Access Point #: MAFS.912.S-CP.1.AP.2bArchived Access Point

Essential Understandings

Concrete:

• Use two different manipulatives (e.g., spinner, dice and coins) to demonstrate how events are generated (flipping a coin and rolling a die).
• Use pictures (e.g., picture of the coin, picture of die) to record two different events (results).
• Create a chart of all possible event combinations to determine the probability of a specific event.

• List the possible events (results) from two different manipulatives (e.g., die: 1, 2, 3, 4, 5, 6 coin: head, tail).
• Use the list of possible events to show how one event does not affect the other.
• Understand the concept of independent as two events that generate results without affecting each other.
• Represent the probability of each event using numbers. E.g., P(heads) = ½ is the probability of flipping a coin and getting heads; P(2) = 1/6 is the probability of rolling a die and getting a 2.
• Multiply the probability of two events together. E.g., P(heads) = 1/2, P(2) = 1/6; P(heads and 2) = 1/2 × 1/6 = 1/12 .