Koto – Performance Reflection

Last friday ( March 11th), we had a koto concert. We played the piece “Rokudan no shirabe(六段の調)”   that we were practicing for a long time.
Here is the video:

I  focused on “San dan (三段) ” which was personally hard for me because their was an Tremolo.I think I improved not getting lost in the piece. I used to get lost in the piece by making a mistake and rushing. Although in the performance, I made some mistakes but I was able to follow where the group were playing. The effective thing in my presentation was the press. I think my presses were clear and good. I think the Hikiiro went the best. I think the sound after the pull was very clear and beautiful.


I think I could have worked more on my practice logs.  Memorising the piece might helped me playing the piece smoothly. Next time I will make sure to memorise the piece.


I think the class did well on playing the piece.





English Presentation Reflection

In english class, we’re working on making a presentation based on the topic that was given. Me and my partners topic was ‘Freedom of speech’.

I think I did well on finding a image that is related to what I was talking about.

The thing I could improve was making the script clear and easier to understand.

Thank you for reading.

Koto Rokudan 3 Dan Improvement

In Japanese Music class, w were working on the piece “Rokudan”. I made 3 goals in my last blog post which were :

1. Being careful on when to release the press.
2. To practice every week at least 2 times.
3.  Work on my tremolo’s.

I tried being careful when to release the press and I think I am doing good.
I still need to be working on practicing 2 times every week.
I improved on my tremelo’s comparing to the last blog post.


Thank you for reading~~

Koto Arrangement Reflection

In Japanese music class, we were working on arranging a piano piece into a koto piece over few weeks.
The piece that I choose was ‘Minuet’.
The first step of the process arranging the piece was creating the tuning. To create a tuning based on the music score I printed out, I looked for the highest note and the lowest note. The highest note was  G and the lowest note was F#. There is 9 notes including G and F# up to G from F# , so starting with G as the 13th string tuning ‘ 巾’, the 12th string is F ,  11th string is E , and so on until the 5th string. For the 4 string that was left, I made a tuning for my left hand arrangement which is, E, D, C,B. Next, I wrote the music score for the koto arrangement by writing the string number of the note on a piece of paper.
I asked my friends if the arrangement that I made on my left hand was good, I asked Mr Patterson if the tuning works out and added more arrangement and improved on the tuning that I’ve made.
The challenges I faced was when I play the piece, it is easy to make a mistake because the strings has a big gap, for instance the string I played was 13 , and the next string was 6. It’s very hard to find the string quickly and to play it on rhythm. I over came these challenges by putting a little mark on the string of the koto I have in my house, and when I practice, I remember where the string I should play because I got used to it.


This is my arrangement,
Please enjoy!

DIY Program – Reflection

Hello, in drama class we were working on a DIY TV show with a partner. I was working with Sea. Our topic was DIY christmas decoration.

Here is the video:



We needed more time to prepare the things we needed. We realised that we need scissors to open the rapper of the fake snow in the middle of the TV program.
I think we did well on speaking clearly in a nice pace that people can understand what we were explaining and talking about.
We had more facts and tips in our script but we didn’t talk about it because we forgot.
If we could do it again, we make the script easier to read.

Thank you for reading.

Speech – Reflection

We did a speech in drama class. My topic was ‘Future’.

Here is the video:

I think my modulation was pretty good. I think I had pauses in good places through out the speech. I needed to improve on my volume because I think it was too small. My physicality was not very good. because I didn’t have facial expression except smiling when I made a mistake on what I said. I think I used my palm cards well. I didn’t look at it all the time, I just looked at it when I paused in some of the parts in my speech. The content I had, was pretty good. I think I had a good structure of sentences in my speech. I think I have to improve in my information in my speech because I just talked about my prediction and what will happen if my prediction were correct.

A speech by my class mate that was appealing to me was this:

I think she did very good on her modulation, physicality and content. Her volume, pauses and hand gesture made the speech very easy to understand. When she changed a idea, her pitch got higher to make us know that the idea is going to change.

Thank you for reading!



Materials in YIS Technology

We use iPads and computers in our school. It is necessary for our education but do you know what compounds and elements are used in our electric devices? Today I would like to talk about what compounds and minerals are used in a iPad and how it is causing problems.

Elements in iPads are Aluminium, Copper, Tungsten, Tin and Tantalum, which is a

Aluminium ( Al) :

Aluminium is used in the battery of an iPad. It is mostly mined in Australia, Brazil, Suriname, Jamaica.

Copper (Cu) :

Copper is used to protect memory card from loosing data. It is mined in Utah, Arizona, Michigan, Montana etc..


Tungsten is used for the iPad to vibrate. It is mined in Canada, China and Russia.


Tin is used in the circuit board in iPads or your computer. It is mined in Britain.


Tantalum is used to store electricity in iPad. It is mined in Australia, Brazil, Canada, Congo,Ethiopia and Rwanda.

Compounds used in technology are Metal, Glass, Plastic and Lithium


Metal is used for the data cable to stay together. It is mined in China, Australia and Brazil.


Glass is used in the screen of the iPad or computer.


Plastic is used in the home button of the iPad.

Lithium(Li) :

Lithium is used for iPad batteries.

Tungsten Mining

Tungsten mineral is very small and rarely produce more than 2000t ore per day. Tungsten ores has 1.5% of the WO3(tungsten).
Tungsten are usually mined underground. Tungsten ore gets crushed and milled to find the tungsten mineral crystal.


Armed group earns million of dollars per year by trading conflict minerals( Tungsten, Tin , Tantalum and gold which is all in our electronic devices). Government army and militaries fight and control the mines by murdering and raping civilians to destroy the structure of society.
Mining communities are forced to go in the illegal mining economy. Minerals are smuggled out through countries near Congo, and then getting shipped to smelters around the world for betterment. Once minerals gets shipped, it is very difficult to bring the mineral back to Congo. Conflict minerals are very easy to get over to U.S. and all over the world.


I didn’t even know much about conflict minerals until this unit, until I actually research what kind of horrible things are happening there. I think we have to make more people know about conflict minerals by adding a period of a short explanation about conflict minerals in schools to increase the number of people that want to help Congo by this problem.
Also, people can make small groups to tell people about conflict minerals, how can we stop it by making posters, websites, TV, news paper or magazines.


“Enough Project.” Enough. Center for American Progress, 2015. Web. 26 Nov. 2015. <http://www.enoughproject.org/>.
“Tungsten – an Indispensable Commodity.” Tungsten Mining. International Tungsten Industry Association, 2011. Web. 26 Nov. 2015. <http://www.itia.info/>.


“Mining.” Mining. Fairphone, 2015. Web. 27 Nov. 2015. <https://www.fairphone.com/>.


“Ptable.” Ptable. N.p., n.d. Web. 27 Nov. 2015. <http%3A%2F%2Fwww.ptable.com%2F>.