Meet the 94-year-old calculus teacher!

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  • Опубликовано: 8 май 2024
  • Thanks to the RUclips algorithm, I discovered Mr. Feng, a 94-year-old calculus teacher, ‪@ycmathematicsphysicsandche5659‬ . He said in his note that teaching makes him happy and makes his life meaningful, which I resonate with so much. I want to make a video to introduce him to you! Please consider subscribing to his channel and supporting what he does. Thank you.
    The solution to the derivative challenge problem: • [Calculus] - A challen...
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    Big thanks to my Patrons for the full-marathon support!
    Ben D, Grant S, Erik S. Mark M, Phillippe S. Michael Z, Nicole D.
    💪 Support this channel and get my math notes by becoming a patron: / blackpenredpen

Комментарии • 91

  • @blackpenredpen
    @blackpenredpen  Месяц назад +54

    The solution to the derivative challenge problem: ruclips.net/video/V9rrLp2CpPw/видео.htmlsi=SadRcaYGZUVruIuj

  • @shiladitya7739
    @shiladitya7739 Месяц назад +242

    someone once said, there are two types of teachers. teachers by chance, and teachers by choice.

    • @weo9473
      @weo9473 Месяц назад +5

      I first heard this through Alakh sir ❤️

    • @FireyDeath4
      @FireyDeath4 Месяц назад

      I like how that sentiment reflects the way that true choice is deterministic.

  • @IrrelevantGuy
    @IrrelevantGuy Месяц назад +79

    I have commented this in his video, and I'll say it again, this is one of the most heartwarming things I have seen all year

  • @monjecareca7787
    @monjecareca7787 Месяц назад +80

    I appreciate what you did and I want to say thank you for presenting us such a good teacher.

  • @pritikumaritiwary4850
    @pritikumaritiwary4850 Месяц назад +36

    That is not just the ability..... That is a super power.😮😮😮😮

  • @eliteteamkiller319
    @eliteteamkiller319 Месяц назад +2

    He has very unique insight.
    Also he can play a mean harmonica, so he has more than STEM ability.

  • @glenyoung1809
    @glenyoung1809 Месяц назад +11

    It may sound a bit obvious but as you get older, especially after the age of ‘retirement’ it’s important to understand that having a purpose and goal in life very much plays a role in a person’s longevity.
    I’ve seen people who retired and thought they would live a life of leisure, only to find themselves miserable and mentally declining because they stopped having a purpose and goal in life, and no golfing everyday isn’t a ‘purposeful’ lifestyle, unless you’re a pro-golfer.
    The fact that Feng hasn’t lost his motivation and desire to teach after all these years says a lot about why he reached 94 and with the energy he has.
    There is another 93 year old who displays a similar energy, actor William Shatner…

  • @DivineQuotes-hs8v
    @DivineQuotes-hs8v Месяц назад +11

    It’s not just about doing something, instead, it’s about loving what you do.
    This Professor needs to have more subscribers, guys let’s bring 10k to his channel.

  • @BeetleDude33
    @BeetleDude33 Месяц назад +31

    Thx for showing us his channel. He's a true legend!

  • @calitts4708
    @calitts4708 Месяц назад +13

    When I saw your post I immediately went to his channel to watch his video and support him!

  • @scottleung9587
    @scottleung9587 Месяц назад +6

    That's awesome - continue doing what you do, Mr. Feng!

  • @shardwolf072
    @shardwolf072 Месяц назад +12

    Will do, that question seems interesting

  • @EricLeePiano
    @EricLeePiano Месяц назад +3

    this really resonates with me too as a math and science tutor. i have no plans on retiring, teaching is fulfilling and i love my job!

  • @berthavegagalicia1276
    @berthavegagalicia1276 Месяц назад +8

    We share the same goal, I hope can teach math my entire life ❤

  • @lunya1519
    @lunya1519 Месяц назад +2

    I swear i saw him 2 days ago with 300 subscribers, came to check on him today and he had 10k, im glad youre helping make his dream a reality

  • @jong.4864
    @jong.4864 Месяц назад +4

    All the best to you! This is such a special video.

  • @dubby_ow
    @dubby_ow Месяц назад

    good teachers carry a huge aura and make difficult topics seem easy, you're one of them sir!

  • @TwentySeventhLetter
    @TwentySeventhLetter Месяц назад

    This literally made me cry. I know you're being humble, both of you, but you clearly know so much more than just math or physics. You are deeply and intimately familiar with what it means to connect with other humans, to understand how they understand and to translate incredibly complicated concepts about real or theoretical worlds and to bring together the experiences of your students with your own. I used to wonder what I should do with my life when I was still in high school, tried to figure out how or where I would do the most good, but in time it became clear that the most important thing you can possibly do is whatever you love doing, because your love will radiate out and attract and inspire others to do the same, and then you will all have a more sublime life for it. So thank you, for teaching, for shouting out a fellow teacher and sharing your popularity with someone who might not have as much time as the rest of us, and for caring about people and about yourself.

  • @EntropicalNature
    @EntropicalNature Месяц назад +1

    So glad you discovered this Mr Feng. Thanks to your plug the nice man already has eight times as many subs. Being a teacher myself this really hits homebase and fills me with joy. Hopefully there are a couple of years left for Mr Feng (and for you also of course).

  • @knew_789
    @knew_789 Месяц назад +1

    Thanks for recommending him!

  • @masamune9082
    @masamune9082 Месяц назад

    Thanks for the vid! This video is so wholesome.

  • @kachraseth42O
    @kachraseth42O Месяц назад +5

    Brother, I have no words

  • @SidhantVaibhav
    @SidhantVaibhav Месяц назад +4

    Mannnnnn...I am from India and i am appearing for JEE ADVANCED in a few days and during my preparation I watched your videos because it motivated me to study more and made mathematics interesting (which is the toughest subject in the exam)
    YOU BECAME MY IDOL, as everyday you inspired me to solve tough questions and work hard.
    And today after seeing this video i am proud of myself for choosing the RIGHT person as my idol.
    Hats off to you...keep spreading knowledge and kindness❤
    ✌️

  • @KobeCristiano
    @KobeCristiano Месяц назад

    Thanks bprp, you did a good job. You are really a true elder brother to all of us. Well done bro

  • @fireballman31
    @fireballman31 Месяц назад +4

    thx for the recommendation

  • @epothos1
    @epothos1 Месяц назад

    That was beautiful thank you

  • @TranquilSeaOfMath
    @TranquilSeaOfMath Месяц назад

    Excellent. This was good.

  • @jaybae8056
    @jaybae8056 Месяц назад +1

    i wish to know this man from YC Mathematics. i want to send him some money, and kind words. i wish to show my appreciation for his dedication to teaching. how can i do this? he is my type of professor. if i were lucky enough to get chosen to be in his class, i would never want to leave my desk. he is amazing.

  • @080allanthomas5
    @080allanthomas5 Месяц назад +3

    Amazing❤😊

  • @RITVIKROHAN.P
    @RITVIKROHAN.P Месяц назад +1

    Brother your math teaching skills are wonderful and also make me love math as once i used to fear math
    Also i loved the way of teaching by feng sir who has exceptional ablities in teaching ❤❤❤

  • @yoniziv
    @yoniziv Месяц назад

    you are really amazing!

  • @guidichris
    @guidichris Месяц назад +7

    So that means you have time to pick up physics!!! I will add this channel right now. Thanks.

    • @blackpenredpen
      @blackpenredpen  Месяц назад +5

      Physics is fun. I actually did the center of mass with my students yesterday.

    • @glitch933
      @glitch933 Месяц назад

      ​@@blackpenredpen🤔

  • @amzion
    @amzion Месяц назад

    I'm not into teaching (because I want to get money in quant/finance) but I totally understand your point of view and I think its a better view of your occupation. Maybe I'll get to it one day

  • @o_s-24
    @o_s-24 Месяц назад

    What a legend

  • @dd_hd2
    @dd_hd2 25 дней назад

    Please make video on Fourier transform.

  • @rishitgupta2054
    @rishitgupta2054 Месяц назад +6

    Within 10 Seconds

  • @joshuahillerup4290
    @joshuahillerup4290 Месяц назад

    Ooh, a teacher in Toronto!

  • @ankushpratap6186
    @ankushpratap6186 Месяц назад

    Can u plwse make a video on integrating √cos2x. Btw love yo videos ❤

  • @matei_woold_wewu
    @matei_woold_wewu Месяц назад

    I saw that publication

  • @ahmadisroil
    @ahmadisroil Месяц назад +2

    I am from indonesia. I like your Chanel

    • @ahmadisroil
      @ahmadisroil Месяц назад

      I am math teach in Indonesian school

  • @davidnewell3232
    @davidnewell3232 Месяц назад

    Area code 416 is Toronto, Canada.

  • @Thenerdycat61
    @Thenerdycat61 Месяц назад

    ppl who have respect for this man:

  • @deuscaesar
    @deuscaesar 21 день назад

  • @cdkw2
    @cdkw2 Месяц назад

    I want to be like him

  • @r-setizs1415
    @r-setizs1415 Месяц назад +1

    I am from India❤❤

  • @Archimedes_Notes
    @Archimedes_Notes Месяц назад

    I watched his video. Go there

  • @achintyaagrawal9819
    @achintyaagrawal9819 Месяц назад

    99 (the answer of f(x)f'(x)=x), his ability to teach is great, just like the answer

  • @blendet2953
    @blendet2953 Месяц назад

    hello, you should try and attempt sqa advanced higher mathematics paper.

  • @davidbrisbane7206
    @davidbrisbane7206 Месяц назад +1

    More heartwarming would be ... "I'm 94 and still repeating Cal 1 all these years."

  • @AkramBourmul
    @AkramBourmul Месяц назад

    حنا عندنا الاستاذ نور الدين عملاق الرياضيات

  • @indefinite115
    @indefinite115 Месяц назад +1

    that's an og

  • @bharadwajkk6823
    @bharadwajkk6823 Месяц назад

    Day 2 of asking BPRP to do JEE Advanced Questions
    Hi BPRP! Please solve JEE Advanced questions for maths! They're really fun! And once 2024 releases, JEE Advanced 2024 too!

  • @sebastiencarton9778
    @sebastiencarton9778 Месяц назад +1

  • @nibeditasarkar143
    @nibeditasarkar143 Месяц назад

    Can you please solve my problem?
    The problem: solve for a (a)^a=a a is real & this equation has 2 solutions.
    I would be very thankful if you make a video on this problem.

    • @marshallmanz123
      @marshallmanz123 Месяц назад

      1 and-1?

    • @Gordy-io8sb
      @Gordy-io8sb Месяц назад

      @@marshallmanz123 1 is a solution, yes, but (-1)^-1 would just be 1/-1, which is -(1/1), which is -1.

    • @marshallmanz123
      @marshallmanz123 Месяц назад

      @@Gordy-io8sb And that satisfies the equation???

    • @Gordy-io8sb
      @Gordy-io8sb Месяц назад

      @@marshallmanz123 AH. I wrote this at like 1:00 or 2:00 AM at night, and at that point I was pretty much half-asleep. I didn't consider that.

  • @nibeditasarkar143
    @nibeditasarkar143 Месяц назад

    Can you please solve my problem? I am requesting you.
    The problem solve for x in the eqn
    (x)^x=x ( x is real & there are 2 values for which the eqn is true)

  • @ValidatingUsername
    @ValidatingUsername Месяц назад

    Isn’t F’(x)=F(x)/gradF’(x)

  • @windofchange-pg5jk
    @windofchange-pg5jk Месяц назад

    💚🤍❤️

  • @user-fp4vk9wj8g
    @user-fp4vk9wj8g Месяц назад

    Such a (G)

  • @kavinesh_the_legend
    @kavinesh_the_legend Месяц назад

    Hope he doesn't have memory loss

  • @rishitgupta2054
    @rishitgupta2054 Месяц назад +2

    First

  • @user62490
    @user62490 Месяц назад

    活到老学到老

  • @MonkeyDLuffy-ed4fj
    @MonkeyDLuffy-ed4fj Месяц назад

    Calculus is way beyond my comprehension, why learn something that is useless anyway

    • @xenon9717
      @xenon9717 Месяц назад +2

      it isnt useless lol, you dont have to learn it but it is literally everywhere in fields like engineering

    • @Xander-cq1vj
      @Xander-cq1vj Месяц назад

      It’s useless for dumb people

  • @joelrwo5974
    @joelrwo5974 Месяц назад +1

    Follow Jesus Christ, and then your life will become more meaningful

  • @austinworkman9967
    @austinworkman9967 Месяц назад

    what a nerd