Counting and Number Activities 
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The Number Sense Activity 
Mora, A Finger Game 
Quipu Activity 
Krypto 
In this activity, we are trying to help the students appreciate their ability to count. Number sense is not counting , but the ability to recognize a change in a small collection of things. People can usually identify up to four objects without having to count each one individually. Beyond four, most people will have to rely on counting. To demonstrate this, show students an increasing number of objects that are alike either on sheets of paper or on an overhead projector. Number sense is something we are born with, but we get to learn how to count.^{1} ^{1}Dantzig, Tobias. Number: The Language of Science, The Macmillan Company, New York, 1930, p. 4. 
Contributed by Bruce White 
Reference: Dantzig, Tobias. Number: The Language of Science, The Macmillan Company, New York, 1930, 
Morra is a game that involves counting that has been played since ancient Egyptian times. It is still played throughout different parts of the world, especially in Europe and Northern Africa. The game is very simple and can be played by two or more players, but it is usually played by two. The players face each other, each holding up a closed fist. At a given signal, they both hold up as many fingers as they wish and at the same time announce a number from one to ten. If both hands are used, the number can range from one to twenty. A player scores a point if the number (s)he calls out is the total number of fingers shown by all players. This game can be used in class to help sharpen the students’ adding, observation, and reaction skills. 
Contributed by Bruce White 
Reference: Infrah, Georges. From One to Zero, A Universal History of Numbers, Viking Penguin, Inc., New York, 1985, pp. 6768. 
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Contributed by Steven Tuck

Source: Stroul, Mary and Susan Scheck. Mayas  Aztecs  Incas, Cooperative Learning Activities, Scholastic Professional Books, 1994. 
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Contributed by Jennifer Goodwin
