Launching into another practice session from The Official SAT Study Guide (page 855) Sal wastes no time in solving problems 1-6, which involve basic algebra and geometry. He encourages efficient problem solving, noting that on the first...

The beginning of a new set of SAT practice problems from The Official SAT Study Guide involves sequences, distribution, combinations, and geometric figures. Sal makes sure to provide thorough explanations to each problem, while...

Have a blast with Sal as he solves these SAT practice questions! He enjoys himself with visualization and combination problems, showing not only how to solve the problems but to see math as a riddle rather than a threat.

On the home stretch of this practice session, Sal completes problems 18 and 19 on page 738 of The Official SAT Study Guide. He begins problem 20, but chooses to finish it in the next video instead of rushing the answer. As always, Sal's...

The most valuable part of this video isn't math-related (even though the math strategies are quite helpful); it's the way Sal replaces part of a problem that confuses him with easy-to-manipulate variable letters. Students who get hung up...

Bringing the Khan Academy SAT video series to an end, Sal uses The Official SAT Study Guide to complete the final 16 problems (page 867). In this video, he solves problems 1-7 quickly and proficiently.

How many different ways can five people be arranged in any order in three chairs? Sal shows how combinations are different than permutations. He derives the formula for finding the combination without repetition.

And here I was thinking binomials were about algebra. The 15th installment of the Crash Course Statistics series focuses on the binomial distribution. It starts off with an example calculating the probability of getting shocked while...

How many different types of reactions can you name? After watching the video, your classes should be able to discuss five different types. The lesson explores the similarities and differences between combination, single replacement,...

We add numbers, so why not functions? A math video explains the process of combining functions using addition, subtraction, multiplication, and division. The instructor then finds the domain for each new function. 

Problem solving is the key to this quick video lesson. The tutor describes all the combinations he can have using five different consumable items. This is a good way to show how learners can make lists to solve numeric problems.

What is the Fundamental Counting Principle? Have you ever come across word problems that give you a bunch of options and you are asked to figure out the number of possible combinations? Well, if you know how to use the Fundamental...

There are properties of real numbers, properties of exponents, and yes, even properties of limits. By watching the video, viewers learn how to apply properties of limits to determine the limits of combinations of functions. The...

Upper level math doesn't have to be unapproachable. An instructional video uses virtual manipulatives to demonstrate the meaning of a permutation, a combination, and factorial.    

Video can be a powerful tool in the learning process. This one makes use of digital tools to help explain the concept of conditional probability applied to a lottery problem. 

Feel like a winner with an engaging video that shows the classic problem of calculating the odds of winning the lottery. Making use of digital tools, the author demonstrates ways to solve the problem numerically by using a...

The author of this video makes use of digital tools to show substitution into the permutation and combination formula. The differences between the meaning of permutations and combinations is also discussed.

Permutations are arrangements of distinct objects where ORDER MATTERS. Watch the following video for and explanation and examples. [4:24]

The Fundamental Counting Principle can be used to find permutations. This tutorial will walk you through the steps with an example of finding the number of ways to rearrange the letters in the word NUMBER. [4:25]

Video lesson solving for the probability of winning the mega millions jackpot. [5:29]

The last video in a three-part series on the Binomial Theorem from the Khan Academy. This segment illustrates how the Binomial Theorem is directly related to combinatorics using (a + b)^3 as an example. Students can clearly see how a...

A video that introduces the concept of combinations by building on knowledge of permutations. An arbitrary example is given and a formula for combinations is derived. This video also appears in the Probability strand. [10:11]

An instructional video that presents the Binomial Theorem as an application of combinations. The formula for the Binomial Theorem is given and one example is illustrated in step-by-step fashion. This is the first in a series of three...

Video introducing the concept of permutations by looking at examples and the formula.