Kesebangunan

Arti kesebangunan

Benda-benda yang bentuknya sama, tetapi ukurannya tidak sama disebut bangun-bangun yang sebangun. Dua bangun datar dikatakan sebangun jika memenuhi dua syarat berikut.

a)      Panjang sisi-sisi yang bersesuaian mempunyai perbandingan yang senilai.

b)      Sudut-sudut yang bersesuaian sama besar.

Cntoh khidupan sehari hari

 a) Skala [peta]

Peta merupakan salah satu contoh kesebangunan karena benda tersebut  memiliki skala diperkecil.

                                                       

 b)bayangan

Bayangan merupakan contoh dari kongruen karena memiliki bentuk dan ukuran yang sama persis. Bayangan juga memiliki skala 1:1 sehingga d sebut sebagai kongruen.

                                                 

Kesebangunn siku-siku

Contoh soal

Ini adalah salah satu contoh soal kesebangunan. Teman saya (Fellingga) dan saya membuat berbagai macam segitiga siku-siku denganberbagai ukuran tetapi dengan rasio yang di sesuaikan. 

Sistem Koordinasi

Cara kerja otak dalam tubuh kita
Otak merupakan salah satu peran penting dalam tubuh kita. Riset telah membuktikan bahwa otak hanya bisa fokus dalam jangka waktu 10 menit. Otak juga tersusun secara berbeda, rangkaian hubungan syaraf-syaraf di otak manusia akan terus terbangun tapi disaat bersamaan ada juga dari rangkaian tersebut yang terputus.




Saraf Simpatik dan Parasimpatik
Cara kerja saraf parasimpatik adalah mengecilkan pupil, menstimulasi aliran ludah, memperlambat detak jantung, membesarkan bronkus, menstimulasi peristalsi dan sekresi, menstimulasi pelepasan bilus, mengerutkan kandung kemih. Sedangkan cara kerja saraf simpatik adalah membesarkan pupil, menghambat aliran ludah, mempercepat detak jantung, mengerutkan bronkus, menghambat pertalsi dan sekresi, menstimulasi perubahan glikogen dan glukosa, sekresi andrenalin dan nonandrenalin, menghambat kontraksi kandung kemih. Jadi dapat disimpulkan bahwa cara kerja saraf simpatik merupakan kebalikan dari cara kerja saraf parasimpatik.



Ini merupakan tabel sistem koordinasi yang saya buat:

Edutrip!

On may 17, the SMH JHS student were going to an edutrip to batam and singapore. It was soooo FUN! 1st day we went to batam by plane. Then we went to Balerang Bridge. The bridge was big. After that we went to Coastarina Beach. We play on the beach and enjoy the wind. We also get into the haunted house. SCARY! ><

2nd day, we went to Singapore by ferry. Than we went to Universal Studio. OMG! The place was SUPER COOL!! It’s like a real heaven. We play there for 6 hours and I’m not statisfied yet. But it was fun to ride the Transformers, The Mummy and others. Then we sleep at Asphodel Inn.

3rd day we went to RGS. The school, it was big and super complete. We make friends with the students there. They were pretty, smart and talented too.  Then we went back to Batam. At night we went to a big mall called Nagoya. It was near our hotel. J







4th day, the last day. We went to Nusa Beach. It was quite fun. Then we went back to Pekanbaru. Awwww I want to stay a bit longer. L

Activities Week

On May 14-16 2012, as ussual  our school held an event called “Activity Week 2012” Let’s check out the activities..

Science Day

The first day –May 14- We had Science day. In the morning we watch the grade 2 and 3 presentations, then our class -Garde8- went to the scince lab to explain the biotechnology project. My group was aminy, anand, and vivy, it’s about soya milk. At first we explain it well. They tried to taste the milk, some said it was tasty, some said too sweet, and some said it was not good. Their expressions are SO FUNNY! Then one of the teacher asked about our information that said soya milk has higher protein than breast milk. I can’t answer. I toght that we put out the wrong information. So sorry.. >< And we have some cooking demo with a piliphino chef. The spagethi was nice. :D

Angklung Festival

Still the same date, at night around 7pm. The PYP students perform some songs using angklung. At the end the parents were told to hald the angklung and play “Tanah Airku” on Sir Joseph’s direction. They’re having fun, some were laughing and shake the wrong angklung. Than the PYP students sing with the Parent’s angklung. MHSO also accompany the song. It was nice to have a cultural event like that!





Library Day

Second day, it was LIBRARY DAY!! The school was an absolute fantasy land! We were dressed like the characters in some books like spiderman, snow white, and etc. The teachers also, even one of the teacher dressed as pocong, so SCARY! ><  I also won the bookmark competition.. YAY! :D

Night of Music and Dances

Second night, we held a performance of art and music after school activity (ASA), including the MHSO of course. SLB student’s also perform on that night, it was touching. Maybe  they’re not perfect, but GOD gave them the talent of music that makes many parents amaze. :’)

International Day

The last day of activity week. There were so many performance from many different country like Canada, France, China, Australia, India, etc. Then we have lunch with foods from many different country. :D 

Math Graph Reflection

On math subject, we've learned how to graph. But this time we didn't graph a simple line, we graph CURVES! Well, it's hard I admit it. It needs more accuracy, a single mistake can effect the graph itself. And then we've tried it using computer software. It is much easier than doing it manually, believe me! ><

(-x^2)

Math Graphing

Now, I've already learned about how to make some graphs with computer and manually. Let's look at the difference, graphing with computer are so easy compare to manually. But I discovered that graphing manually gave me more experience. It develop our patience, knowing mistakes, and also learning for accuracy.

Photography Club

Today on photography club, we are asked to take some shots of spices. It was frustrating to take picture in a room. So as the result I got many blur photos. =,="
But some are good too, especially when Sir Joseph told us some tricks like how to have a good angle, experimenting on the white balance, and also flash too. Mrs.May is right, I appreciate it much after I transferred it to my laptop. Can't wait for the next meeting session.. POTRAIT! :D