value blocks (10's and 1's)

Place value mat (with hundreds, tens and ones)

die

1.  Each child needs a place value mat and a bag of tens and ones.  Each team of 2 or 3 needs 1 die.

2.  The first player rolls the die.  He places that many ones in the ones section of his mat.

3.  The next player repeats.

4.  Play continues until one player has 10 or more in the ones place.  That player must trade 10 ones for a 10, which she places in the 10's place.

5.  Continue until one player reaches 25 or higher.

Variations:

This game becomes too easy quickly for some students.  Because there is not much strategy involved, I offer variations to those kids.

1.  The first variation is the same game with 2 dice.  Roll both dice, add them together and get that many cubes.  Make trades when necessary.  Play this game to 50 instead of 25.

2.  Reverse the game.  Begin with a 100's block in the hundreds section.  Roll 2 dice, and subtract the sum from the 100.  The first play of the game can be very challenging.  Take turns and play until one player reaches 0.