Hello, this is JjangJi Science.
Lately, school exams have kept me teaching all day.
Students would not go home until the early hours, so I kept helping them.
I am completely worn out and am giving everyone a week off.
Keeping lessons going steadily is not easy.
This time, I have uploaded some materials for each subject.
They were on the resources page of my old website; my current site is www.jjangji.com.
https://jjangji.org/%ec%9e%90%eb%a3%8c-%eb%b0%9b%ea%b8%b0/ ↗Hello, this is JjangJi Science. I am posting AP, IB, and SAT Chemistry materials, including past papers, free-response questions, and textbooks. Thank you.
www.jjangji.com
AP, SAT, and IB Chemistry past papers, textbooks, and other resources — JjangJi Edu Hello, this is JjangJi Science. I am posting AP, IB, and SAT Chemistry materials, including past papers, free-response questions, and textbooks. Thank you. www.jjangji.com ↗On that page…
click through the individual posts to find the materials.
However, IB Chemistry materials involve copyright restrictions, so I cannot simply distribute them freely.
At the time, you could leave an email address on the questions board and I could arrange access separately.
I have also gathered the testimonials in one place.
Teacher, I got 800!
Haha! I will buy you something. Thank you.
Haha, no! I am the one who should be thanking you.
I will buy you something delicious!
Haha, yes!
Good morning! Good news! I got a perfect score. Thank you. It is the 90th percentile, so the top 10%.
Yes!!! Thank you so much!
Thank you!
Teacher, my child got 800! Thank you. [The following lines are too small to read reliably.] Do you also teach SAT II Biology?
Yes! Thank you for taking the lessons. Let me buy you something delicious.
Yes!
The result screenshot and accompanying short messages are too small to read reliably in this composite. Please expand the original image.
I got a 7.
Oh! [The next messages are too small to read reliably.]
At 11.
You worked hard.
Thank you!
Teacher, thank you so much. My child got a 7 in Chemistry! It is all thanks to you. We will visit you after coming back to Korea. [Part of the message is too small to read reliably.]
Yes! [Part of the reply is too small to read reliably.] We will work hard together, as we always have. I think we will get good results in the future too.
It is thanks to all your guidance!
Thank you!
Teacher, my child got a 7! Thank you!
Haha, that is wonderful!!!
It is thanks to all your hard work teaching them.
Yes, thank you!!! I will keep working hard to help them do well on the remaining exams too.
The messages in these two small screenshots are too small to translate reliably. Please expand the original image.
Yes, please do that. I want them to take the exam and then study together again. How did the exam go?
Yes, my child does like Chemistry. [The rest is too small to read reliably.]
Yes, of course! We will work hard to get a good result. [The final message is cut off.]
View original messages
There were more, but I do not know where they all went. I seem to have lost them. Haha.
So I uploaded the ones collected over the last year or two. Quite a few students received good university offers and strong scores.
These include SAT Chemistry 800, IB Chemistry 7, AP Biology 5, and IGCSE A* results.
Strangely, I could not find the AP Chemistry 5 messages. They should be there, but I cannot see them.
I had not planned to build a website back then, so I did not keep them carefully. What a shame.
Hello. I wanted to ask you about the AP course.
Hello! Where do you live?
For AP Chemistry, go from Princeton to Barron’s questions and then past papers. That is enough to get close to a 5.
I live in Rockford, Illinois. I barely know the basics. I am taking an AP class, but it is so difficult.
Teacher, we hope to continue lessons at around 9 p.m., New York time, on Thursdays.
Please come at the usual time. Please also send the questions. I will find out whether Thursday’s class questions were difficult.
View original messages
I also receive individual inquiries from time to time.
Some people ask about lessons, and occasionally someone asks me to come to Seoul.
But I am not in Korea. Haha.
I offer Skype tutoring.
At the time of this post, the rate was US$50 for an individual and US$35 for a group student.
Skype lessons are usually 90 minutes. Honestly, two hours is tiring for me, so I rarely do that.
I can teach in person all day, but Skype tutoring is rather demanding.
Concentration drops sharply.
Sometimes students watch my screen without showing their own face.
I am sorry, but I do not teach under that arrangement.
I have put plenty of material on the JjangJi Science website.
It may not happen often, but if you have questions, you are welcome to use the message board.
JjangJi Science website ↗
I made a separate board for that.
I actually created it for one student in the US, but the rascal never asks anything. Haha.
This shows the proportion of visits by country. Many visitors are in Canada or the US.
The Vietnam visits are probably mostly mine. I advertise occasionally, but I doubt there are that many other visits, so I think my own visits are being counted.
I was surprised by the variety of locations: Bangladesh, Peru, Japan, and many others.
People must have found the site by chance somehow. It was fascinating.
How on earth did you find my website?
I advertise a little now, so people can find it that way, but visitors were arriving even before that, which amazed me.
Anyway, please download any materials you need.
Oh, and if you want lessons for an exam, tell me which exam you are preparing for,
and I can give you a diagnostic test. Knowing your current level is very helpful.
And since I am not in Korea, please do not ask whether I can teach at a particular place in Seoul. Haha.