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National Council of Teachers of Mathematics
The Math Forum: Drexel University: Boy or Girl?
Dr. Math explores the probability of the children in families being boys or girls. A look at the mathematics involved in each situation is included.
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Topic Summaries: Sets and Counting
The topic summary outlines sets and counting. Some topics reviewed are Venn diagrams, permutations, set operations, and addition principle. The resource consists of definitions, notes, and examples.
CK-12 Foundation
Ck 12: Probability: Combinations Grade 7
[Free Registration/Login may be required to access all resource tools.] Recognize and identify combinations.
ClassFlow
Class Flow: Fun With Probability
[Free Registration/Login Required] This flipchart focuses on 8th grade Probability. Through the use of interactive dice roller, magic viewer, and manipulation of objects, students can bring Probability to life!
CK-12 Foundation
Ck 12: Probability: Combinations Grades 9 10
[Free Registration/Login may be required to access all resource tools.] Given a set, learn how to calculate its number of combinations.
Interactive Mathematics
Interactive Mathematics: Combinations
The combination function is used to solve probability counting problems. Several examples are presented with detailed solutions.
National Council of Teachers of Mathematics
Nctm: Figure This: Combination Locks
If you're good with numbers, then here's a challenge just for you. See if you can figure out how many three number combinations you can make using numbers from 0 to 39. A probability challenge that explores number arrangements. Taken...
Illustrative Mathematics
Illustrative Mathematics: S Cp and Md: Return to Fred's Fun Factory (With $.50)
The task is intended to address standards regarding sample space, independence, probability distributions and permutations/combinations. Aligns with S-CP.A.1.
CK-12 Foundation
Ck 12: Analysis: Factorials and Combinations
[Free Registration/Login may be required to access all resource tools.] In this lesson students are provided a review of factorials and combinations. Students examine guided notes, review guided practice, watch instructional videos and...
Khan Academy
Khan Academy: Start Here! Counting
This lesson focuses on the math needed to solve problems counting. In the first lesson you learned that it was possible to build 1000 possible robots using only a handful of parts. Now suppose the director only asks for a cast of 6...
University of St. Andrews (UK)
University of St. Andrews: George Polya
This University of St. Andrews site offers a biography of George Polya. Many links are provided.
University of Victoria (Canada)
Amof: Amazing Mathematical Object Factory
The Amazing Mathematical Object Factory allows you to review many combinatorial objects by producing lists of mathematical objects. This game helps make discrete mathematics more accessible. Combinatorial objects are studied in discrete...
Purple Math
Purplemath: Factorials
A review of factorials in the areas of combinations, permutations, probability, and the Binomial Theorem is presented. Examples are worked out and explained, complete with graphing calculator steps.
Cut the Knot
Cut the Knot!: Interactive Mathematics: Geometry Articles, Theorems, Problems
Contains over five hundred Geometry articles, problems, puzzles, and games. Some sites relating to circles are provided within this list.
Wolfram Research
Wolfram Science World: Bernoulli, Jakob (1654 1705)
This site from ScienceWorld provides a brief but factual abstract of Bernoulli's math accomplishments. Links are provided throughout for additional information on related subjects.
McGraw Hill
Glencoe: Self Check Quizzes 2 Combinations
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of combinations. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It"...
Other
Lake Tahoe Com. College: Fundamental Counting Principle
Explains the fundamental principle of counting, which is the beginning point for any study of counting techniques such as combinations and permutations.
Khan Academy
Khan Academy: The Counting Principle
Practice counting possible outcomes in a variety of situations. These problems cover everything from counting the number of ways to get dressed in the morning to counting the number of ways to build a custom pizza. Students receive...
University of Cambridge
University of Cambridge: Maths and Sports: Arsenal Collection: Football Formations
How many different football team formations can you find? This activity provides an engaging real-life context to investigate simple combinations, and is aimed at Key Stage 3 students.
University of Cambridge
University of Cambridge: Maths and Sports: The Games' Medals
Who could have won the gold, silver and bronze medals? This activity is designed to be accessible to primary pupils at Key Stage 1.