Scholastic
Scholastic: Study Jams! Math: Probability: Combinations
An interactive presentation, followed by a quiz, on how to determine the number of possible combinations of items from two and three categories.
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...
Math Is Fun
Math Is Fun: Combinations and Permutations Calculator
By entering terms for how you want to combine items, you can use this calculator to determine all the different combinations and permutations you can have. For more advanced users, various rules are explained and how to use them.
Math Is Fun
Math Is Fun: Combinations and Permutations
Combinations and permutations are explained clearly, with lots of examples. Includes practice questions.
Math Planet
Math Planet: Combinations and Permutations
Gain an understanding of combinations and permutations by viewing an example and a video lesson. [1:15]
CK-12 Foundation
Ck 12: Probability: Combinations Grade 7
[Free Registration/Login may be required to access all resource tools.] Recognize and identify combinations.
Texas Instruments
Texas Instruments: Counting Principle, Combinations, and Permutations
Students will solve discrete math problems involving permutations, factorials, and combinations. Students are responsible for deciding which is appropriate to solve a given word problem.
Other
The Actuarial Foundation: Let's Go to the Mall! Explorations in Combinatorics
Let's Go to the Mall! is designed to help young scholars understand the connection between various kinds of combinations (multiplication principle and choose numbers) and permutations.
National Council of Teachers of Mathematics
Nctm: Illuminations: Bobbie Bear's Vacation Outfits
Help Bobbie Bear figure out how many outfits he could make with his shirts and pants. He can have up to 5 shirts and 4 pants. Figure out all the possible combinations.
Interactive Mathematics
Interactive Mathematics: Permutations
Permutations are used in several detailed examples to demonstrate the method for finding the number of arrangements of events.
PBS
Pbs: Jazz and Math: Improvisation Permutations
This lesson deals primarily with the number of rhythmic combinations that can be found in a four beat measure of music. Students will learn through trial and error and derive a mathematical formula to calculate the number of possible...
Khan Academy
Khan Academy: Combinations
This 4-problem quiz/practice using introductory combination problems like if you have 5 friends and can pick 2 of them to join you on a boat ride, how many different groups of friends could you take with you?
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Permutations, Factorials and Combinations
Thirty-one problems present a variety of practice working with permutations, factorials and combinations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the...
Other
Lake Tahoe Com. College: Permutations and Combinations
Gives a basic introduction to combinations and permutations, highlighting the ideas of counting using replacement versus without replacement, and when order is important versus when order is not important.
Texas Instruments
Texas Instruments: Probability and Fundamental Counting Principle
In these questions, students use the fundamental counting principle, combinations and permutations to determine the number of possible outcomes and the probability. Solutions and explanations are included.
CK-12 Foundation
Ck 12: Probability: Tree Diagrams Grades 10 12
[Free Registration/Login may be required to access all resource tools.] This lesson covers Tree Diagrams, combinations or permutations to determine the probabilities of multiple events and probability distributions.
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.
Texas Instruments
Texas Instruments: Numb3 Rs: Social Security Numbers
Based off of the hit television show NUMB3RS, this lesson is good practice for students who have already learned about permutations. U.S. Social Security Numbers are explained, and then students find the number of different SSNs which...
PBS
Pbs Learning Media: Lock Combinations of Knobs and Keys
In this Cyberchase video segment, Matt and Jackie must figure out which combination of knob and key will get them one step closer to retrieving the Black Crystal.
Interactive Mathematics
Interactive Mathematics: Combinations
The combination function is used to solve probability counting problems. Several examples are presented with detailed solutions.
PBS
Pbs Learning Media: Cyberchase: Force Field Combinations
In this Cyberchase video segment, the CyberSquad finds the right combination of switch, lever and button that will deactivate the force field protecting the stolen Black Crystal. [3:21]
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...
Texas Instruments
Texas Instruments: Let Us Count the Ways!
In this activity, students evaluate expressions using permutations and combinations of data elements on the calculator. They solve problems using these counting principles.
Alabama Learning Exchange
Alex: I Scream for Ice Cream!
In this lesson plan, learners will figure out how many different combinations of ice cream flavors and cones they can make. Students will work cooperatively to make the different combinations. They will use various materials to actually...