Content Area: Math

 

Index: 4.4B Grade 4 CPI 3

 

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

 

Strand: B - Probability

 

Cumulative Progress Indicator: 3 -  The student will predict probabilities in a variety of situations

·        What students think will happen (intuitive)

·        Collect data and use that data to predict the probability (experimental)

·        Analyze all possible outcomes to find the probability (theoretical)

 

Grade: 4

 

Sample Activities:

 

·        Each group of students receives a bag containing four colored beads. One group may be given 1 red, 1 black and 2 green beads; other groups may have the same four beads or different ones. Students take turns drawing a bead from the bag, recording its color, and replacing it in the bag. After 20 beads are drawn, each group makes a bar graph illustrating the number of beads drawn of each color. They make another bar graph illustrating the number of beads of each color actually in the bag, and compare the two bar graphs. As a follow-up activity, students should draw 20 or more times from a bag containing an unknown mixture of beads and try to guess, and justify, how many beads of each color are in the container.

 

Sample Assessment Questions:

 

·        Joanne has a bag of marbles that contains 5 blue marbles, 4 red marbles, 2 white marbles, and 1 yellow marble. If Joanne wants to pick a marble out of the bag without looking, what is the probability that she will pick a red or yellow marble?

o       A. 1/ 12 

o       B. 4/12

o       C. 5/12

o       D. 7/12  

 

The correct answer is C.