Khan Academy
SAT Prep: Test 2 Section 9 Part 3
Carefully reading word problems is a skill that many students neglect due to time constraints or test anxiety, and Sal models how to do so in this video. Both algebra and geometry are featured in problems 10-12 of the practice SAT.
Khan Academy
SAT Prep: Test 2 Section 9 Part 2
Assisting students with test-taking strategies, especially easier ways to solve multiple choice problems, Sal solves problems 6-9 on page 488 of The Official SAT Study Guide. Skills such as adding angles and solving for integers are the...
Khan Academy
SAT Prep: Test 3 Section 2 Part 4
Finding perimeters and slopes is the focus of this video, which details ways to solve problems 15-17 on the practice SAT. Even students who are confident in their ability to pass the SAT would benefit from this additional review.
Khan Academy
SAT Prep: Test 2 Section 3 Part 2
Questions 5-8 on the practice SAT, which range from algebraic equations to geometry problems, are easy to understand after Sal works his math magic. Students who have a hard time transitioning between skills would benefit from a viewing...
Khan Academy
SAT Prep: Test 2 Section 3 Part 3
Covering geometry, linear equations, and mathematical patterns, Sal discusses problems 9-12 on the practice SAT. His easygoing manner and clever calculations will keep students' interest far longer than reviewing SAT questions from a...
Khan Academy
SAT Prep: Test 5 Section 3 Part 3
A ten minute time limit prevented Sal from finishing problem 8 in the last video, which he continues in this lesson. Problems 9-11 involve algebraic expressions and word problems.
Khan Academy
SAT Prep: Test 4 Section 2 Part 1
As all SAT-ready (and readying) students know, the problems on the SAT go from simple to more complicated. The same is true in this video, which begins another SAT review session on page 582 of The Official SAT Study Guide. Sal zips...
Khan Academy
SAT Prep: Test 3 Section 8 Part 3
Geometry and algebra are equally represented in this video, which covers problems 10-14 on the practice SAT. As always, Sal is the expert of quick, efficient ways to solve problems - especially helpful for students who have a difficulty...
Khan Academy
SAT Prep: Test 4 Section 2 Part 3
Continuing his theme of solving problems in a timely and correct manner, Sal teaches students that most problems on the SAT are designed to be solved in less than 30 seconds (though he does state that they are given over a minute for...
Khan Academy
SAT Prep: Test 5 Section 7 Part 2
Sal teaches the importance of careful reading and canceling out all possible units as he solves problems 6-9 on the practice SAT. Students who have a hard time deciphering word problems would benefit from this video. Sal's annotation and...
Khan Academy
SAT Prep: Test 1 Section 6 Part 5
Back with "more energy," Sal begins his explanation of problems 15-18 on page 412 of The Official SAT Study Guide. Problems include angles of equilateral triangles, rectangles, and graphing slopes.
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...
Khan Academy
Compound Inequalities, Linear Inequalities, Algebra I
After defining compound inequality problems as "just inequality problems that have more than one set of constraints," Sal goes on to solve several sample problems. Those who have a hard time with multi-step equations might find this...
Khan Academy
Solving Rational Equations
Sal shows viewers how to solve rational expressions in this video, which would be an excellent resource for your lecture (or review session) in an algebra class. Those who have a hard time with rational expressions and those who have...
Khan Academy
More Examples of Factoring by Grouping, Algebra I
Useful as a classroom resource, a computer lab assignment, or even a homework supplement, this video shows viewers some more techniques for factoring polynomials. Once they have mastered the art of factoring, the rest of algebra will...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 9)
Have your class work through exercises focused on number patterns with place value. Present each problem, allow your class to work through it, and then show them what Sal did to solve each problem. Every problem is completely explained...
Khan Academy
Equivalent Fractions, Fractions, Pre-Algebra
Khan Academy uses a word problem as the context for a problem in which an equivalent fraction must be determined. While Sal explains the process well, it may be confusing to some students. Teacher facilitation is recommended.
Khan Academy
Macrostates and Microstates, Thermodynamics, Physics
Sal introduces Macrostates and Microstates in this chemistry video. He shows students that pressure, temperature, and volume are considered to be in the Macrostates category. However, kinetic energy, force, and velocity are considered to...
Khan Academy
Photosynthesis
Obtain a basic understanding of photosynthesis at a chemical level. The steps involved are introduced and simplified, but they are still challenging to understand. I suggest using this resource to supplement a lecture. An overview is...
Khan Academy
Introduction to Cellular Respiration, Cellular Respiration, Biology
Salman Khan is very enthusiastic about the topic of cellular respiration! He provides an interesting presentation of the respiration process. Expect to learn about the basic stages of respiration, how it works in the human body, and the...
Khan Academy
Converting Fahrenheit to Celsius, Pre-Algebra
Sal teaches students how to convert a temperature in Fahrenheit to its equivalent temperature in Celsius. He is explicit and very clear, which is suitable for those needing additional assistance or exposure to a particular topic.
Khan Academy
Natural Selection and the Owl Butterfly
The lecturer describes how specific characteristics develop. In this case, he discusses eye marking. The impact of environmental factors significantly influences the likelihood of successful reproduction, as favorable genes are more...
Khan Academy
Introduction to Evolution and Natural Selection
The evidence for natural selection is presented as a random variation of a characteristic allowing a particular strain of organism to survive with a higher probability of successful reproduction. Population change over a short period is...
Khan Academy
Introduction to Heredity
Young scientists generally love to learn how certain traits can be explained by a direct combination of alleles from their parents. Here, they can examine how a phenotype is often expressed when one allele is recessive and the other is...