Khan Academy
Khan Academy: 2010 Iit Jee Paper 1 Problem 50: Hyperbola Eccentricity
Sal works through an example of hyperbola eccentricity.
Khan Academy
Khan Academy: Basics of Chromatography
A video [9:15] explaining the basic principles of different kinds of chromatography: paper, thin layer, column, size-exclusion, ion exchange, affinity, and HPLC.
Khan Academy
Khan Academy: Balancing Redox Reactions in Base
A video [14:01] explaining how when balancing equations for redox reactions occurring in basic solution, it is often necessary to add ions to fully balance the equation. In this video, we'll walk through this process for the reaction in...
Khan Academy
Khan Academy: Balancing Chemical Equations
A video [5:03] showing how to balance a chemical reaction by making sure you have the same number of atoms of each element on both sides.
Khan Academy
Khan Academy: Balancing Another Combustion Reaction
A video [4:57] showing how to balance the combustion reaction of ethane.
Khan Academy
Khan Academy: Balancing More Complex Chemical Equations
A video [4:37] showing how balance more complicated reactions by of balancing the combustion reaction of ethylene.
Khan Academy
Khan Academy: Balancing Chemical Equation With Substitution
A video [4:11] showing how to use the substitution method to balance a reaction where a reactant and product have a polyatomic ion in common.
Khan Academy
Khan Academy: Strongly Supported Inferences Worked Example
Watch an LSAT test prep demonstration of one way to approach a question that asks "What is most strongly supported?"
Khan Academy
Khan Academy: Strongly Supported Inferences Video Lesson
Watch a demonstration of one way to approach a question that asks you to find a statement that is most strongly supported by the argument presented in a Logical Reasoning question on the LSAT. [6:07]
Khan Academy
Khan Academy: Strengthen Worked Example
Example video demonstrating one way to approach Strengthen questions.
Khan Academy
Khan Academy: Strengthen Video Lesson
Watch a demonstration of one way to approach a question that asks you to select a choice that would strengthen an argument on the Logical Reasoning section of the LSAT. [7:04]
Khan Academy
Khan Academy: Subject Verb Agreement Worked Example
David works through a subject-verb agreement question from the Praxis Core Writing test. [4:45]
Khan Academy
Khan Academy: Scatterplots Basic Example
Watch Sal work through a basic scatterplots problem.
Khan Academy
Khan Academy: Absolute and Relative Poverty
In this video created by Arshya Vahabzadeh. The student will learn about the differences between absolute and relative poverty.
Khan Academy
Khan Academy: Worked Example: Living in a Rational Society
This video example provides an example of an MCAT Question. The instructor provides reasoning for solving the question.
Khan Academy
Khan Academy: Key Features of Graphs Basic Example
Watch Sal work through a basic Key features of graphs problem.
Khan Academy
Khan Academy: Scatterplots Harder Example
Watch Sal work through a harder Scatterplots problem.
Khan Academy
Khan Academy: Table Data Harder Example
Watch Sal work through a harder Table data problem.
Khan Academy
Khan Academy: Table Data Basic Example
Watch Sal work through a basic Table data problem.
Khan Academy
Khan Academy: Linear and Exponential Growth Harder Example
Watch Sal work through a harder Linear and exponential growth problem.
Khan Academy
Khan Academy: Linear and Exponential Growth Basic Example
Watch Sal work through a basic Linear and exponential growth problem.
Khan Academy
Khan Academy: Within Sentence Punctuation Worked Example
David works through a within-sentence punctuation question from the Praxis Core Writing test. [4:06]
Khan Academy
Khan Academy: Ratios, Rates, and Proportions Harder Example
Watch Sal work through a harder ratios, rates, and proportions problem.