Curated OER
Level 1 Exponents
Both positive and negative numbers play a part in this video. Here, Sal explains the definition and function of exponents. Especially helpful for those with the tendency to multiply an integer by its exponent, this video offers several...
Khan Academy
Scientific Notation Examples, Pre-Algebra
This video contains additional scientific notation examples, continuing from the previous presentation. Viewers can see Sal work through several more problems using the techniques he has outlined throughout the pre-algebra video series.
Khan Academy
Introduction to Logarithm Properties (Part 2), Logarithms
Sal gets to the heart of this video, clarifying that it's important to understand math "so you can apply it later on and not have to relearn everything every time." True to his word, Sal demonstrates ways to solve logs and exponents more...
Khan Academy
Exponent Properties Involving Products, Numbers and Operations, 8th grade
After a short review of exponents, Sal incorporates exponent properties into his sample problems. This video is a great resource for those who need Sal's steady pace of instruction and the challenge of more complicated problems.
Khan Academy
SAT Prep: Test 5 Section 7 Part 3
The most helpful part of this video is at the very end, when Sal demonstrates how to solve a combinations problem incorrectly (after initially finding the correct answer). The trial-and-error strategy of solving multiple-choice math...
Khan Academy
SAT Prep: Test 5 Section 7 Part 6
Give your students the edge on their upcoming SAT with this video, which covers algebraic and linear equations. Math students who have a hard time transitioning between skills would benefit from seeing Sal do so.
Khan Academy
SAT Prep: Test 2 Section 6 Part 2
Reviewing the last problem from the previous video because he feels that he "rushed it," Sal again explains the concept of ratios as it applies to problem 6 on the practice SAT (page 472 in The Official SAT Study Guide). Additional...
Khan Academy
SAT Prep: Test 2 Section 3 Part 1
Page 459 of The Official SAT Study Guide by The College Board features another set of practice SAT math problems, beginning with problems 1-4. Sal demonstrates how to solve problems with factoring and visualization.
Curated OER
SAT Prep: Test 4 Section 4 Part 2
Problems 7-11, which involve both geometry and algebra problems, allow students to practice transitioning between skills. Sal takes time to explain the process of each problem so that students will understand the test strategies as well...
Khan Academy
Introduction to Logarithms
Sal crafts a demonstration around one of his "most misspelled words" - logarithms - in this thorough and understandable video. He defines a logarithm before using several examples to illustrate his point. Sal makes learning this concept...
Khan Academy
Introduction to Exponents, Pre-Algebra
This video involves both positive and negative numbers. Sal explains the definition and function of exponents. This video offers several examples, ranging from simple to more complex, which are especially helpful for those who multiply...
Khan Academy
SAT Prep: Test 6 Section 3 Part 2
Problems 5-7 start out with an algebraic equation involving exponents. Undaunted, Sal solves the problem easily, moving on to graphing questions and starting a problem with a geometric figure (which he continues in the next video).
Khan Academy
Exponent Properties Involving Quotients (Examples)
This video focuses on a series of problems involving exponent properties. Sal demonstrates rational expressions, simplifying fractions, and manipulating algebraic equations using exponents and division.
Khan Academy
SAT Prep: Test 3 Section 4 Part 2
Sal explains how helping his young cousins with their math skills inspired him to make this series of videos, so he can help a bunch of people pass the SAT. In this video, he covers exponents, quadratics, and parabolas in problems 5-9 on...
Khan Academy
SAT Prep: Test 7 Section 8 Part 1
A new set of SAT practice questions from the Official SAT Study Guide (page 803) greets Sal and the viewer. Problems 1-7 involve basic algebraic equations, linear equations, and geometric figures.
Khan Academy
SAT Prep: Test 3 Section 8 Part 2
Problems 7-9 involve exponents, inequalities, and geometric figures (diameter and radius), all of which Sal explores eagerly. After misreading one problem, he takes care to correct his mistake, showing students how important it is to...
Khan Academy
SAT Prep: Test 1 Section 3 Part 3
Sal demonstrates the methods needed to solve problems 8-10 in this video. He begins his lecture with a more thorough explanation of problem 7 (which he feels he "rushed" in the last video). These problems involve skills such as...
Khan Academy
Negative Exponent Intuition, Pre-Algebra
"Demystifying" an often mysterious problem, Sal demonstrates some tricks for considering exponents intuitively, rather than working them out each time. He first takes viewers through positive exponents and works up to negative exponents,...
Khan Academy
SAT Prep: Test 7 Section 2 Part 3
The problems are getting a little more difficult in this video, which covers problems 13-16 on page 778, but Sal is still easy to understand. He demonstrates various strategies for solving algebraic expressions and problems involving...
Khan Academy
SAT Prep: Test 7 Section 5 Part 4
Transitioning between algebra and geometry is no problem for Sal as he deftly solves these practice SAT problems. Mathematicians who have a hard time moving between skill sets will appreciate the way that Sal addresses each new problem...
Curated OER
What is the Formula for the nth Term in a Geometric Sequence?
What is the difference between an arithematic sequence and a geometric sequence? In an arithematic sequence the constant ratio is added, and in a geometric sequence the constant ratio is multiplied. Watch this video and learn how to use...
Curated OER
How Do You Convert a Number in Exponential Form into Expanded Form?
A quick lesson on how to write an exponential expression in expanded form. All you have to do is write out the base number the identified number of times as represented by the power.
Curated OER
How Do You Take a Monomial to a Power?
A monomial raised to a power needs to be multiplied. No problem. Use the product of a power rule and the power of a power rule too. Now all that needs to be done is to simplify the product.
Curated OER
Rewriting Negative Exponents
A penguin is as cute as can be and can also help demonstrate how to rewrite negative exponents. This clip is very clear and uses a story scenario to describe the actions that take place when multiplying or dividing with a negative exponent.