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Resources for Teaching and Learning About Probability and Statistics
Author: Hea-Jin Lee
As increased use of technology and the empirical sciences spreads throughout the global community, the use of data and graphs to communicate information is ever increasing. Daily decision making and discussions of social issues are increasingly influenced by statistics and projected outcomes based on estimated probabilities. Unfortunately, most high school graduates have little or no background in the mathematics associated with calculating probabilities and interpreting statistics. Therefore, in order for our students to be adequately prepared to make informed decisions, schools need to provide greater attention to probability and statistics in mathematics and other courses. Numerous educators (NCTM, 1989; NRC, 1989; Shaughnessy, 1992) have recommended the introduction of concepts related to probability and statistics throughout the school years for all students, not just those students bound for college.
In spite of increased support for teaching probability and statistics in schools, significant problems have been reported.
1. Absence of probability and statistics lessons or courses in schools. (Barnett, 1988; Shaughnessy, 1992): To date, very little probability and statistics have been taught in our schools.
2. Teachers are not prepared to teach probability and statistics. Historically, teacher preparation programs have not systematically included probability and statistics for prospective mathematics teachers (Shaughnessy, 1992).
3. Student misconceptions and understanding. Conditional probability and the notion of independent events are reported as particularly difficult concepts for students to grasp (Falk, 1988).
4. Student beliefs and attitudes. Statistics courses are some of the most rigorous and anxiety evoking for college students. Because of this, researchers have investigated techniques that may help to reduce anxiety and change negative attitudes experienced by students taking such courses (Sgoutas-Emch & Johnson, 1998).
Educators have been endeavoring to overcome the identified barriers to improving the teaching and learning of probability and statistics. Following are suggestions from researchers (Falk, 1988; Friel, 1998; Shaughnessy, 1992) who have studied the teaching and learning of concepts and applications of probability and statistics.
Regarding the school curriculum:
o Include a separate probability and statistics course in the main sequence of the mathematics courses.
o Promote increased awareness of the importance of probability and statistics in the curriculum.
o Confront students' and teachers' beliefs and concerns about probability and statistics.
o Teachers must first confront their own misconceptions before they can be prepared to help students overcome misconceptions.
o Teachers must become familiar with students' preexisting conceptions related to probability and statistics before they try to teach the concepts.
o Learning statistics in elementary and middle schools involves building both conceptual and procedural knowledge.
o Teachers must use real world examples to help students understand concepts.
o Hands-on materials must be used in teaching and learning probability and statistics.
o Computer use of simulations enables students to investigate more realistic situations than were previously possible. This strategy is strongly supported by numerous studies.
Following is a listing of Internet and print resources for teaching and learning about probability and statistics.
World Wide Web Resources
Probability Computer Projects with Mathematica
Provides interesting problems occurring in probability. This page includes "Monte Carlo Approximation of Pi", "The Mystery of the Three Cards", "The Birthday Problem", "The Gambling Boundary Problem", and others.
The Probability WEB
Contains a collection of pages with the following headings: Probability links, Abstracts, Listservers, Newsgroups, People, Jobs, Journals, Software, Books, Conferences, Publishers and Miscel-laneous.
Fun with Probability
Website for a cooperative classroom project for grades K-9. Students from five countries and 19 of the U. S. states participated in this project.
Three Door Puzzle
Includes a simulation of the "Three Door Puzzle" of probability. Students can play an interactive game as often as they wish.
Classroom materials for teachers and students
Provides unit course materials and lesson plans, problems and puzzles, and reference materials.
Software for Probability and Statistics
Contains publicly available software and online publishers for probability and statistics.
Internet project : Probability and Statistics
Provides fun and challenging activities for students.
Materials Introducing Activities for Probability and Statistics Lesson
Freda, A. (1998). Roll the dice-an introduction to probability. Mathematics Teaching in the Middle School, 4(2), pp. 85-89.
A dice game that introduces students to probability is described. Two students roll the dice simultaneously and find the absolute value of the differences of the numbers that they get. Students then present explanations of what they found from this game.
Ruggles, J. & Slenger, B.S. (1998). The "measure me" doll. Teaching Children Mathematics, 5(1), pp. 40-44.
A unit of work that engages Kinder-garten and first-grade students in making dolls to represent their birth statistics. The activities develop the children's emergent understanding of mathematics concepts.
Young, P. G. (1998). Probability, matrices, and bugs in trees. Teacher's guide and worksheets. Mathematics Teacher, 91(5), pp. 402-406.
Outlines activities that involve modeling the path of an insect between trees and determining the spread of the insect population in the trees. The activities involve the use of basic probability, simple random walks, matrices, and Markov chains.
Scavo, T. R. & Petraroja, B. (1998). Adventures in statistics. Teaching Children Mathematics, 4, pp. 394-400.
An activity on data analysis that engages fifth-grade students. The specific elements of the activity include a primary measurement task, data graphing, computation and interpre-tation of the average area, an analysis of area per student, and presentation of results.
Kader, G. & Perry, M. (1998). Push-penny: what is your expected score?. Mathematics Teaching in the Middle School, 3, pp. 370-377.
Outlines an activity that develops students' intuitive feeling for the consequences of randomness. In addition to having the central statistical principle, the law of large numbers, and probability distribution illustrated for students, this activity enables students to develop their data handling skills and their skills in constructing and using tables and graphs.
Greeley, N. & Offerman, T. R. (1998). Words, words, words; ancient communication. Mathematics Teaching in the Middle School, 3, pp. 358-364.
Three activities that are based on newspaper articles are outlined: "Frequencies", "Making the Words Fit", and "Check Out That Fog" activities. These activities can be given to students for independent study, and each involves analyzing newspaper articles for their clarity.
Perry, M. & Kader, G. (1998). Counting penguins. Mathematics Teacher, 91, pp. 110-116.
An activity based on counting penguins is outlined. It can be used to illustrate the nature of sampling variability, the effect of sample size on the quality of estimation, and the role of the underlying population distribution.
Robinson, P. (1997). Probability, mortality and life assurance. Mathematics in School, 26, pp. 42-45.
This activity involves generating expected values or probability values, and present values, as well as applying discount factors and using mortality tables.
Brunner, R. B. (1997). Numbers, please! The telephone directory and probability. Mathematics Teacher, 90, pp. 704-705.
This paper illustrates how students can use the telephone directory in collaborative group assignments in their introductory probability and statistics class to help them understand such concepts as Monte Carlo simulations.
Barnett, V. (1988). Statistical Consultancy-A basis for teaching and research. In R.Davidson, & J.Swift (Eds.)., The proceedings of the second International Conference on Teaching Statistics. Victoria B.C.: University of Victoria.
National Research Council (1989). Everybody Counts. Washington,D.C.: National Academy Press.
Falk, R. (1988). Conditional Probabilities: Insight and difficulties. In R. Davidson, & J.Swift (Eds.)., The proceedings of the second International Conference on Teaching Statistics. Victoria B.C.: University of Victoria.
Friel, S. N. (1998). Teaching statistics: What's average?. Yearbook (National Council of Teachers of Mathematics) v. 1998, pp. 208-217.
Jones, G. A., Langrall, C.W. & Thornton, C. A. (1997). A framework for assessing and nurturing young children's thinking in probability. Educational Studies in Mathematics, 32(2), pp. 101-125.
National Council of Teachers of Mathematics (1989). Curriculum and evaluation standards for school mathematics. Reston, VA: Author.
Sgoutas-Emch, S. A. & Johnson, C. J. (1998). Is journal writing an effective method of reducing anxiety towards statistics?. Journal of Instructional Psychology, 25, pp. 49-57.
Shaughnessy, J.M. (1992). Researches in probability and statistics: Reflections and Directions. In Grouws, D.A. (Ed.). Handbook of Research on Mathematics Teaching and Learning (pp.465-494). New York: Michigan Publishing Company.
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