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How To: Find volume using rectangular solids in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on finding volume with the help of a few rectangular solids. Length times with times height is all you need to remember to get this stuff down.
How To: Factor using the ABC method in beginning algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra two-part lesson on factoring with the ABC method. Solve those darn quadratic equations!
How To: Factor numbers by grouping in beginning algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra three-part lesson on factoring numbers by grouping. This is the only math lesson where you'll learn how to cheat, so pay attention, but it's not what you think.
How To: Work with integer exponents in beginning algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra lesson on integer exponents. Don't get stuck in summer school, just watch and learn the math write here. Who needs a tutor, when you have the Internet? Watch these three videos.
How To: Graph linear equations in beginning algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra two-part lesson on graphing linear equations. This stuff is hard, yet it looks so simple, thanks to this video.
How To: Write the equation of a line in slope-intercept form
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this beginning-algebra lesson on writing lines in slope intercept form. M is the slope, and b is the y intercept.
How To: Add numbers on a number line in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on adding numbers on a number line. This is basic arithmetic here, so, if you want to get into algebra, start with the basics.
How To: Subtract negative numbers in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on subtracting negative numbers. Don't get confused with those minus symbols. Learn how to manage them correctly, and with ease.
How To: Find volume using rectangular prisms in pre-algebra
Lawrence Perez, from Saddleback College, and his assistant Charlie, give this pre-algebra lesson on finding the volume using rectangular prisms. You'll learn the formula for volume, and how to apply it. Get out your best pirate suit, and learn some math.
How To: Simplify a complex rational expression in algebra
Penelope, and eighth-grader, shows us how to simplify a complex rational expression in this algebraic problem. What better way to learn than from students still learning it, fresh in their heads?
How To: Find the surface area of a rectangular prism easily
These two math sixth-graders show us how to find the surface area of a rectangular prism. They used a tablet PC and the screen-capturing software, Camtasia Studio. If you always wanted to know how to calculate the area of a prism, then...
How To: Round a decimal up or down in math
If you haven't quite made it to school, or just can't afford it, maybe you had a family member killed by a mathematician, who knows, but whatever the reason, if you don't know how to round numbers and decimals, then this two-part video lesson is perfect for you.
How To: Add fractions in math using the LCD
For you non-educated folks out there, watch this to see how to add fractions using the least common denominator. Oh, you're a kid, well, why aren't you in school?
How To: Subtract fractions and mixed numbers
See how to subtract fractions. Turn those mixed numbers into improper fractions to solve. Improve your math skills!
How To: Measure geometry angles
Learn how to use a protractor when measuring math angles. An angle is formed by two rays with a common endpoint called the vertex. The most common unit used when measuring angles is the degree.
How To: Work with polygon geometry names
Watch this video to learn the important polygon names and how to classify different types of polygons.
How To: Solve Pythagorean Theorem proofs and geometry problems
In this math lesson we will investigate easy Pythagorean Theorem proofs and problems. The Pythagorean Theorem takes place in a right triangle. The longest side in a right triangle is called hypotenuse, and the other two sides are called legs. The hypotenuse opposes the right angle.
How To: Find the volume of pyramids in geometry
A pyramid is a three-dimensional figure with a polygonal base and a vertex. The base can be a triangle, quadrilateral, pentagon, hexagon, or other type of polygon.
How To: Work with tessellation shapes in geometry
Not all polygons are tessellation shapes. A tessellation is a collection of figures that can be put together to fill a plane surface without overlaps or gaps. I’m sure that you have already seen many tessellations in real life. The tiles in the kitchen and the puzzle you have solved are nothing but tessellations.
How To: Use algebra scientific notation and standard form
In this video we will learn about algebra SCIENTIFIC NOTATION and STANDARD FORM. Watch the above math video to learn how to change large numbers from standard form to scientific notation.
How To: Convert scientific notation to standard algebra form
Learn how to convert from scientific notation to standard form by watching the above math video. To change a number from scientific notation to standard form, move the decimal point to the left (if the exponent of ten is a negative number), or to the right (if the exponent is positive). You should move the point as many times as the exponent indicates. Do not write the power of ten anymore.
How To: Graph the algebra coordinate plane
Watch this algebra math coordinate plane video to learn about the four quadrants and other important concepts in the Cartesian plane.
How To: Find the Y intercept of a line in algebra
The steps for finding the y intercept of a line are explained in the above two math videos. Part 1 of 2 - How to Find the Y intercept of a line in algebra.
How To: Multiply decimals in math
This video is designed to help elementary and middle school teachers be more effective when teaching decimals. Here, algebra students can learn how to multiply decimals.
How To: Divide decimals in math
This video is designed to help elementary and middle school teachers be more effective when teaching decimals. This presents another short algebra word problem about dividing a whole number by a decimal.
How To: Solve a percent word math problem in algebra
A middle school has 1200 students. Of these, 25% are in the eighth grade. Yesterday, 95% of all eighth graders were present. How many eighth-grade students were absent yesterday?
How To: Solve a proportion word problem in algebra
In this math lesson we will learn how to solve a proportion word problem. Watch the video to learn how to set up a proportion, solve it, and interpret the answer.
How To: Add and subtract integers in algebra
When adding and subtracting integers, follow these math rules: Adding Integers
How To: Use the order of operations in algebra
Are you looking for a simple math explanation on order of operations? Remember the following sentence: “Please excuse my dear aunt Sally.” What does this sentence have to do with math? The first letter of each word stands for an operation. “P” stands for parenthesis, “E” for exponents, “M” for multiplication, “D” for division, “A” for addition, and “S” stands for subtraction.
How To: Solve two-step linear equations in algebra
This math lesson is designed to provide middle school teachers with free resources for teaching linear equations. Students can use this free resource to better understand how to solve simple equations while preparing for the upcoming CRCT test.
How To: Solve a linear equation word problem in algebra
This math lesson is designed to provide middle school teachers with free resources for teaching linear equations. Students can use this free resource to better understand how to solve simple equations while preparing for the upcoming CRCT test.
How To: Solve systems of equations in algebra
In this math lesson you will learn how to solve systems of equations. Systems of equations usually have 2 equations and two variables. You can solve a system of equations by using one of the following methods.
How To: Solve a system of equations in algebra
In this math lesson you will learn how to solve a system of equations. Watch the following video to learn how to translate a word problem into a system of linear equations.
How To: Solve inequalities with fractions in algebra
Solving math inequalities with fractions is easy when applying the rules presented in this video. • When you add or subtract the same number from each side of an inequality, the relationship between the two sides does not change.
How To: Graph linear equations in algebra easily
In this math lesson you will learn how to graph linear inequalities. Let’s graph the following inequality: 4x + y > 4
How To: Solve compound inequalities in algebra
In this math lesson, you will learn how to solve compound inequality problems. A compound inequality is a combination of two inequalities joined together by the words “and” or “or”.
How To: Solve square roots in algebra
In this lesson we will learn about one of the most important concepts in algebra SQUARE ROOTS. The square root of a number m is another number n that satisfies the following formula: m = n x n. You can also say that m is the square of n. The opposite of squaring a number is finding its square root. You can use the radical symbol to indicate that the square root of m is n:
How To: Simplify square roots in algebra
Watch the following video to understand the steps necessary when simplifying square roots. To simplify expressions with radicals, follow these simple steps:
How To: Calculate square roots of numbers by hand in algebra
In this math lesson, you will learn how to find the square root of a number without using a calculator. You can even find the square roots of large numbers by following this simple algorithm. The above video demonstrates how to find the square root by hand.
How To: Solve simple interest algebra problems
In this math lesson we will learn how to solve problems involving simple interest. When you deposit money in a savings account, the bank pays you interest at a certain rate called interest rate. There are two types of interest: simple interest and compound interest. In this lesson we will talk about simple interest. We will use the following important formula: