This is the calculator video I never knew I needed omg 😯 you’re coming out with such great video ideas Harry, it’s great seeing what you’ll upload next! :-)
I own bunch of calculators. And I really enjoy using the fx-991ex even though I have more powerful calculators available. The fact that it's solar charged and that it doesn't need you to manage batteries is quite nice. The menus and buttons are also quite intuitive. Like even if you own a graphing calculator for under $20 I would still pick up an fx-991ex just to have as a backup.
thought i left this all behind when 2020 exams but somehow i'm here lol proud to say i own all three of the main ones ngl though (although the classwiz is always going to be my favourite - the graphical one just felt too fancy to use day to day hahah)
Thank you for the video, i am actually going into year 12 in September and wasn’t sure about which calculator i needed for alevel maths so this video was really helpful to me.
@@notdavemtb - I got the FX-99EX. My son told me that the one I had bought for him previously; FX83G was good enough and almost the same. The 99 in this case was the one to go for and easy to use.
me watching this when I brought the graphical calculator through amazon for 150 pounds..... (also i use the graphical ones and it helped me so much with marks in the calculator with check graphs and polynomials etc)
When it comes to buying a calculator, in my experience the key deciding factor is to ask your teacher “What calculator will you be using in class to demonstrate, when you demonstrate checking using a calculator ?” then buy that. Simple as that. In class you want to be learning the maths and following along, not trying to work out how to do on your calculator what the teacher just did on theirs, whilst they’ve moved on to the next topic. You want to only have to remember the key strokes for one calculator (the one you and the teacher use) not two (the one the teacher just demonstrated on and the one you have). For the same reason, if you can lobby the school authorities to standardise on one make and model of calculator for all maths and numerate science subjects and to try to get a bulk deal with a supplier. This is particularly good where you will be doing GCSE and A-Level at the same institution so the calculator you get might be a bit over powered for GCSE but you save on buying a new one for A-Level and having to learn a new set of key strokes to do the stuff that carries over from one to the other. It also means the institution can buy in bigger bulk and get a better deal. Better a calculator that will last you 4 years (something like the CG50 would probably see you through university as well, so that’s 7+ years) than have to keep buying new ones because you cheaped out on the first one. It is NEVER cheaper to try to save money by buying the minimum that will suffice. Also, spend the extra few quid on the stronger case, look after what you bought.
Our teacher in the 1st grade of high school (9th grade) just told us all to get the fx 991 ex so we would be ready for the "matura" exam at the end of 4th grade (12th grade) because that's the best calculator allowed in that examination. It is definitely a very awesome calculator gotta say.
Rules: your calculator must not carry out algebraic manipulation (Imagine 4(x+5) = 4x + 20 except your calculator did it for you) nor shall it be connected to the internet nor shall It be able to communicate with others (yes these calculator do exist) If you want to have the classwiz calculator experience, go into the internet and try to find an emulator of it.
i dont get it what do u mean 4x+20 do u mean finding the unknown? i can see probably not, so u mean changing the form? idk man the calculator interprets them just the same, i dont see how this gives u an advantage and like, no matter how u put it in, even a basic scientific calculator can solve for a variable
Special devices for special exams is just insane. Think about what you daily need, for everything else you take a computer, maybe an app for your smartphone. The only reason for any other decision is really "it's not allowed in school".
@@HarrySurplus Is the TI-36X Pro calculator allowed for the new A level maths and further maths, or is only the TI- 30X pro calculator allowed for A level maths and further maths? As I have not got the casio fx981EX calculator as of yet due to the recent Corona virus pandemic and lockdown restrictions but as my older brother has kindly let me borrow his Texas Instruments calculators he used I was therefore wondering if you could possibly have any advice thanks, Tom.
Thanks you so much ! for making this video absolutely loved it. I had a question is the graphing calculator mentioned in the video is allowed in A levels for Cambridge International Exams?.
how about CAS? (that the most expensive Texas-Instruments & HP Calculators have got) Which is: The school-serious & important "high-end feature", to solve equations! ... Is there an app/program for this?
Do the better calculators such as the graphical calculator and A-level calculator work with the basic equations you will most likely be doing in the basic scientific calculator? Or do you have to get separate calculators depending on which topic you’re doing?
I have no say I never needed the Integration or Differentiation Feature in the University at all. Since whenever you do this, the teachers wants to see how you did it and you are forced to do it symbolically by Hand and no approved calculator can do this. But nethertheless the Fx991DE X is still One of the best approved calculators and I used it For the whole Bachelor and Master.
i got a graphing calculator on discount from my school and i'm starting the a level in september (it was their reccomendation to get one of the graphics ones instead)
Can you use Texas Instruments calculator for A Level such as the TI-36X Pro calculator or is Casio calculators the only brand of calculators that is recommended such as the Casio FX-991EX Classwiz calculator??? Why I ask is that my grandparents bought for me the Texas Instruments calculator rather than the Casio.
Are graphical calculators allowed in international A level maths exam? I have P1, P2, P3, P4, S1 and M1. Will I be allowed with the graphical calculator in the actual exam hall.
Open university 1st year math, bans the Casio 991 in exams because of the SOLVE function. Just an fyi. I thought I would be ok but apparently not.. great presentation thanks.
does the graphical calculator miss some features that are from the classwiz one or not? so it basically has the exact same features as the classwiz but with the added graph mode?
Hi, do you think they would allow Casio CG50 for GCSE exams? So it would only cost us once, instead of buying two calculators for different exams (AS/A Level
Hello Harry, for the classwiz calculator, when I press the MENU/SETUP button I only get the first 3 modes, I've tried reset then setup data, it didn't work, what else should I do???
man wat the hell yall need graphic calculator for literally went through engineering math with a freakin ms570, complex and fourier analysis? went through whole vector thing with electromagnetism too... yeah... and like, the university doesnt care, and doesnt allow anything better either been using same one since highschool graphing calculator is not a thing here in this country probably a uk thing
Anyone who knows how to get a ti 108? They are missing.. the only ones are priced like 25 40 50 €. I found some, but completely unsure about the generation, and they are all with crazy shipping costs. I have oredered from foreign countries yet, and neve had to pay 20 € of taxes... thanks to all.
Hi love your videos. So I start year 12 in September and I am taking Maths Physics Product Design and Further Maths. I do the entire maths a level in year 12 with the exam and the further maths in year 13. If you obtain below an A in maths , you have to drop further. With me wanting to go to Imperial, which require an A* in maths , how hard is the workload to get an A or A star in maths in one year. And what tips could you give me. Thanks!!!
Thank you so much for watching!😌 I did Maths & Further Maths the same as you’re describing. I managed to get an A in on year! It is hard & there is a lot of work because your fitting everything into one year. All I can say is, keep up with your work and finish any homework as soon as possible. Ask questions in class as soon as there is something you don’t understand. Focus on the topics you finder harder so that you have enough time to perfect them! And use your teachers!! They are there to help you so don’t be afraid of going to them at lunch/study breaks as they will be more than happy to help! But also enjoy the maths because that will give you motivation to study!! Hope that helps & best of luck!☺️
Dear Sir, All my math I did, and still doing, on a FX-82: even on the University....... Intergration, Differantial Equation solving, Matrix calculus, Vector calculus, lineair Regression and so on.... The FX-82 (the one you refussed for A-level math) is a Buldozer for calculation... With a little sealend the will work in the Shower or in a swimmingpool. The battery-life is longer then 7 years..... my students are throwing with them and they still work. Indeed, with a "Sinus-race" they are not the fastest ones ! The price in 2022/23 is below 10 euro's...... SO whats the adventage of a Gr.Calculator, or Math-sofware?? Yours......
Im a cheap skate so can I get away with just the 991ex calculator for both a level maths and further maths? I don’t want to be at much of a disadvantage in the exam, but I’m not even sure if I’m going to go ahead with further maths, as I only start it in year 13
PLEASE ANYONE HELP! I have had the fx-991 PLUS(the gray calculator) for the past 5 years and it was good, but I started my degree last year, and I want to buy graphic one at the cost of 70$ top! Please help. I want calculator that can solve(like mine) quadratic equations(Mode 5-3). Also, I want calculator that can draw graphs for example: y=4x+2 or y^2=2x-4. Furthermore, I want a calculator that can integrate and differentiate(if there is one) PLEASE HELP! THANKS IN ADVANCE!
Idk what I’m doing here, I’m doing Politics, Classics & Drama for A Level 😭😭 a boy in my drama class got a really cool calculator for A Level though that’s kinda why I’m here
The fx-CG50 is really poor quality, screen dreadful it’s colour is washed out looking and red looks pinkish and you end up jumping around all over the dam place to do anything worthwhile, going from app to app, to switch from hex bin to floating point calculations And multiple and division it uses children x symbol we’re one would expect to use • or * as well as / for division HP Prime a far superior calculator, easy to type in programs and PPL quite powerful as well as able to graph do base calculation in hex bin and floating point all in one place without jumping all over the place in different apps like the CASIO, on the prime you get to stay in one place and do it all
Childish editing for a video that is supposed to be serious and informative. I assume that mostly high school/college students will be watching this - they are not children.
@mrmogelost6720 S O U R - P U S ?!!#??!! I am a 74-yr-old Mechatronic Engineer, having studied in a number of Colleges and Universities throughout Scotland and England. I have used various Casio and HP calculators, the most powerful and enjoyable being HP48GX. I, personally, found this young man's presentation and style to be very well rounded and informative. It's great to see such enthusiasm and desire to pass on knowledge and experience to others.
![Calculator Tips & Tricks for A-Level Maths/Further Maths ➕➖➗✖️ [fx-CG50 Graphics, fx-991EX Classwiz]](/img/n.gif)
Thank you so much ! I’m just about to buy mine for A level . Have a great rest of summer !
Thank you! You too!
Ti-84 gang
@@Blobber.t fr, Ti-84 Plus CE
This is the calculator video I never knew I needed omg 😯 you’re coming out with such great video ideas Harry, it’s great seeing what you’ll upload next! :-)
Thanks Savannah! Now you have all the knowledge of calculators haha! ☺️
I own bunch of calculators. And I really enjoy using the fx-991ex even though I have more powerful calculators available. The fact that it's solar charged and that it doesn't need you to manage batteries is quite nice. The menus and buttons are also quite intuitive. Like even if you own a graphing calculator for under $20 I would still pick up an fx-991ex just to have as a backup.
I bought this but was told it needs a ‘distribution’ button?
thought i left this all behind when 2020 exams but somehow i'm here lol
proud to say i own all three of the main ones ngl though (although the classwiz is always going to be my favourite - the graphical one just felt too fancy to use day to day hahah)
proud calculator owner
Thank you for the video, i am actually going into year 12 in September and wasn’t sure about which calculator i needed for alevel maths so this video was really helpful to me.
Glad it was helpful! Best of luck for year 12 🥳
Well done young man. Your video helped me choose a calculator for my son going for his GCSE.
Did you go for the 991ex
@@notdavemtb - I got the FX-99EX. My son told me that the one I had bought for him previously; FX83G was good enough and almost the same. The 99 in this case was the one to go for and easy to use.
We were never allowed to have calculators but the graphical one is so good! I wish I could plot y=xsin(1/X) and
y^2+x^4=x^2
I know am dumb but what does this mean "y^2+x^4=x^2"
@@barbrose4987 y Squared + x to the power of 4 = x Squared
unfortunately it can only do y= or such inequalities, or x=
Why those 2 graphs specifically lol
@@nosir1479 the funny thing is, he actually could plot it if he just used his brain😭😭
Awesome, saved £21 on the Amazon price thanks to you!!
Glad I could help!
me watching this when I brought the graphical calculator through amazon for 150 pounds..... (also i use the graphical ones and it helped me so much with marks in the calculator with check graphs and polynomials etc)
haha whoops & yes it definitely helps with checking in the exam! 😌
Same I feel scammed 😅
@@mustafaomar165 my school sold the graphical ones for £50 lol
@@tahmidali6534 damn
@@mustafaomar165 you can download extra games onto the calculator btw lol for example ive got a gameboy emulator on mine plus a bunch more
When it comes to buying a calculator, in my experience the key deciding factor is to ask your teacher “What calculator will you be using in class to demonstrate, when you demonstrate checking using a calculator ?” then buy that. Simple as that. In class you want to be learning the maths and following along, not trying to work out how to do on your calculator what the teacher just did on theirs, whilst they’ve moved on to the next topic. You want to only have to remember the key strokes for one calculator (the one you and the teacher use) not two (the one the teacher just demonstrated on and the one you have).
For the same reason, if you can lobby the school authorities to standardise on one make and model of calculator for all maths and numerate science subjects and to try to get a bulk deal with a supplier. This is particularly good where you will be doing GCSE and A-Level at the same institution so the calculator you get might be a bit over powered for GCSE but you save on buying a new one for A-Level and having to learn a new set of key strokes to do the stuff that carries over from one to the other. It also means the institution can buy in bigger bulk and get a better deal. Better a calculator that will last you 4 years (something like the CG50 would probably see you through university as well, so that’s 7+ years) than have to keep buying new ones because you cheaped out on the first one. It is NEVER cheaper to try to save money by buying the minimum that will suffice. Also, spend the extra few quid on the stronger case, look after what you bought.
Our teacher in the 1st grade of high school (9th grade) just told us all to get the fx 991 ex so we would be ready for the "matura" exam at the end of 4th grade (12th grade) because that's the best calculator allowed in that examination. It is definitely a very awesome calculator gotta say.
My dad bought me that fancy one because I passed my gcses and I'm doing maths and further maths at a level ❤😭
i love the thumbnail!
Rules: your calculator must not carry out algebraic manipulation (Imagine 4(x+5) = 4x + 20 except your calculator did it for you) nor shall it be connected to the internet nor shall It be able to communicate with others (yes these calculator do exist)
If you want to have the classwiz calculator experience, go into the internet and try to find an emulator of it.
i dont get it
what do u mean 4x+20
do u mean finding the unknown? i can see probably not, so u mean changing the form? idk man the calculator interprets them just the same, i dont see how this gives u an advantage
and like, no matter how u put it in, even a basic scientific calculator can solve for a variable
I bought fx-991 and using for my A level maths. Would you suggest to buy cg50?
Special devices for special exams is just insane. Think about what you daily need, for everything else you take a computer, maybe an app for your smartphone.
The only reason for any other decision is really "it's not allowed in school".
Great choices,
I have the classwiz as my main (regular) Calc and the HP prime as my CAS one
HP Prime is the best calculator!
Very useful video. Gave me the insight I needed for a new calculator, in university.
In my country everyone uses the first calculator😂. We calculate differentiation,integration and statistics manually
Thanks Harry this was really useful, I'm almost persuaded to get the graphical calculator. Can it draw graphs in polar and parametric form?
Yes it does!
@@HarrySurplus Is the TI-36X Pro calculator allowed for the new A level maths and further maths, or is only the TI- 30X pro calculator allowed for A level maths and further maths? As I have not got the casio fx981EX calculator as of yet due to the recent Corona virus pandemic and lockdown restrictions but as my older brother has kindly let me borrow his Texas Instruments calculators he used I was therefore wondering if you could possibly have any advice thanks, Tom.
Thanks you so much ! for making this video absolutely loved it. I had a question is the graphing calculator mentioned in the video is allowed in A levels for Cambridge International Exams?.
Thank you! Have a look on google as I’m not too sure
how about CAS?
(that the most expensive Texas-Instruments & HP Calculators have got)
Which is:
The school-serious & important "high-end feature", to solve equations! ...
Is there an app/program for this?
@Harry Surplus ...Bro please reply....Dude are we allowed to use the Casio CG-50 in INTERNATIONAL A levels?
Do the better calculators such as the graphical calculator and A-level calculator work with the basic equations you will most likely be doing in the basic scientific calculator? Or do you have to get separate calculators depending on which topic you’re doing?
yes they work with basic calculations! there are different modes you can put the calc in
@@HarrySurplus oh ok thank you
Yes, you use the calc for “checking” your work.
I have no say I never needed the Integration or Differentiation Feature in the University at all. Since whenever you do this, the teachers wants to see how you did it and you are forced to do it symbolically by Hand and no approved calculator can do this. But nethertheless the Fx991DE X is still One of the best approved calculators and I used it For the whole Bachelor and Master.
Thanks alot bro, I was struggling with a Sharp😤. This was great help.👍🏻👊🏻
so useful, thank you!
I am attempting A level further maths this year my teacher told graphical calculator aren't allowed anymore is that true.
i got a graphing calculator on discount from my school and i'm starting the a level in september (it was their reccomendation to get one of the graphics ones instead)
Can you use Texas Instruments calculator for A Level such as the TI-36X Pro calculator or is Casio calculators the only brand of calculators that is recommended such as the Casio FX-991EX Classwiz calculator??? Why I ask is that my grandparents bought for me the Texas Instruments calculator rather than the Casio.
Very nice video mate! You're so good at communicating
Thank you!
You’re a Wizard Harry! (Sorry- couldn’t resist). Good video. Cool accent.
SHARP EL-W516T and CASIO FX991EX are best calculators under 30€ .
Are graphical calculators allowed in international A level maths exam?
I have P1, P2, P3, P4, S1 and M1.
Will I be allowed with the graphical calculator in the actual exam hall.
yes
I bought a Casio calculator the calculator doesnt have an S-D button. How do i go about it. It is a casio fx-82MS |S-V.P.A.M| 2nd edition
Open university 1st year math, bans the Casio 991 in exams because of the SOLVE function. Just an fyi. I thought I would be ok but apparently not.. great presentation thanks.
The CASIO FX85 GT+.... the calculator I managed to break in GCSE Paper 2 😭
oh dear
@@HarrySurplus reason why we have a 5 😂
Hi i just wanted to ask if you had to set the CG50 to examination mode during the exam?
does the graphical calculator miss some features that are from the classwiz one or not? so it basically has the exact same features as the classwiz but with the added graph mode?
For my experience of using the graphical calculator, is has the same features - just different buttons to get there lol
Is the HP Prime graphical calculator allowed for UK A LEVEL maths exams?
Hi, do you think they would allow Casio CG50 for GCSE exams? So it would only cost us once, instead of buying two calculators for different exams (AS/A Level
No
U won’t really need this calculator for gcse
My sixth form sell the graphical calculator for £45 I do a level maths and physics should I buy it from the school?
i'd definitely think about getting it from your school if it's only £45! that's a really good price!
Harry Surplus Alright thank you
Terrell100 have you got snapchat? I might even have to get one off you myself? Aha
Hello Harry, for the classwiz calculator, when I press the MENU/SETUP button I only get the first 3 modes, I've tried reset then setup data, it didn't work, what else should I do???
man wat the hell yall need graphic calculator for
literally went through engineering math with a freakin ms570, complex and fourier analysis? went through whole vector thing with electromagnetism too... yeah...
and like, the university doesnt care, and doesnt allow anything better either
been using same one since highschool
graphing calculator is not a thing here in this country
probably a uk thing
Well explained!
Anyone who knows how to get a ti 108? They are missing.. the only ones are priced like 25 40 50 €. I found some, but completely unsure about the generation, and they are all with crazy shipping costs. I have oredered from foreign countries yet, and neve had to pay 20 € of taxes... thanks to all.
Will the graphical calculator replace the class wiz entirely (do I have to buy both if I want the graphical one)
Nope, you can buy just the graphical calculator! I didn't really use my classwiz after I bought the graphical 😊
Bro which calculator is more suitable for find vector gradient at a point
So can you use A Level one for GCSE/degree level? I want to buy just one and not have to worry about buying another one...
I'm not too sure, have a look online or check with your teachers as these may have too many features for GCSE
Thank you so much!!!
Hi love your videos. So I start year 12 in September and I am taking Maths Physics Product Design and Further Maths. I do the entire maths a level in year 12 with the exam and the further maths in year 13. If you obtain below an A in maths , you have to drop further. With me wanting to go to Imperial, which require an A* in maths , how hard is the workload to get an A or A star in maths in one year. And what tips could you give me. Thanks!!!
Thank you so much for watching!😌
I did Maths & Further Maths the same as you’re describing. I managed to get an A in on year! It is hard & there is a lot of work because your fitting everything into one year. All I can say is, keep up with your work and finish any homework as soon as possible. Ask questions in class as soon as there is something you don’t understand. Focus on the topics you finder harder so that you have enough time to perfect them! And use your teachers!! They are there to help you so don’t be afraid of going to them at lunch/study breaks as they will be more than happy to help! But also enjoy the maths because that will give you motivation to study!!
Hope that helps & best of luck!☺️
Harry Surplus Thanks a lot 👍👍 Appreciate your reply. Will try my best .
Can you use the 2 calculator for uni it does say for higher education to
Yes you can I think - but to be honest I rarely used a calculator in first year!
For the graphical one the website asks for company name
What do you put?
Dear Sir,
All my math I did, and still doing, on a FX-82: even on the University.......
Intergration, Differantial Equation solving, Matrix calculus, Vector calculus, lineair Regression
and so on....
The FX-82 (the one you refussed for A-level math) is a Buldozer for calculation... With a little sealend the will work in the Shower or in a swimmingpool. The battery-life is longer then 7 years..... my students are throwing with them and they still work.
Indeed, with a "Sinus-race" they are not the fastest ones !
The price in 2022/23 is below 10 euro's......
SO whats the adventage of a Gr.Calculator, or Math-sofware??
Yours......
Hey what about the other calculators that you showed?
Im a cheap skate so can I get away with just the 991ex calculator for both a level maths and further maths? I don’t want to be at much of a disadvantage in the exam, but I’m not even sure if I’m going to go ahead with further maths, as I only start it in year 13
yes! the 991ex is great for both
my college makin me get a casio fx cg50 thats 120 pound for a levels wtf ://////
so useful! thanks
No problem!
I love ur accent
thought you looked familiar then i remembered i watch your tiktoks all the time 😭
PLEASE ANYONE HELP! I have had the fx-991 PLUS(the gray calculator) for the past 5 years and it was good, but I started my degree last year, and I want to buy graphic one at the cost of 70$ top! Please help. I want calculator that can solve(like mine) quadratic equations(Mode 5-3). Also, I want calculator that can draw graphs for example: y=4x+2 or y^2=2x-4. Furthermore, I want a calculator that can integrate and differentiate(if there is one) PLEASE HELP! THANKS IN ADVANCE!
Is the casio fx cg 50 alright for A level maths becuase i already have one or should i buy a different one?
Yes ! The graphical one is great 😁
Can you tell me a calculator for O-level/igcse ?
One more mode table for chitting
K,s
Km,mam
T
Which grade are you in?
Can the fx 100ms work
awe Harry seems fun
Me with a classwiz calculator in GCSE
Thank u ❤
is the cg50 overkill for year 8 lol
What about casio fx911fs ? Is ok for a level maths?
I’m not too sure. I think it might be but do some research to double check!
I want best calulator for my A lavels
For graphical does it do translations of graphs e.g. translation of reciprocals etc
Cg50 allows games as well lol
Idk what I’m doing here, I’m doing Politics, Classics & Drama for A Level 😭😭 a boy in my drama class got a really cool calculator for A Level though that’s kinda why I’m here
we love cool calculators!
@@HarrySurplus yeah no it was like £130 or something, he could download Snake on it it was so sick
@@HarrySurplus also I love your videos even though I’m never gonna do maths again in my life, I still kinda love learning bits about it
Why are you holding them like if they are your phones
But none of them have CAS.
are you from uk
yes
Ok
you use calculators?
Why would you want Fx 895? That calculator is boring as hell
Our school sold the graphical ones for 26 pounds
you look like young dane deehan
I now have all 3 u showed lol
The fx-CG50 is really poor quality, screen dreadful it’s colour is washed out looking and red looks pinkish and you end up jumping around all over the dam place to do anything worthwhile, going from app to app, to switch from hex bin to floating point calculations
And multiple and division it uses children x symbol we’re one would expect to use • or * as well as / for division
HP Prime a far superior calculator, easy to type in programs and PPL quite powerful as well as able to graph do base calculation in hex bin and floating point all in one place without jumping all over the place in different apps like the CASIO, on the prime you get to stay in one place and do it all
send me one calculator plssss
I like your accent 😂
Tendencioso
Legend still has it he is being held hostage in that exact room
Hahaha nope. That’s my office lol
@@HarrySurplus legend still has it. There is more math work than human atoms in that office
Follow Jesus Christ he loves us all repent of your sins amen 🙏🏾
How can you Said, have your all sin Vanished??😏
any relevance to A level maths??
Jesus and gos is shit
No
Follow Jesus to later on become Muslims
hello ilo
Hello!
I have a stupid calculator, hahaha
Childish editing for a video that is supposed to be serious and informative. I assume that mostly high school/college students will be watching this - they are not children.
lol thanks for the feedback. sorry for trying to make a video entertaining
Lmaoo
@mrmogelost6720
S O U R - P U S ?!!#??!!
I am a 74-yr-old Mechatronic Engineer, having studied in a number of Colleges and Universities throughout Scotland and England.
I have used various Casio and HP calculators, the most powerful and enjoyable being HP48GX.
I, personally, found this young man's presentation and style to be very well rounded and informative. It's great to see such enthusiasm and desire to pass on knowledge and experience to others.