Function

What is function?

Do you know about function?

Before we learn more about it, let’s watch the video!

This video can help us about Function :)  

Link

Graph of function has own unique, such as :

a. Constant Function

Picture 1

b) Identity Function

Picture 2

c) Absolute-Value Function

Picture3

d) Linear Function

Picture 4

e) Quadratic Function

Picture 5

Picture6

Exponent Form

Exponent form have 2 types, they are Positive Exponent and Negative exponent. This is properties of Exponent Form :

Properties ofExponent Form

I have some videos consist of explanation about exponent form.

Let's see !

Exponent part 1

Exponent part 2

I have some problem for you, please to answer it!

a.    5²⁵ x 5⁴

b.    7²¹ x 7⁷

c.    3⁵ x 7⁵

d.   (2³)⁶

e.    ( 6 )²

7

My Experience as Teaching Assisstant

            I have done School Experience during two weeks. For second week, I should do team teaching with my team consist of Wia and I. Through My master teacher named Mr. Iswandi, we got chance to did team teaching in tenth grade is X-2 for two meetings. We taught about quadratic equation. 

Quadratic Equation Song

Quadratic Equation Song 2

We made the lesson plan based on RPP (Rencana Pelaksanaan Pembelajaran) and syllabus of the master teacher.

            At the first meeting, I felt nervous because it was the first time I taught in a real class. I felt afraid I could not deliver the materials as well. We combine models of instruction they are Direct Instruction and Guided Discovery. When we delivered materials, there were only a few students who pay attention. We have been reprimanded students who do not pay attention, they return attention, but after while they do not attention again. That is the difficulties when we teach. After delivered our materials, we asked them to do two stay and three stray and answered problems. We asked they wrote the answer on the flipchart. During to do it, we guided them for helped the problems. Because time had run out, they did not have time to do 2 stay 3 stray. Finally, we can do it the next meeting.

            The second meeting, we continued the next material. We have prepared the other strategies to implement our lesson plan. In that meeting, we prepared small games using PPT. They felt happy and when we interviewed three of students in X-2, they said that, “We are very happy with the way you teach, because Mr. Iswandi never given games like what you did”. I thought, the second meeting is better than before because I did not feel nervous. End of the class, we given post test for each two students. In that class was very noisy, probably because we did not make agreement before the class begun.

            Some of students always played mobile phone when we teach. I thought, probably because it was not real teacher who teach. But when Mr. Iswandi who teach the other class, students also played mobile phone. So, my team can not prohibit them. When we interviewed our master teacher about mobile phone, he said that he allows the students to use their mobile phone but after he given the material. But I thought, it is not effective because when he given the material, they played mobile phone. He has three learning methods, they are story telling, discuss, discovery but tucked into the things that are planting the moral character. He also allows students to teach during exams as long as not get caught. It is the rule of the teacher.

            Through this school experience I can learn how to make lesson plan that is characterized, and how manage the students. I thought the rule of class is important things, so if I become a teacher, I must make a rule with agreement of my students. The obstacle which I got in school experience is get attention from the students. I hope SSE’s lecturer can share how get attention from the students. J J J

Surd (Bentuk Akar)

Now, we will discuss abou Surd.

Operation of addition, substraction, and multiplication on Surd, can be done using the following properties :

link

To know more clearly about Surd, we can see the following video :

link

:)

Whether you think, mathematics is only substraction, addition, division, and multiplication?

Symbol of Mathematics

I don’t think so . . .

Symbol of mathematics is not only division, subtraction, addition, and multiplication.

Other mathematical symbols such as:

integral

alpa

pi

sigma

above are the various of other mathematical symbols

What is mathematics ?

        Most people said that Mathematics is all about numbers. Indeed can not be denied that Mathematics is related with numbers, but when examined more deeply, mathematics is not only related with numbers. Many people who complain that Mathematics was very difficult and only a person who really are experts to solve problems of Mathematics.

          It is only naturally, if there some people who said that. Why? Because of the primary school course, the children already implanted in their minds by his teacher that Mathematics is hard. So that children can think that Mathematics is hard, even though it still existed until adulthood. Unfortunately not only the teachers who make children think like that, but his/her own parents. Without realized they have made a child’s brain to think that Mathematics is hard.

what is mathematics?

          Since elementary school until high school, I just only got formula, formula, and formula of mathematics. It was very difficult for me, because it forced me to memorize all of the formulas given by the teacher. Until I knew that the formulas derived from the first concept. , After I found out, it makes me understand the origin and should not memorize formulas. I regret this, why since elementary school, children are not given the first concept, so that children do not feel abstract with all the existing formula.

Some people who did not understand what the benefits of mathematics itself. They found it a waste of time studied mathematics. While unknowingly in daily live have been put on the benefits of mathematics, such as when they sell or buy something in Swalayan, when they made dome of the mosque, and etc. for of all, we need Mathematics to do it.

For teachers are expected did not judge that Mathematics is difficult. Make the children self-confidence that Mathematics can they overcome without significantdifficulties. For good at Mathematics, do not have a brilliant brain, we just need to understand the concepts that connect with each other.