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.
Beacon Learning Center
Beacon Learning Center: Who Will Probably Come to the Party?
Students use tree diagrams to find possible outcomes and make predictions for probability story problems.
Oswego City School District
Regents Exam Prep Center: Permutations and Combinations
A lesson, practice activity, and teacher resource for exploring permutations and combinations.
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.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Factorials, Permutations, and Combinations
Thirty-five problems cover the topics of combinations, permutations, and factorials in various settings. To review the basics on this topic, click "View Lesson" button.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Permutations and Combinations
Get independent practice working with permutations and combinations. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Alabama Learning Exchange
Alex: I Scream for Ice Cream!
In this activity, young scholars 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...
Scholastic
Scholastic: Math Maven's Mysteries: The Case of the Dastardly Disguiser
Famous jewels have been stolen from the Country Music Hall of Fame! The Dastardly Disguiser is a suspect, but we need to find out just how many disguise combinations he can use.
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...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Combinations
Find a quick, concise explanation of Combinations. Several examples are given and clearly explained.