Video 1 : do u believe in me
In this video, there is a student named Doultan. Who gives a speech in the thout of the thousand student and teachers the topic of his speech is about how we believe in ourself, to achieve something. The students should believe in their, and the teacher should believe in their students.
If u (teacher) believe in me (students), he or she can do anything, he can create, he can dream and he can become anything that they want. The teacher or the student it self. Should believe that they can graduate the class nath abd joint to the good colleges. The student not need to give up in the math class because they believe they can, no mather they come from.
The choldren can go to the good collage, they need to believe.
Video 2: What you know about math?

The second video tells me about” The materials which is discussing in mathematics”, there are:
o Significant figure
o Limit
o Exponent
o Trigonometry
o Integral
o Matrix
o Differential
o Phi

Video 3: English Solving Problem
The third video tells me about one example of mathematics problem. In this video shows the graph of y=g(x), if the function h is defined by f(x) equals x plus one ( f(x) = x + 1) If 2 times f(p) equals twenty ( 2f(p) = 20 ) . What is the value of f(3p)? this is one example of mathematics solving problem.

Video 4: properties of Logarithms
The fourth video tells me about properties of Logarithms, there are :
1. Log x to the base b equals y symmetry with b power y equal x

2. Log x to the base 10 equals Log x

3. Log x to the base natural numeral equals Ln x (this natural logarithm)
example: Log 100 to the base 10 equals x. What is the value of x?
answer: Log 100 to the base 10 equals x, become 10 to the power of x equals 100, so x equal 2.

Video 5: trigonometry
The word trigonometry comes from trigono and metry, trigono means triangle. It consist of three lines in the form of triangle with a teta in the front line.
It creates sin, cos and tan. It shortens write soh cah toa. It means sin teta is opposite over hyphotenus, cos is adcasent over hyphotenus, tangen is opposite over adcasent.
And the video also clarify to look for sin, cos, and tan. Example a right triangle with hypotenus 5, opposite 4, and adcasent 3. And with the formulas soh cah toa can solve sin equals 4 over 5, cos equals 3 over 5, and tan equals 4 over 3.
Video 6: Discussing the graph of a rational function
Graphs of rational function off limits f (x) equals x plus 2 over x minus 1..? It can have discontinues because has a polynomial in the denominator. There is of limit, where X is one. This is becomes one plus to over zero, then zero is non denominator. It breaks in function graph. Rational function don’t always work this away. Not all rational function will give zero in denomitor.
Y equals x squared minus x minus 6 over x minus 3. When y equals 3. This is becomes zero over zero it’s missing point syndrome, but not posible not allowed. And the typical example y equals x squared minus x minus 6 over x minus 3 equals y equals x minus 3 in bracket times x plus 2 in bracket over all x minus 3, and x minus 3 top cancel botton equals y equals x plus 2, when x equals 3 no problem.
Removable singgulary when x leads to zero over zero.