Reflection of Math Video

ANGLE

 Angle is two rays connected in same point.

First ray is initial ray, and the second ray is terminal ray.

Vertex is a parts on an angle that connects two rays.

Direction the terminal side goes in

-positive angle, if an angle is generated by a-counter clockwise rotation.
-negative angle, if an angle is generated by a clockwise rotation.

To measure an angle, need to know how far terminal side rotates from the initial side.
To measure amount of rotation for an angle, we use x,y graph

 
x-axis is positive on right side of y-axis and negative on other side.
y-axis is positive above x-axis and negative below it.
Angle getting bigger if counterclockwise.

Angle can be measured by two unit, the units are:

1. Radian
2. Degree

There are some angles that called special angle, the angles is:

0˚, 30˚, 45˚, 60˚, 90˚. It is important to memorize special angle.

refektion song and resume video

REFLECTION OF MATH SONG

1.    what you know about math

lyric:

what you know about math
what you know about math
what you know about math
hey, don't you know i represent math league when i add shorty subtract
freshman backpack where i holdin' all my work at
what you know about math
what you know about math
what you know about math
i know all about math
answer's 44 it's real easy cus it's sig figs
you got 45 your answers high you rounded too big
what you know about math
what you know about math
what you know about math
i know all about math
TI-80 silver edition know i'm shinin' dog
extra memory on the back to do my natural log
you know we multiply while memorizing pi
take limits to the sky be sure to simplify
graphing utility it's trigonomety 100 our Math B
don't you cheat off me
distance is rate times time
the sign graph ain't no line
exponential decline
but your score can't beat mine
we're memorizing rate for our math league states
against the math league greats
not gettin many dates
i got to find a mate but girls just playa hate and always make me wait
can't even integrate
don't you know i represent math league when i add shorty subtract
freshman backpack where i holdin' all my work at
what you know about math
what you know about math
what you know about math
i know all about math

my song

The cube (theme song of doraemon)

Let’s study about the cube

You can see in front of  you

It’s very easy to learn about the cube

The cube has six of sides

It has twelve of ribs

They have the same length

And it contain of six squares

Let’s learn volume formula

Come on you guess it

The volume formula is the ribs length power three

Let’s learn area formula

Who could know about it

Area formula is six multiply ribs length square

Interlude

Let’s remember the formulas of the cube

Hey my guys. Come on.

Nanana  remember the formulas of the cube

Mathematical Thinking (Shigeo Katagiri) n Stadium General

Name: Soleh uzain Class: Mathematic Education 2011 NIM : 11301241018 Mathematical Thinking (Shigeo Katagiri) 1.Mathematical Attitudes : a.Attempting to grasp one’s own problems or objectives or substance clearly, by oneself For example : At the TV screen, it was seen a monument of 10 cm high and 4 cm wide. If the real width of the monument is 10 m, what is the real height of the monument? (Mathematics 3 For Junior High School Year IX, Yudhistira, Page 35, number 5) b. Attempting to take logical actions For example : A six-sided dice was thrown 30 times. What is the expectation frequency of occurrences of the even spot side? (Mathematics 3 For Junior High School Year IX, Yudhistira, Page 122, number 2) c. Attempting to express matters clearly and succinctly For example : Mother buys a watermelon. The perimeter of the surrounding watermelon is 62.8cm. (the watermelon is assumed as sphere). The volume of the watermelon is… (Mathematics 3 For Junior High School Year IX, Yudhistira, Page 81, number 15) d. Attempting to seek better things For example : Find the sum of the first 15 terms of the series of 1+√3 + 3 + 3√3 + ....
(Mathematics 3 For Junior High School Year IX, Yudhistira, Page 209, number 3)

kisah inspiratif

Sepasang suami dan istri petani pulang kerumah setelah berbelanja. Ketika mereka membuka barang belanjaan, seekor tikus memperhatikan dengan seksama sambil menggumam."Hmmm...makanan apa lagi yang dibawa mereka dari pasar??" Ternyata, salah satu yang dibeli oleh petani ini adalah Perangkap Tikus. Sang tikus kaget bukan kepalang. Ia segera berlari menuju kandang dan berteriak Ia mendatangi ayam dan berteriak "Ada perangkap tikus" Sang Ayam berkata "Tuan Tikus..., Aku turut bersedih, tapi itu tidak berpengaruh terhadap diriku" Sang Tikus lalu pergi menemui seekor Kambing sambil berteriak. Lalu sang Kambing pun berkata "Aku turut bersimpati.. . tapi maaf, tidak ada yang bisa aku lakukan" Tikus lalu menemui Sapi. Ia mendapat jawaban sama. "Maafkan aku.

english task

Name : Soleh uzain NIM : 11301241018 1. Pentagonal ABCDE and pentagoanal FGHIJ are congruent, if EA= 2cm, determaint length of sides FG, GH, HI, IJ. And the perimeter of pentagonal FGHIJ. solution : the corresponding sides are AB coresponds with FG, BC coresponds with GH, CD coresponds with HI, DE coresponds with IJ , EA coresponds with Fj, because pentagonal ABCDE and pentagonal FGHIJ are congruent, so the length of AG = FJ 2 = 3x – 1 3 = 3x x = 1 now we know the value of x, and we put in the other line. The length of FG = 2x +1 = 2 + 1= 3 cm The length of GH= 2x -1 = 2 - 1= 1 cm The length of IJ = x = 1 cm The length of HI =√(4+1) = √5 So the perimeter of pentagonal FGHIJ are 2 + 3 + 1 +1+√5 = 7√5 cm Source :Mathemathics for junior high school year IX, exercise page 13 number 2   2. Show the couples of the triangle are congruent Solutions: The corespondens side are GH coresponds with JK, HI coresponds to KL, and IJ coresponds with LJ. The coresponding angle are ∠JKL corespondens to ∠GHI, ∠KLJ coresponds with ∠HIG, and ∠LJK coresponds to ∠IGH, Known that JK parallel with GH, the result ∠JKL = ∠GHI. And ∠KLJ = ∠GIH (Right angle) and in this picture show the length of LK = the length of IJ. So far we have been obtained : ∠JKL = ∠GHI ∠KLJ = ∠HIG KL = HI The three situations above fulfil the requirments (angle, angle, side) so that ∆JKL ≡ ∆GHI Source : Mathemathics for junior high school year IX, exercise page 25 number 1 3.