Surface Area Half Cylinders To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Trigonometry is an easy way to work out the unknown sides and angles of a right angled triangle. The trick - know the side names - the opposite, hypotenuse, and adjacent, and know how and when to apply the trigonomic functions - sin, cos and tan. This is the only trick to getting it right every time!
In this lesson, students learn work out unknown side lengths using use sine, cosine, and tangent. You will need a scientific calculator for the problems in this lesson - and I'll show you how to access one on your computer.

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How to work out spped distance and time calculations easily.
This shows an easy was to remember all the formulas so you'll be calculating velocity problems no problem!

How do you solve conditional probability examples?
What is the probability of an event A given that event B has occurred?
This is conditional probability, solved by the formula that P(A|B) which reads "probability of A given B" is equal to the P(A intersect B)/P(B).
Three examples are examined.


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Conditional Probability Formula: P(A|B) = P(A and B)/P(B)

The 3,4,5 triangle uses fairly simple math which can be used for all sorts of things. And yep it is Pythagoras but don't let that scare you...

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Long division is easy - really it is just short division but looks harder.
It involved several steps - there is no getting away from these - trust me I have searched fr a faster easier method!
Watch th is lesson and learn to divide by 2-digit numbers.

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If Teresa’s daughter is my daughter’s mother, what am I to Teresa?
This video looks at the answer to the Teresa's Daughter puzzle, as well as these similar ones...

A man is looking at a picture of a man on the wall and states,
“Brothers and sisters I have none, but this man’s father is my father’s son.”
Who is the man in the picture in relation to the man looking at the picture?

I am your mother’s brother’s only brother-in-law. Who am I?

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#mathproblems
#mathriddles
#mathsforfun

This tutorial looks at how to quickly and easily do long division using Vedic Math.
Learn to calculate long division as quickly as a calculator, without needing the guesswork often assosiated with standard long division.
This video is the third of four videos looking at this ingenious method.

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How to work out your income tax using the ATO tax table. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Learn to calculate faster than any calculator numbers close to 100 using vedic math. This is a great method of doing fast maths in your head. Using some multiplication, and some addition you too can be a genius!

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This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here!

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How fast can you add 1+2+3+4+5+6+7+8+9+10? In four seconds? What about all the numbers 1 to 100? This video shows a fast and easy math trick that will have you adding series of numbers so fast you will not believe it! This uses the ideas of averages, as you will see in the math trick lesson. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Do long division fast using Vedic Math.
Learn to calculate long division as quickly as a calculator, without needing the guesswork often assosiated with standard long division.
This video is the first of four videos looking at this ingenious method.

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Trigonometry is an easy way to work out the unknown sides and angles of a right angled triangle. The trick - know the side names - the opposite, hypotenuse, and adjacent, and know how and when to apply the trigonomic functions - sin, cos and tan. This is the only trick to getting it right every time!
In this lesson, students learn to label sides and angles in right triangles as well as when to use sine, cosine, and tangent. You will need a scientific calculator for the problems in this lesson - and I'll show you how to access one on your computer. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Area of circles - a math lesson that is fast and easy to understand. Math is awesome! To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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In this video we look at how to multiply binomial expressions with trinomial expressions instantly, as well as how to check our answer quickly for greater accuracy. In addition to this, we look at the application of multiplying trinomial with binomials to solve everyday math multiplication. This is an essential component of algebra. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Finding the square of a nmuber is easy - just follow these mental math tricks. You'll be able to calculate squares faster than ever and amaze everyone with your utter genius!

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#fastmathtricks
#mentalmath
#mathtrick

This math multiplication trick is easy to do, and can be used to directly multiply large numbers! Math is easy with the tecmath math method of multiplication (say that five times fast!)

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How are your adding fraction skills? Can you win this challenge?

This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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#fractions
#fraction
#fractionsmath

On this lesson, we will review the 4 types of slope of a line: positive slope, negative slope, zero slope, and undefined slope.

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This lesson answers the questions: What is slope? How do I find the slope of a function? What is a positive slope? What is a negative slope? What is a zero slope? What is an undefined slope?

Our lessons are perfect for flipped classroom math teachers and students. This lesson is aligned with the common core learning standards for math and the SAT math curriculum as well.

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