# Welcome to Wootube

Browse the main channel, connect with me on Twitter & Facebook, read the blog, download worksheets & resources, or select a playlist below:

## 44 thoughts on “Welcome to Wootube”

June 30, 2014 at 10:13 pm

Can u please explain the method of cylindrical shells to me….I’m an extension 2 teacher teaching it for the first time and I’ve tried looking on line but haven’t found that perfect answer. Do I calculate the volume of each shell as a cylindrical shell or do I use the rectangular prism. There is so much out there sometimes it’s hard to filter through all the information. If you could point me to a good source that would be great.

eddddie responded:
July 1, 2014 at 8:38 pm

You’re in luck! I have actually just finished teaching through the volumes topic, and I’m in the process of editing the videos now – keep an idea on my volumes playlist and you’ll see the videos come up in the next few days.

Umar said:
July 9, 2014 at 6:59 pm

Hi Eddie,

Your videos are great and a real help. T results are so cool 🙂 We don’t get taught them in the UK for some reason.

Please could you help me with identities which involve different size angles. For example:

Sin(2x) = Cot(x)

How would I approach something like this using the t results?

If you could make a video with a few worked examples that would be great.

Thanks
Umar

Stephanie said:
July 11, 2014 at 1:10 am

Yeah like how would you do something like

cos(2x)/(cosx + sinx) = cosx – sinx

cot(a+b) = cotacotb-1/cota+cotb

How could I do these using t results?

Umar said:
July 11, 2014 at 1:35 am

sin3x + sinx = 2sin2xcosx

How could I do this using t results?

August 11, 2014 at 8:11 pm

Hi Eddie
I have a question regarding mechanics
I’ve looked at a few different textbooks now and when taking into account air resistance some textbooks will use kv (if proportional to v) and some will multiply by m and assume this force is mkv…I’ve watched a few videos from different people on line and they all use mass multiplied by the acceleration due to air resistance….which one I’d it

Terry lee uses kv so does Fitzpatrick while Cambridge uses mkv (am I over thinking this)

Thanks

Eddie Woo responded:
September 7, 2014 at 3:17 pm

This is a fantastic question and I addressed it just recently with my class. It’s a bit tricky to explain in text, so you can watch my take on things here:

Bernie said:
August 26, 2014 at 11:32 am

Mr. WOO, can you please assist with expertise in Expert Systems and Neural networks and where to find documentation please? Your videos are GREAT!

matt behn said:
September 4, 2014 at 1:30 am

I listened to your mathematical induction from other side of the globe . Your explanations are clear , thorough And very precise. I want to thank you for your excellent job
and great videos. Are you professional mathematician? thanks again.

Eddie Woo responded:
September 6, 2014 at 4:16 am

Hi there Matt, thanks for writing! Glad to hear you find the videos so helpful. I’m not a professional mathematician – I’m a professional high school teacher. 🙂

Hafsa said:
March 1, 2015 at 7:41 pm

Hi Eddie, I realised you don’t have a lot of complex numbers videos. If you end up doing them in class plss upload them. I’ve benefited sooo much from your videos and your explanations are actually taking my understanding from about 85% to 95-99% ish, (if that makes sense). Thx loads.

Ilhea Yen said:
March 14, 2015 at 6:48 am

Hi Eddie, I really do like your YouTube video lessons! I am a maths teacher in Sydney and I would like to start YouTube video lessons for my students like you have done. Can you please tell me what kind of equipment do I need?

Ishan said:
May 24, 2015 at 9:17 am

Hey Eddie,

Hope you’re having a great day!

I’m doing an expert roundup on my site and I think many new Math teachers using education technology products in their classroom like me would love to know your answer to this question :

If you could only use 3 Education technology tools/apps/sites for your teaching which 3 tools would you choose? e.g. WolframAlpha, KhanAcademy and Inside Mathematics.

As soon as I’m done compiling the results, I would inform and link back to your blog.

Thank you!
Ishan

Eddie Woo responded:
May 31, 2015 at 3:12 pm

Hi Ishan. The 3 tools I’d choose would have to be… Youtube (for obvious personal reasons), Desmos (nothing can beat it for graphing – it even does lines of best fit!) and Tweetdeck (for discovering/curating inspiring material and connecting with other educators). I know two of those aren’t education-specific, but they’re what I use to support learning (both mine and my students’)!

Viki said:
November 16, 2015 at 8:47 am

Good on you mr woo , you are doing a great job as a teacher. I hope your style rubs off on many other teachers !

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November 25, 2015 at 2:12 pm

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Seamus said:
December 3, 2015 at 9:56 am

your a better teacher than my math teachers

John Cinea said:
May 13, 2017 at 1:10 pm

You are a super awesome person. Great job.

Arosto Ben said:
December 9, 2015 at 2:54 pm

May you be blessed for the good work that you are doing. am a student teacher and you help me so much. watching your videos from Othaya teachers college in Kenya

Uno said:
August 13, 2016 at 8:42 am

Hi Eddie,

Your enthusiasm for maths is contagious.
It will infect any curious mind with wonder.
You’r benefiting ..kids all over the world.
Also you’r a ‘teacher of teachers’ – The Teacher
A place is already reserved for you in the great hall of mathematics.

Keep it up.

sam learoughley said:
September 11, 2016 at 2:28 pm

you are amazing!

Jimmy Deng said:
October 21, 2016 at 11:25 pm
Trevor Colvin said:
December 9, 2016 at 7:09 pm

Eddie. I just caught you on the ABC and I am delighted to know you are in the system making a difference. I am an old man now and have been watching our education standards slip dramatically from when I was a student. It has nothing to do with money. It has to do with direction and we have lost it in the last forty years.
Your excitement and enthusiasm in infectious and I hope you can infect the nation. Good on you mate.

Lucas Club said:
May 1, 2017 at 9:49 am

Hi Eddie
What a terrific explanation of databases and using sql, when I was at uni 50 years ago no one ever actually explained anything…… your students are very privileged to have your expertise and gifts to give them a great start in life.

philip said:
May 1, 2017 at 8:24 pm

Good on Yoo Eddie Woo. What an inspiration.

Sylvana Whyte said:
May 1, 2017 at 8:24 pm

I think you are an inspiration Eddie Woo. I’m a grandparent and one day I’m going to show my grand babies your videos. Your mother would be so proud of what you have achieved.

Eve Anderson said:
May 1, 2017 at 8:43 pm

Hi Eddie,
Just saw you on Australian Story. Thank you for being the human that you are.

Alan Stephens said:
May 1, 2017 at 8:43 pm

Hi Eddie, on behalf of most if not all Australians i would like to thank you and your family for the light and hope you bring to students and parents. You are the best example of how important respect and kindness in all our lives is. I am so pleased that through TV i got to know you.
Love you mate.

Jennifer Cho said:
May 2, 2017 at 4:06 am

Hi Eddie, I’ve just came across an aritcle about your Maths videos and have actually watched some of them. You’re brilliant and you made understanding Maths so simple and logical. Thanks so much for sharing your knowledge and insights on Maths. I hope to be able to influence and get my kids “sucked in (as one of your students commented)” into Maths too. Please continue sharing your knowledge and influencing kids not just in Australia but around the world too. By the way, I’m a mother to two school going kids in the United Kingdom and I just love the way you explain fractions. BRILLIANT! Thanks again so much!

Eyvett said:
May 2, 2017 at 12:32 pm

Thank u from a mum trying to teach her son high school maths that’s is so different from when I went to school, and in a small country town there are few teachers willing to tutor.🤓

Richard Miles said:
May 13, 2017 at 9:26 pm

Hi Eddie, Just watched a recording of Australian Story. We need more teachers with your passion and understanding of children in our profession! May you keep inspiring both students and teachers!

Mary Milevski said:
December 30, 2017 at 10:45 am

i saw you on Australian Story last night and I hope many other (maths) teachers aspire to be like you. My son is only in year 4 primary school and he had a horror teacher all year and it really affected his learning and interest/improvement in maths. this has been really difficult as a parent because you hope to give your children every opportunity to shine and progress & a teacher is the interface for this. i cant help but feel that she (the teacher) really let him down. I will show my son your wootube and tell him your story and he will see that this is the way a teacher is supposed to be,

Ayush Gupta said:
December 31, 2017 at 5:20 pm

Thank you a lot for such helpful videos

Elizabeth said:
March 22, 2018 at 9:07 pm

Dear Mr Woo,
I was advised to watch your story from Australian Story. I struggled daily with maths from a very young age. 12% was one particular test result! One teacher in high school stood me up in front of class and grilled me with questions he knew I could not answer. But then in Year 12, I was placed into the “failure maths class”, but I gained a teacher who walked in and announced that there were no failures in her class! I passed for the first time in final HSC exam. So I thank you from the bottom of my heart for being a teacher who cares and does not shame those who cannot grasp maths quite as quickly as others.
On a final note, I wept as I watched you talk of your dear children, especially your young son whose has been diagnosed with eosonophilic oesophagitis. You see, my 12 year old son is the same. Eczema. Food allergies. Asthma. EO. Not an easy road for children. His life has also been impacted with severe learning issues. So I send you my best wishes for you and your family. Thank you for being such a wonderful teacher who brings joy to the classroom.

Coffee Lover said:
April 7, 2018 at 2:31 pm

Because of his infectious smile – I have fell in love with Math again!

S.S. Sabari said:
May 17, 2018 at 3:28 pm

Thanks, Eddie. Bcoz of your classes, I begin to love maths.

tom john said:
May 24, 2018 at 8:09 pm

Yes,Definitely

Wali Rahimi said:
July 23, 2018 at 6:33 pm

You’re actually a God at math

ARKA PRAVA SARKAR said:
July 30, 2018 at 5:44 am

Hi Eddie… After studying physics major for 5 years, I started to learn these basic maths again… You are just wonderful… Your videos really helped me to explain those which I knew beforehand but didn’t have a better explanation

chana said:
July 30, 2018 at 9:16 am

Hi Eddie, I just want you to know that your visuals for quadratic equations are amazing and really appreciated. Thanks so much.

August 1, 2018 at 11:06 am

Man you are the BEST maths teacher in the world, despite me not being in your class directly and just by watching your videos I seem to get it wayyyy more than when I’m actually in my maths class; which is a testament to how good you are. Keep doing what you are doing and spread love to maths.

Yours sincerely, Bishal Pradhan (1-08-2018)

September 9, 2018 at 2:44 pm

Hi Sir Woo.
I’m a Student in the Philippines struggling to understand math… One day, I ran across your video in my Youtube feed. I was amused at first because I understood most of what you’re saying. I used to hate math when I was in Junior High School (Currently Year 12 now, Senior High) and I now regret my junior years that I hated math. I lacked the enthusiasm to know the world of math. I started to watch your videos a year ago too. And now that I have college entrance exams, I continue to expand my knowledge by watching your videos. Your videos truly help.

I just started to embrace math last year and sparked my enthusiasm to know more because of you. Thanks you SIr Eddie. You truly changed my life towards the academic field.

You are truly a remarkable teacher.

Regards,
A.

Raymond Lai said:
December 26, 2018 at 5:57 am