The Game of Nim
![Picture](/uploads/4/8/5/9/48599983/1064855_orig.jpg)
Materials:
Procedures:
- Small objects, like buttons, coins, toys or beads, etc
- Two players
Procedures:
- Instruct your child to find 15 small things, for example: buttons.
- On each player's turn, he or she can take one or two buttons away. Take turns doing this.
- The loser is the player who takes the last button.
- Eventually, you can teach your child the winning strategy: Just make sure on her turn she leaves 13,10, 7, 4 or 1 objects. Give the game a challenging twist by using a different number of objects or by taking away different amounts.
reference: http://www.education.com/activity/article/Nim_Game/
Proper Proportions
![Picture](/uploads/4/8/5/9/48599983/5810687_orig.jpg)
Materials:
Procedures:
- Deck of cards with the face cards (jack, queens and kings) removed
- Paper, one sheet per player
- Pencil, one per player
Procedures:
- For the purposes of the game aces = 1.
- Have one of the players to shuffle the deck of cards and deal four cards to each player. The remaining cards should placed face down in the center of the table.
- Ask the players to take their pieces of paper and draw two fraction bars side by side with an equals sign in between them. Each player will draw this on his own sheet of paper.
- Players take turns drawing a card from the deck and discarding one from their hand.
- Each time a player finds a proportion in his hand, he should call out "Prop!" Then, they lay his cards on their paper in the proper places to make a true proportion statement.
- For each correct answer, players earn a point.
- Each time a player wins a point, all players should discard their cards, the deck should be shuffled and everyone should be dealt new hand of four cards.
- Continue playing until the deck is depleted.
- To make the game more challenging, include the face cards and assign to them whatever values the players or teams agree upon.
reference: http://www.education.com/activity/article/proportion-rummy/