Week 10—[Further Factoring]

What I have learned:

  1. Perfect square trinomial
  2. More complex different of squares

Explain What I learned:

  1. (p+q)²=p²+2pq+q²
  2. (p-q)²=p²-2pq+q²
  3. Replace A by x² and B by 4y² to get (x²-4y²)(x²+4y²) which factors further to (x-2y)(x+2y)(x²+4y²)

Week 6—[ Surface Area and Volume]

What I have learned:

  1. Surface Area and Volume for cubes, cylinder, prisms, pyramids, cones, spheres

Explain What I learned:

  1. Cylinder: V=π r² h ;
  2. Cone: V=1/3(area of base)h ; S=πr²+πrs
  3. Square-Based Pyramid: V=1/3(area of base)h ; S=2bs+b²
  4. Sphere: V=4/3πr³ ; S=4πr² or πd²

Needs vs. Wants

Need- Wants

  • What it is.
  • How you felt when you got it.
  • When and how did you realize it was a want.
  • How do you feel about it now?


A t-shirts is from what i need to what i want. Because everyone need clothing, and when i have the basic clothes that i need,I began to want to have more different kinds of clothes. Because different kinds of clothes  would be possible for me to have a look is different every day.When I 15 years old I began to realize that wear is no a casual things, the clothes are started from “I need” to  “I want” in my life.

Week 11—[Variable and Intercept]

What I have learned:

  1. The dependent variable and The independent variable
  2. X- and Y- Intercepts of a Graph


Explain What I learned:

  1. The dependent variable: the function relation between the specific number with another (or several) will change the number of changes and changes, is call the dependent variable
  2. The independent variable: Independent variables is considered to be the cause of the dependent variable.
  3. Y = f (X). This type is expressed as Y is the dependent variable, X is the independent variable.
  4. X-intercept: Y-coordinate is 0.
  5. Y-intercept: X-Coordinate is 0.