Content Area: Math

 

Index: 4.4B Grade 7 CPI 1

 

Standard: 4.4 - Data Analysis, Probability, and Discrete Mathematics

 

Strand: B - Probability

 

Cumulative Progress Indicator: 1 - The student will interpret probabilities as ratios, percents, and decimals.

 

Grade: 7

 

Sample Activities:

 

·        The students are introduced to the game Pass The Pigs (Milton Bradley) where two small hardrubber pigs are rolled. Each pig can land on a side where there is a dot showing, a side where the dot does not show, on its hooves, on its back, leaning forward balancing itself on its snout, and balancing itself on its left foreleg, snout, and left ear. The students determine the fairness of the distribution of points on the sides of the pig by rolling the pig numerous times, recording the results, and using the ratios of successes for each, divided by the total number of rolls, to represent the probability of obtaining each situation.

 

·        Students examine uses of probability expressed as percentages in such situations as weather forecasting, risks in medical operations, and reporting the confidence interval of surveys.