The word from the video which I had learned in English II lesson last week with Mr.Marsigit
1. Do you believe me
I believe in me. Do you believe in me? Do you believe there I am in here? That’s right. They do because here the real. I can do anything, be anything, and cry anything, become anything. Because of you believe me. Let’s me as your questions. Do you believe at my classmates? Do you believe that every single. You better because next week where also in up your school. One six tee seven hundred is over. And what we needs from you assembly that we carried or have… no marry where we came from. What it is? A way ever you be nice, because true know is same kazoos your...guides. You’re the wines to finders how weep a tiers. Who hound our hand? You’re the wine who loves when something if feels like a known else’s. To give my classmates. Do you believe and your calyxes? Do you? I hope so, because they can to your school because they want it make a different, too. Believe in there, swarthier and line on there when times gets off. We are know, we kits in sometimes my kit off. I am right? Can I get up? Can’t learn. All library, a teacher sixteen, and friend office. What you surf a milk and cappuccino, my foods. What your teachers or principle? We need you. Please believe in your calyxes and we believe in you. Do you believe in your self? Do you believe that what your doing shipping. Not it just, but that my children am I children student. It probably it way make a living, but I want to tell you a behavior all the students in dailies. We need you. We need you now want over believe in your self. Finally, do you believe that every child daily this is ready on the world place? Do you believe that daily for college students can be active; we need you ladies and gentleman. We need to know that what you doing in the most important jobs in this today. We need you to believe a nice in your calyxes, in your self. If you long believe. I want to thank you for what you do for me? And you help to me get today. Thank you…thank you… thanks you…
2. Do you know about math?
What you know about math …what you know about math…what you know about math…what you know about self math. Travel bag. What you know about math. I know all about math. Significant figure. Fourth five. Memories key. Trigonometry. Exponent line to declaim.
3. Trigonometry
Welcome to be presentation on basic of trigonometry. Trigonometry is from triangle and metry. Trigonometry’s story is right triangle. Relationship between the sides to the angles. So, let’s make a right triangle. The angles we call theta. The side of line is 3, 4 and 5 in the hypanus.
Sin theta equals?
For solve the problem on the school, for remember every times other the trick is:
Soh cah toa
It means that:
Soh: sin is opposite over hypannus
Cah: cos is adjust over hypannus
Tao: tan is opposite over adjust
So, sin theta equals 4 as opposite over 5 as hypannus
Cos theta equals adjust over hypannus. It means cos equals 3 as adjust over 5 as hypannus
Tan theta, is also use tao: tan theta equals 4 as opposite over 3 as adjust
Then, we call the other angle is x
So, tan x is also opposite over adjust, tan x equals 3 as opposite over 4 as adjust. It means that tan x is inverse of tan theta.
4. properties of logarithm
1. basically, if you have logarithm to the base b so the number be it’s call they base x. so log base b x equals y really the you logarithm.
2. if you have log base b ten x equals log x, log base e which e irrational number, log base e x equals ln x, its call natural logarithm .
Example:
log base ten one hundred is some number who called x. So, the base reason to the power and equals b reason y is equals x. so ten x to the power equals one hundred. Exponent of ten square equals one hundred. So, that means the value of x is two. So, log base ten one hundred is some number is two. Same ways, if we have log base two something number x equals tree. So, two the third power equals x. so, eight equals x. so, log base two eight equals tree.
Log base seven one over fourth nine equal x. whit same way
Seven to the x power equals one over fourth nine. We make a recognize the power of seven. Fourth nine equals seven square. And we remember the exponent. So, one over seven square is to be seven negative two to the power. So, the value of x is negative two.
If we have log base b M times N equals log base b M plus log base b N
Log base b M over N in bracket equals log base b M minus log base b N
Log base b x to be n equals n times log base b x
5. pre calculus
Will discussion about graph of a rational function. Can be discontinuities. why? Because the function has a polynomial in the denominator.
Example, if the function of f is equals x plus two equals x minus one. When x equals one so the function of f to be tree over zero and the zero as the denominator, its bad idea. Its break in function graph for example. The function of f equals x plus two over x minus one, then insert zero to the x so the function of one equals of two over negative one ore negative two. The graph is so far so good. Then insert one to the x. so the function of one is equals one plus two in bracket over one minus one in bracket with equals tree over zero that we know that is impossible, really bad. Now, rational function doesn’t always work with this way. Not all rational functions will give zero in denominator. In function of negative one equals one over negative one square plus one, never zero because of the positive one. Don’t forget rational functions denominator can be zero. For polynomial, smooth unbroken curve, rational function x to zero in the denominator. There is no value for the function, brake in the graph. Missing point, example: y equals x square minus x minus six in bracket over x minus tree in bracket. if we insert tree to the x, so the result is zero over zero. It not possible, not feasible and not allowed. It example for missing point syndrome zero over zero is factor top and bottom. Example y equals x square minus x minus six in bracket over x minus tree is equals x minus tree in bracket times x plus two in bracket over x minus tree in bracket, so it mean y equals x plus two. And it no problem if we insert tree to the x. Missing point is a loophole.
6. lets the function f be defined by f (x)=x+1
if 2 f(p) = 20, what is the value of f(3p)?
f(x)=x+1
2 f(p) = 20
f(p)=p+1=10
p=9
f(3p) is mean x=3p
so, x= 3 times 9
x= 27
so, f(3p)=27+1=28
if the xy coordinate plane the graph of x equals y square minus four intersect line at (0,p) and (5,t). What is the greatest possible value of the slope of graph.
My difficult word to express Mathematical idea
Part I (Print Storming)
- Intercept
- Proportional
- Sphere
- Tangent
- Point of tangency
- Chord
- Secant
- Inscribe angle
- Concentric
- Circumference
- Circular region
- Sector
- Set solve
- Equality
- Integer
- Lateral surface
- Boundaries
- Altitude
- Lateral edges
- Oblique cylinder
- Isosceles triangle
- Right angled triangle
- Squared
- Cubed
- Multiplied
- Divided
- Plane
- Whole number
- Addition
- Subtraction
- Number line
- Numerator
- Denominator
Part II ( meaning and application of my difficult word)
1. Two sphere or more are concentric if the both of them in a same center of sphere
- sphere = bola
- concentric = sepusat
2. A circle have radius of 5 cm, so the circumference of that circle 220/7 cm
- radius = jari-jari
- circumference = keliling
3. The solution of linear equality one variable only one problem solving. So, if there is a equality :
X + 5 = 6
<=> x = 1
So, the set solve that linear equality one variable is {1}
- equality = persamaan
- set solve = himpunan penyelesaian
4. Integers are the number of whole number and negative number
- integer = bilangan bulat
- whole number = bilangan cacah
5. Addition on integers can be interpreted as a directed distance
- Addition = penjumlahan
6. Subtraction operation on integers is to find out the difference between two integers. We can use a number line to indicate subtraction
- subtraction = pengurangan atau selisih
- number line = garis bilangan
7. The form of a/b where a and b are integers, a and b are not equal as with 0. a is called the numerator and b is called denominator
- numerator = pembilang
- denominator = penyebut
8. A isosceles triangle have two of same edges
- isosceles triangle = segitiga sama kaki
- edge = sisi
9. A cube have twelve of lateral edges
- lateral edge = rusuk
10. One of the angles of right angle triangle have 90
- right angle triangle = segitiga siku-siku
11. A tube with 7 cm of radius and 4 cm of altitude have 176 cm of lateral surface
- altitude = tinggi silinder
- lateral surface = luas selimut
What is mathematics and how to learn mathematic
A part of us was know what is a mathematic, but another hand a part of other us are don’t know what is mathematic. Basicly, mathematic can’t be far from our live, because in each our activitys, without conscious we always using mathematics to solving our problem, such as to know how square our land, how to build our haouse and etc. mathematics is very complete. The learn of mathematics such as Geometry, Calculus, Arithmetic, eventhough mathematics is also a pattern, communication, investigation and problem solving.
How mathematic can be pattern, communication, investigation and problem solving? Let’s we learn together about it. Firstly, mathematics is a pattern.. anything needs apattern to be better, mathematics is also, such as triangle, square, rofm, construction, structure needs a pattern to be usefull things. Second, mathematics is communication. From article was I read in Mr. Marsigit blog about “ Elegi Menggapai Hakekat Matematika ke Satu”, that the begining the mathematics is a phenomenon which at last the phenomenon can be communication for communicate to human. So, mathematics is communication, too. Third, mathematics is investigation. Mathematics also can used to investigation anything which happened in this world. And the last, mathematics is a problem solving. Each problem can solve with mathematics, such as how to know the square of our land, in bussiness is also use mathematic for account the surplus and many other. So mathematics is very complete. Anything can’t be far from mathematics, because basicly, mathematics be a basic for another knowledge.
Because now we study in mathematic education and we had hope to be a teacher, we must know how to learn our student afterwards. Before it, we also must know the basic character of our students generally. Firstly, basicly students needs motivation and spiri, even when our student be droping because there are many problem which to give audience them. We must know how oyr student have trusted to themselves again. Possible, we can aswered them about their problem and we be care them, and etc. Second, students is unique. Each student have different character to another students, because in this world is impossible that there are two child have identic character. So, we must patient to give audience our students when we learn them. Third, students have competence. Each student have competence and each student have a remainder and diminish, because no body perfect in this world. So, we don’t be angry if our students less in a lesson, possible in other lesson he/she lost. And the last, student os contexluality. As a social human, we can’t live alone. Our students are too. So, we must can help them if they have a problem.
So, we as a candidate of a profesional teacher of mathematic must always study how to give audience to our students and attitude to learn our students. Not only it, we also must know about mathematics generally and always surplus our knowledge about mathematic and how to learn our studen. May, we can be a profesional teacher of mathematic who not only learn mathematic, but also can become friend for our students. So we are be usefull teacher. Amien…
good evening Mr. Marsigit,,,
I was read your article about elegi pangakuan orang tua berambut putih,,,I like it...from your articles in this blog I more like this article because it make me have a will to know who am I more as the way of white hair old man to know him self in your article,,,,
I want to answer to you, how to know our self more obey your opinian, Mr. Marsigit?
the last,, I want to thank you to mr. marsigit for all your gift.