I am Muslim and you can say things in a better way. Only Allah Swt accepts who will go to heaven not us.. In Islam, we do not even know if we are going to heaven 100% so we should be people to strive in the way of the truth.
Bilal Younas - Idiotic, mindless, unrealistic, and self-oriented people like you are the reason Islam has such a bad name today. You should take that offensive and controversial comment down. By the way, I'm a Muslim and I literally was embarrassed and ashamed to to see someone say something that awful. All the hate for our religion is better justified than the reasoning for our decisions on what to say and do when it comes to people like you. In the Qur'an it states that all people will be judged based on the righteousness of their decisions during life, not purely their religion.
I think it is more about how the answer would be correct if you use significant number to make the answer less precise , becouse if you start with less precise numbers they are most probalbly round up at first place from their precise form so when you calculate these rounded numbers you must make the answer less precise to make sure its more correct than the unprecised answer.
Hi, Tyler DeWitt , I am a chemistry lecturer from India. I really like all your videos on Significant figures. Great job ! It has clarified some of the FAQs of my students and mine too !! Thanks again, keep up the good work !
Your analogy is brilliant. Really made this concept click for me--I only wish teachers could explain it as easily and clearly as you did...then we could all avoid the headache of students complaining that this concept doesn't make sense. Teachers set themselves up for failure when they present sig figs as this obscure and bizarre concept that no one understands. Thanks so much for this video!
Hats off Tyler. My 30 years of failure in understanding this concept was done straight after seeing these 10 simple, excellent and extraordinary video clips. You are a Star. You are a light.
Oh my god, you are the best. today when I went to my physics class and didn't get the explanation, I wasn't procrastinating as I knew about your channel before and also that u must have made a video on significant digit already. now I can confidently walk in class as your lesson made everything crystal clear. one more thing I also really like the way your video are format, they seems so professional, Keep up the good work.
my chemistry teacher told us that on some problems we shouldn't use sig figs or else we will get a really inaccurate answer and when i asked her how will we know she said you just will. and sure enough on a test there was one such problem and of course i didnt know and used sig figs getting the answer wrong and i still dont quite understand. so you use imprecise measurements and get an imprecise answer that just looks precise so you need to make the imprecise answer less precise just to make it so that it doesnt look precise?
we don't mean to show it imprecise.... but it doesn't make sense to write the whole answer (with all decimals) because it is uncertain, meaning thereby inaccurate...So we show that the answer is 1.9 that is it lies between 1.86 to 1.95 ...... we are uncertain at 1st decimal place ... so it doesn't make sense to show the further decimals... i hope you get it now
jesus!! thanks god for the last video. i ve seen all the nine videos before in a raw getting pissed off for your different approach. and than, here you are again in the last one with the same effective method ; making examples, making me care, showing the point. every teachers in the world should learn how to teach like this, especially here in italy. I THINK WOULD BE EVEN BETTER IF YOU TAUGTH TEACHERS HOW TO TEACH!
No one taught me this at college. They said just f-ing do it this way. I used to plug my numbers in a formula after each chemistry experiment to calculate the standard deviation with out knowing that is standard deviation 😅
I was creating my first videos on TH-cam and I met you for the first as a math student and student tutor.... And honestly not explanation is off the chain.... Awesome job bro
wow. thank. you. I FINALLY UNDERSTAND WHY IT MATTERS!!! I asked my college professor to explain this and he wasn't able to explain it in an hour lecture... as great as you did in 7 minutes.
When you said the MASS of the rock was 82 grams, I think you meant VOLUME..... Just kidding. I was pretending to be one of those people that feel the need to correct you over absurdities. I'm so thankful for your videos, you're going to be the reason I make it through this semester!
Thank you so much Taylor, I look around alot of video which doesn't solve my question except yours! You are gifted with chemistry and explaining , you are a hero to save my chemistry.
I have a question, hehe, I've been thinking, let's say you have a big piece of land, and by some reason you want to put 3 division pieces of 3 meters, you have a ruler that can only meassure one decimal of meter, so you meassure 3.0m. So now you multiply 3.0*3 and you get 9.0m right, same precision you begin with, but now that you see that it will only take 9.0m you say, well, I rather make 4 division of 3 meters, so again you multiply 3.0m *4 and now you end up with 12, but, you can only have 2 significant figures, so your result is actually 12.m not 12.0m, but if you instead of multiplying you make the sum, you end up with 12.0m, so what to do? I mean from your instruments 12.0 is doable and with the same precision as your instruments. Or lets say you have a land of 12.0m and you want to divided in 5 pieces, , now you have a by significant figures, 4.00m but that is way more precise than your instrument, but you have 3 significant figures just as the one you begin with. Or in your very example you end up with 2.0 grams per cc, but that .0 is more precise than your instruments, that .0 you cannot know it, because your instruments cannot meassure a decimal of a gram.
This video is really very helpful for the students to understand the importance of significant figures. Thank you very much for posting this..Bless your heart..
THANK YOU SO MUCH~!!! I HAVE BEEN SO CONFUSED ALL MY LIFE AND U CLEARED IT ALL FOR ALL OF US~!! SO VERY GRATEFUL~~!! I hope your days are easy and happy, Sir ~~!!
Hi Tyler, you are an awesome teacher and thank you for making all these videos! I only have one question about one of the words you used in this video. Why did you use the word precise instead of accurate? Based on the definitions of the two words, isn't it better to use the word "accurate" since the rocket laser scale can measure something closer to the actual value?
Omg Tyler. Thank you so much. I thought I was going to fail Chemistry after the first chapter! This helps so much because I read the chapter and was like: So the F What!
When we estimate mesurement uncertainty in chemical measurement the general rule is that we put the final answer in only either one or two significant figures. Are we being more conservative here because some of our measurements that we used may have only one or two significant figures while others may have more significant figures?
awesome tyler is the man! But question??? is accuracy a better term than precise for the locations downtown, since precision means close relative to other measures, whereas accuracy refers to close to true measure (like the actual location)? (which I learned from tylers other videos haha) THANK YOU FOR TEACHING ME
Hey man, awesome video. So essentially the heart of the problem lies in the fact that in chem/physics we often measure things and it is basically impossible to get a measurement that is 100% correct right?
That was an EXCELLENT example! I understood the whole of the concept becoz of just that one real life example.....do try to include examples like these....makes us understand better! Thanks a lot! may gid bless you....
Ooooooooh my gosh I've been so confused on why significant figures are important for so long and they've been so frustrating and this makes perfect sense
It seems here the answer is one-decimal digit more precise than the dividend and the divisor. They both are precise to 7 places past the decimal. But shouldn't the answer be also?
I think these rules are useful only in dealing with measurements of limited precision, not abstract numbers in math. If you know you have exactly 3, that is the same as 3.0, 3.00, 3.00000 etc. You can set it to as many significant figures you need and do not need to round. So 3 x 5 = 15. So if you measure 5.234 and want to multiply it by exactly 3, then 3 x 5.234 is actually 3.000 x 5.234 = 15.70. When faced with illogical outcomes, like 3 x 5 = 20, the real problem is not with the process of using significant figures, but the low precision of the inputs.
Hi Tyler DeWitt! Thank you for posting this video it has cleared up a lot of misunderstanding for me. I do have one question, when we are doing problems in chemistry most of the time we are given the numbers for example the rock in your video how do I know if its a precise number or not? Am I over thinking this?
BLESS YOU THERE IS A SPECIAL PLACE IN HEAVEN FOR PEOPLE LIKE YOU WHO MAKE SENSE WHEN THEY EXPLAIN THINGS
I am Muslim and you can say things in a better way. Only Allah Swt accepts who will go to heaven not us.. In Islam, we do not even know if we are going to heaven 100% so we should be people to strive in the way of the truth.
I can't believe people still believe this xD
Bilal Younas Such a primitive mindset.....
Ashamed of you
Agh wait no I made this comment to appreciate Tyler and his teaching not to spark a debate on religion
Bilal Younas - Idiotic, mindless, unrealistic, and self-oriented people like you are the reason Islam has such a bad name today. You should take that offensive and controversial comment down. By the way, I'm a Muslim and I literally was embarrassed and ashamed to to see someone say something that awful. All the hate for our religion is better justified than the reasoning for our decisions on what to say and do when it comes to people like you.
In the Qur'an it states that all people will be judged based on the righteousness of their decisions during life, not purely their religion.
This man single handedly carried me through high school when my teachers would get mad at me trying to explain everything. Thank you so much.
Stop moving my hands? Sorry, not gonna happen. But I'm really happy that you found this video useful.
You don't need to! Thanks Tyler DeWitt
You're amazing and I love your videos so much!
SIR THANK YOU FOR MAKING THESE INCREDIBLY USEFUL VIDEOS :) LOVE YOU SO MUCH!
gesticulation is a virtue
I think it is more about how the answer would be correct if you use significant number to make the answer less precise , becouse if you start with less precise numbers they are most probalbly round up at first place from their precise form so when you calculate these rounded numbers you must make the answer less precise to make sure its more correct than the unprecised answer.
Thank you for taking time out of your life to put up all these amazing videos for helpless students. You are my hero!!
Amanda Mason ....True, very true
I thought it said hopeless 😩
@@Franciscoo___ me to
11 years later you are still a legend. All your significant figures videos are great!
Hi, Tyler DeWitt , I am a chemistry lecturer from India. I really like all your videos on Significant figures. Great job ! It has clarified some of the FAQs of my students and mine too !! Thanks again, keep up the good work !
Finally found a good explanation of the why behind significant figures. Awesome explanation, thank you.
I'm so happy you liked it! This is one of the my favorite videos that I've ever made!
"I measured both of these with plastic science equipment from the Barbie playset"
Gets me every time.
Thank you so much my teacher was trying so hard to explain this to me but I just wasn't getting it. I watch this and it immediately makes sense!!
Loved the analogy
That is really funny. I will never forget this because it is very logical.
Thank you! This is one of my favorite videos that I ever made!
Tyler DeWitt This video taught me something I had never even thought about. Thank you for contributing your knowledge to TH-cam as free education.
Your analogy is brilliant. Really made this concept click for me--I only wish teachers could explain it as easily and clearly as you did...then we could all avoid the headache of students complaining that this concept doesn't make sense. Teachers set themselves up for failure when they present sig figs as this obscure and bizarre concept that no one understands. Thanks so much for this video!
Hats off Tyler. My 30 years of failure in understanding this concept was done straight after seeing these 10 simple, excellent and extraordinary video clips. You are a Star. You are a light.
Oh my god, you are the best. today when I went to my physics class and didn't get the explanation, I wasn't procrastinating as I knew about your channel before and also that u must have made a video on significant digit already. now I can confidently walk in class as your lesson made everything crystal clear. one more thing I also really like the way your video are format, they seems so professional, Keep up the good work.
I’m very sensitive, but your passion for educating made me tear up at the end of the lesson. Thank you for your help!
Wow finally sig figs make sense! Thanks!
Extremely helpful explanation that even an idiot like me could grasp. Just starting a science degree and this helped a lot, thank you.
From Egypt, really I didn't find anyone explaining so wonderfully like that I hope you continue to Download videos
my chemistry teacher told us that on some problems we shouldn't use sig figs or else we will get a really inaccurate answer and when i asked her how will we know she said you just will. and sure enough on a test there was one such problem and of course i didnt know and used sig figs getting the answer wrong
and i still dont quite understand. so you use imprecise measurements and get an imprecise answer that just looks precise so you need to make the imprecise answer less precise just to make it so that it doesnt look precise?
we don't mean to show it imprecise....
but it doesn't make sense to write the whole answer (with all decimals) because it is uncertain, meaning thereby inaccurate...So we show that the answer is 1.9 that is it lies between 1.86 to 1.95 ......
we are uncertain at 1st decimal place ...
so it doesn't make sense to show the further decimals...
i hope you get it now
Many chemistry teachers came in my life but it's only you who has satisfied me 🙏
jesus!! thanks god for the last video. i ve seen all the nine videos before in a raw getting pissed off for your different approach. and than, here you are again in the last one with the same effective method ; making examples, making me care, showing the point. every teachers in the world should learn how to teach like this, especially here in italy. I THINK WOULD BE EVEN BETTER IF YOU TAUGTH TEACHERS HOW TO TEACH!
No one taught me this at college. They said just f-ing do it this way.
I used to plug my numbers in a formula after each chemistry experiment to calculate the standard deviation with out knowing that is standard deviation 😅
You should do a video of significant figures in combine operations.
Thanks, u r such a good teacher, u r better than my highly graduated chemistry and maths teachers, love from india
Great analogy man, thanks. Helped a lot!
Thanks for freeing me from this haunting question
Question : Sir, shouldn't you use the word "accurate" instead of "precise"? (as accuracy is the measure of the closeness to the actual value)
yeah i think the same way
watching from India. 🙏 nice stuff sir... 👍
I was creating my first videos on TH-cam and I met you for the first as a math student and student tutor.... And honestly not explanation is off the chain.... Awesome job bro
wow. thank. you. I FINALLY UNDERSTAND WHY IT MATTERS!!! I asked my college professor to explain this and he wasn't able to explain it in an hour lecture... as great as you did in 7 minutes.
This is an A+ example of a well-explained video. Keep up the great work!
When you said the MASS of the rock was 82 grams, I think you meant VOLUME.....
Just kidding.
I was pretending to be one of those people that feel the need to correct you over absurdities.
I'm so thankful for your videos, you're going to be the reason I make it through this semester!
You definitely made me smile. Thanks for the comment!
+Tyler DeWitt hey you look like Jesse McCartney.
Volume is measured in cubic centimeters; mass is measured in grams or kg.
GuitaRN he is just giving examples,not in reality
You had me for a minute...
Explained it better than any teacher I'd ever had. Thank you so much.
By far, this is the best tutorial i have seen . Thank you and keep up the good work. you are a tremendous help.
You're the reason I'm starting to like chem. I owe you all of my thank you's.
Explains everything beautifully. A born teacher.
The answer to my age-old question and partially how I'm getting my chemical groove back. Thanks Tyler.
awesome analogy sir.....thank you.....very very much
I've always been confused by this bc I'll get an answer then have to round up +20,000 or something crazy like that. How is that more precise?
Good and satisfying explanation of sigfig with objectivity rather than telling rules without context
This has to be the very best explanation on significant figures.
Thanks a lot. Sharing one's knowledge never fade up, you have uploaded this 8yrs back and now am getting used of it. Love the way of ur teaching ❤️
Thank you so much Taylor, I look around alot of video which doesn't solve my question except yours! You are gifted with chemistry and explaining , you are a hero to save my chemistry.
Finally a video where someone explained the IDEA of sig figs! -- A Chem teacher looking for support materials for students
Very well explained- this helped me understand this concept immediately. Thanks so much, and please continue to make videos.
I have a question, hehe, I've been thinking, let's say you have a big piece of land, and by some reason you want to put 3 division pieces of 3 meters, you have a ruler that can only meassure one decimal of meter, so you meassure 3.0m. So now you multiply 3.0*3 and you get 9.0m right, same precision you begin with, but now that you see that it will only take 9.0m you say, well, I rather make 4 division of 3 meters, so again you multiply 3.0m *4 and now you end up with 12, but, you can only have 2 significant figures, so your result is actually 12.m not 12.0m, but if you instead of multiplying you make the sum, you end up with 12.0m, so what to do?
I mean from your instruments 12.0 is doable and with the same precision as your instruments.
Or lets say you have a land of 12.0m and you want to divided in 5 pieces, , now you have a by significant figures, 4.00m but that is way more precise than your instrument, but you have 3 significant figures just as the one you begin with.
Or in your very example you end up with 2.0 grams per cc, but that .0 is more precise than your instruments, that .0 you cannot know it, because your instruments cannot meassure a decimal of a gram.
This video is really very helpful for the students to understand the importance of significant figures. Thank you very much for posting this..Bless your heart..
Excellent explanation, and having lived in Manhattan in my 20s, nice nod to the city with the super precise directions!
Your explanation, it just makes so much sense. Thank you
That street corner analogy was beautiful, thanks for the lesson!
You explained it so simply but clearly. Thank you so much!
Thorough explanation. Impressive!
Words cannot express how much I love this video.
Thank you so much for this series, tyler. It helped me a lot. You are amazing teacher❤❤
What an amazing Explanation!! This concept I'm not able to understand since high school but now it's crystal clear.
Good explanation. Precisely what we needed. That's significant! Thanks.
I'm a teached. Watched the whole playlist of SF. You explain what an ambiguous numbers are, and adding them. Example: 7000 + 1
THANK YOU SO MUCH~!!! I HAVE BEEN SO CONFUSED ALL MY LIFE AND U CLEARED IT ALL FOR ALL OF US~!! SO VERY GRATEFUL~~!! I hope your days are easy and happy, Sir ~~!!
Hi Tyler, you are an awesome teacher and thank you for making all these videos! I only have one question about one of the words you used in this video. Why did you use the word precise instead of accurate? Based on the definitions of the two words, isn't it better to use the word "accurate" since the rocket laser scale can measure something closer to the actual value?
AGREE!
Omg Tyler. Thank you so much. I thought I was going to fail Chemistry after the first chapter! This helps so much because I read the chapter and was like: So the F What!
Thanks man, I have a summative tomorrow and I really need this.
You have a true soul of teacher
When we estimate mesurement uncertainty in chemical measurement the general rule is that we put the final answer in only either one or two significant figures. Are we being more conservative here because some of our measurements that we used may have only one or two significant figures while others may have more significant figures?
awesome tyler is the man! But question??? is accuracy a better term than precise for the locations downtown, since precision means close relative to other measures, whereas accuracy refers to close to true measure (like the actual location)? (which I learned from tylers other videos haha)
THANK YOU FOR TEACHING ME
You sir, are brilliant. Thank you so much.
Hey man, awesome video. So essentially the heart of the problem lies in the fact that in chem/physics we often measure things and it is basically impossible to get a measurement that is 100% correct right?
You are amazing sir, i have understood significant figures completely, that i was struggling with. Thanks a lot❤
Such an incredibly awesome way to explain concepts 👌! Hats off to you
the video is not working.. only audio?
this is really well explained video...you give us a veryy logical reasons why significant figures are important...thankyou sir..god bless you 😊
thank you this was really helpful and informative and clear straight to the point,helped me for chem class keep up the good good work 👍
That was an EXCELLENT example!
I understood the whole of the concept becoz of just that one real life example.....do try to include examples like these....makes us understand better! Thanks a lot! may gid bless you....
you're the Best maker understand guru or Teacher
Brilliant technique and amazing method.
such a brilliant video man. Keep 'em coming!
Precise or accurate ??
How many general chemistry students will mix up precise with precision?
I hate Sig Figs so much, I don't understand how it would be 2.0, since 2.0*42 gives you 84g instead of 82 if you're solving for g algebraically
where does one acquire a barbie science playset?
You're a saviour man, Thanks a lot
Checking in from ASU CHM114. Awesome video!
Anybody watching this in 2018 and wondering why he stopped uploading videos?
KayCee McQueen 2019 haha I remover I watched him 4 yeas ago, he’s very helpful
What is that train noise I hear in the background between 3:00 and 4:00?
Anna R. Neligan probably a train..?
I guess. I've watched some of his other videos recently and they have the same noise, so it must be a train that passes by at regular intervals.
Ooooooooh my gosh I've been so confused on why significant figures are important for so long and they've been so frustrating and this makes perfect sense
Ex: You would cut a floorboard at an estimate like 3.25 inches using the measurements on a ruler, not 3.2532419 inches.
why is it not okay if it doesnt make sense to use non significant figures in the final ans?
Super precise explanation...🔥🔥
Great and simple explanation.
This makes a lot of sense. Thanks for clearing it up.
Thanks !
Now I get the bigger picture, exactly what was missing in my puzzle.
Dr. Burger style for explaining things, great job !!!!!
How much time do you take to make one video with all those example and writen work .....u a the best!!!
It seems here the answer is one-decimal digit more precise than the dividend and the divisor. They both are precise to 7 places past the decimal. But shouldn't the answer be also?
really fantastic but by kids asked me how can i deal with 3 x 5 in terms of significant figures, i would be grateful if you tell me
I think these rules are useful only in dealing with measurements of limited precision, not abstract numbers in math. If you know you have exactly 3, that is the same as 3.0, 3.00, 3.00000 etc. You can set it to as many significant figures you need and do not need to round. So 3 x 5 = 15.
So if you measure 5.234 and want to multiply it by exactly 3, then 3 x 5.234 is actually 3.000 x 5.234 = 15.70.
When faced with illogical outcomes, like 3 x 5 = 20, the real problem is not with the process of using significant figures, but the low precision of the inputs.
Hi Tyler DeWitt! Thank you for posting this video it has cleared up a lot of misunderstanding for me. I do have one question, when we are doing problems in chemistry most of the time we are given the numbers for example the rock in your video how do I know if its a precise number or not? Am I over thinking this?
Awesome explanation!
THANK YOU, YOU ARE AN AMAZING TEACHER!!!
Awesome, Sensei keep up the good work
Thanks for making this video. Super Awesome Explanation
So superbly explained!! Thank you very much for this video....