Instructional Video2:25
Curated Video

How to Find Compound Probability Using a Sample Space

9th - 12th
In this video, the teacher explains how to solve a standardized math test question involving compound probability. The question asks for the probability of getting a sum of 8 when rolling a number cube twice. The teacher uses a tree...
Instructional Video1:02
Curated Video

How to Divide by a Decimal

9th - 12th
In this short video we will answer a standardized math test question where we are asked to simplify an numerical expression by dividing by a decimal. We will set up long division and review how to move the decimal point. We will divide a...
Instructional Video1:45
Curated Video

Recognize a Simpler Expression

9th - 12th
In this short video we will answer a standardized math test question where we are given an algebraic expression that represents a real world situation. We are asked to recognize and identify which solution represents a simplified...
Instructional Video1:38
Curated Video

How to Convert Inches to Yards

9th - 12th
In this short video we will answer a standardized math test question where we are asked to convert inches to yards. We will use a conversion ratio and a proportion to convert inches to feet. We will use the Cross Product Property to...
Instructional Video0:57
Curated Video

How to Find Rate

9th - 12th
In this short video, we will solve a standardized test question about finding rate in miles per hour. We will learn that rate is a ratio. A ratio that is divided will become a unit rate or miles per one hour.
Instructional Video0:55
Curated Video

Understanding How to Multiply by a Negative Sign

9th - 12th
In this short video we will answer a standardized math test question where we are asked to simplify an integer expression involving a negative sign and an "invisible" one. We will first rewrite the expression to understand what we are...
Instructional Video0:58
Curated Video

How to Find the Midpoint

9th - 12th
This video provides a clear explanation on how to find the midpoint of a segment using the given coordinates of two points. The teacher walks through the steps and provides an example problem with a solution.
Instructional Video1:39
Curated Video

How to Find the Volume of Cubes

9th - 12th
In this short video we will answer a standardized math test question where we are asked to find the volume of a figure made up of cubes. We will break this down into a smaller problem and find the volume of one cube. We will then...
Instructional Video9:20
Professor Dave Explains

Organic Chemistry Practice Exam 1

12th - Higher Ed
Organic Chemistry Practice Exam 1
Instructional Video1:24
Curated Video

How to Analyze a Graph

9th - 12th
In this short math video we will answer a standardized math test question where we are asked to analyze a graph. We will first identify what the graph represents using the labels of the x and y axes. We will interpret a point on the...
Instructional Video8:38
Curated Video

Negative Exponents

9th - 12th
In this video lesson we will learn how to rewrite expressions with negative exponents. We will understand that a power with a negative exponent can be rewritten using the reciprocal and a positive exponent. We will make connections and...
Instructional Video1:01
Curated Video

How to Find a Missing Value Using Mean

9th - 12th
In this short video we will answer a standardized math test question where we are asked to find a missing value using the mean. We will write an equation representing the mean of 8 values. We are given the mean of the 8 values and asked...
Instructional Video0:59
Curated Video

Using Properties of Exponents

9th - 12th
In this short video we will answer a standardized math test question where we are asked to simplify an expression involving powers. We will review and use the Product of a Power Property. We will identify that the powers have the same...
Instructional Video1:35
Curated Video

How to Divide a Decimal by a Decimal

9th - 12th
In this short video we will answer a standardized math test question where we are asked to divide a decimal by a decimal. We will understand division to be dividend divided by the divisor and equals the quotient. We will review that the...
Instructional Video0:57
Curated Video

Finding Width Using the Area

9th - 12th
In this video, I teach how to find the width of a rectangular garden using its area and length. I provide a step-by-step guide on how to solve for the unknown variable and emphasize the importance of drawing a labeled picture. This is a...
Instructional Video2:09
Curated Video

How to Write an Algebraic Expression

9th - 12th
In this short video we will answer a standardized math test question where we are asked to identify the correct algebraic expression to represent a real world situation. We will identify key word phrases in the problem and represent them...
Instructional Video1:43
Curated Video

Determine the Solutions to an Inequality

9th - 12th
In this short video we will answer a standardized math test question where we are asked to identify values that are solutions of an inequality. We will evaluate the inequality using the numerical value answer choices until we have...
Instructional Video1:51
Curated Video

Interpret a Coordinate Value on a Real World Graph

9th - 12th
In this short math video we will answer a standardized math test question where we are asked to interpret a coordinate value on a real world graph. We will understand and interpret the meaning of the x and y axis. We will apply this to...
Instructional Video1:37
Curated Video

The Easy Way to Write a Number Phrase in Standard Form

9th - 12th
In this short video we will learn the easy way to write a number phrase in standard form as we answer a standardized math test question. We will begin by understanding that the word "and" represents the decimal point when a number is...
Instructional Video0:56
Curated Video

Approximate a Non-Perfect Cube Root

9th - 12th
In this short video we will answer a standardized math test question using cube roots. We will approximate a nonperfect cube root to the nearest integer by creating a number line of perfect cubes. We will identify which two perfect cubes...
Instructional Video2:44
Curated Video

How to Add Fractions with Unlike Denominators

9th - 12th
In this short math video we will learn how to add fractions with unlike denominators to solve a real world problem. We will identify the information given in the real world standardized test question. We will write an addition problem to...
Instructional Video1:08
Curated Video

How to Evaluate an Expression with an Exponent

9th - 12th
In this short video we will answer a standardized math test question where we are given the value of the variable in an expression and asked to evaluate. We will first review how to rewrite and interpret the algebraic expression...
Instructional Video1:51
Curated Video

Find Angles formed by Parallel Lines and a Transversal

9th - 12th
In this math test prep video, the teacher explains how to solve a standardized test question about parallel lines and a transversal. By identifying corresponding angles and using the fact that supplementary angles add up to 180 degrees,...
Instructional Video14:42
Curated Video

Special Systems of Linear Equations

9th - 12th
In this video, the teacher explains special systems of linear equations and how to identify the number of solutions and classify them without solving. The video covers the three types of solutions: one solution, no solution, and...