I think the best part of online learning is that you could always go back to it and repeat it. When I ask my physical human teacher the rules again, she gets pissed and gives us a 7 minute lecture on listening, college, and jobs.
I agree with you! TH-cam videos are far superior to the traditional classroom. With youtube, you have available to you the best teachers anywhere in the world; and most for free. Regular brick-and-mortar schools will eventually fade away, and all of those bad teachers will be unemployed; only the best will survive and they will be online. What really irritates me is the world in general has accepted someone having a degree as the credential for being considered a teacher; the real credential should be their teaching ability.
@korleonis this might sound clichéd, but your story is inspiring. i wish you all the best in your journey, and i'm honored to have helped with one step of it.
@Scientia96 absolutely not. it equals 16,000,000,000,000. it's just that only the 1 and 6 are significant figures, so you'd say the number 16,000,000,000,000 has only 2 significant figures, even though it has a heck of a lot of zeros. just because some zeros aren't significant, that doesn't mean you just remove them and turn 32,000 into 32, or take 500,000 and turn it into 5. in the video, i never say to DELETE the non-significant zeros, i just say how to tell if a zero is significant or not.
@DirtyLiLSecret06 one of the tricky things about sig figs is that the rules can vary. so if you read about sig figs in five different textbooks, the rules would be a little different in each one. the best thing to do is ask your teacher what exact rules they want you to use, and then stick to those. if you want more information about the ambiguous zeros with an implied decimal point, check out my video "scientific notation and significant figures."
I’d just like to say, thank you so much! I have a chemistry test tomorrow and this was gonna be on it and I was panicking bc I was still having trouble, but you have seriously helped me, thank you so much!
thank you man . the concept is crystal clear . now i have to remember few simple rules before facing any type of problem . 1) all non-zero digits are significant regardless of their position wrt decimal point . 2) all zeros left to the leftmost non-zero digit are non-significant. 3) all zeros to the right of the rightmost non-zero digit : i) significant , if there is a decimal point in the provided number . it can be anywhere . it can be between those zeros , it can be to extreme right to all those zeros, it can be at extreme left to all those zeros. ii) insignificant , if there is no decimal point in the provided number . simple as that . thanks man .
5:00 This is slightly confusing to me for a couple of reasons. Here is what have learned in the past about numbers and decimals: When we look at 85,000 as a number although there isn't a decimal written, it's still technically there so 85,000 is actually also the same as 85,000.0 In addition to this the amount of zeros that follow after a decimal are endless so we just don't actually write them all in. 85,000.0 is exactly the same as 85,000.0000000... So with that being said Wouldn't 85.000 be the same as 85.000000000000000000000000000? And that being said wouldn't the Significant numbers also be endless in this case?
Tyler, bless you! My son has a horrible Chemistry teacher (10th grade Chem 101, non-honors) and my son has not been able to understand significant figures. Your lessons made it a snap to understand!
Hey guys I got a nice trick to help with sig figs Imagine the number as a country of USA. Pacific on the left, Atlantic on the right. Then ask yourself, is the decimal Present, or Absent? If the decimal is (P)resented, then go to the (P)acific side, read from left to right until you hit a non-zero number, and then count. If the decimal is (A)bsent, then go to the (A)tlantic side, read from right to left until you hit a non-zero number, then count. Decimal itself is not considered to be part of sig fig counting.
Every single one of my science teachers have been superb, but I always seem to zone out and i'm often lost about what's going on in class so i'm so grateful to have videos like these were a can pause and replay.
I can't tell you how much this helped me. I got an A on my test all thanks to your videos. Your explanations are superior to most private school teachers! Thank You So Much!!!!
dude, i'm taking up transport processes, advanced math, strength of materials, thermodynamics, dynamics, physical chemistry...and you know what? your videos help a lot! even the most basic lessons are so helpful dude! thank you very much! I'm gonna subscribe now! by the way, your video on ideal gas law, brilliant! thats flawless man. XD
Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.
@erusphere absolutely! good catch. but i lied a little bit on purpose (by saying 16 instead of 20) in order to directly answer the question they asked.
(Read this for instant IQ 😃) 1. Zeroes that are inbetween non-zero digits are counted as sig figs. This is also applied for decimals. 2. Zeroes that come to the right side are also counted aa sig figs. 3. Zeroes that are in the left side are not counted as sig figs. 4. Do not include the number of zeroes if it's in the left side or not inbetween or not on the right side. Follow these and you'll become an significant master.(Like me 😎)
what does the decimal have to do with anything I though 83,000 was the exact same as 83,000. with a decimal. my perception of reality has been shattered isnt there always a decimal after a whole number, just without reason to specify.
+Nick K. As I understand it, the decimal indicates that the number was measured to the accuracy of one tenth of a unit (if there is one zero after the decimal), or measured to the accuracy of one hundredth of a unit (if there are two zeros after the decimal), and so on. Whereas, if the number is listed without any decimal points, then there is no indication of how accurate that measurement is. This has to do with the difference between our theoretical numbers on paper, and the actual accuracy of these numbers in real life. Significant figures are usually used when it comes to measurements of things in real life. Sometimes we don't need to be accurate beyond saying that the length of this object is 11 feet or 15 cm; in other times, when we're talking about parts of a space rocket or parts of a robotic camera that enters the human body, we would need to say that the length is, for example, 0.35 inch or 1.8075 cm, and both instantly indicate how "accurate" these measurements are compared to, say, 15 cm.
Maria Ruiz What is confusing to you? Remember that significant figures rules are a special way of doing math calculations, that you only use when you're doing math with numbers you measured, like with a scale or a ruler or something. Did your teacher tell you this? So you only use these rules like for calculations using numbers from a lab experiment or something. This video might help you get a better understanding of why we use significant figures, and why they're important: th-cam.com/video/VAuslY-Uuf4/w-d-xo.html
2022 (12 years after post) and my teacher assigned us to watch these videos These are seriously helpful and easy to understand when first learning this!
T DeWitt is doing an excellent job. I've been using his recordings for my physics classes for quite a while now. Starting at around 2:00, he says correctly that zeros before (or to the left) of non-zero digits are not significant. But they are important "placeholders" because without them the number wouldn't be the same (hence don't cross them out).
OH MY GOD AGAIN! I had to stop the video again and say thank you so much! haha! You're such an amazing teacher i would pay anything to have you as my teacher..
I know this is a bit old of a video but I really respect you, thanks a lot for this. I'm in Inorganic Chem. and our professor has a thick accent and I had no idea what she meant by all of this, but you make it extremely simple. Thanks again.
Well I don't have a problem comprehending math but if there is a person who teaches like this guy it will make it much more simpler he explains it better than most teachers , this is the way to teach students a particular material , don't go trough the entire material without examples like most teachers,professors do it like this guy here (Tyler) teach every step of the way of the material with a lot of examples , go trough the material slowly with a lot of examples so more people can comprehend it
I agree the significant figures rules can be a real pain. I made a video to explain why significant figures are important, and how we came up with the rules: Why are Significant Figures Important?
First of all, Chill. Second of all, I see where he's coming from, and you should try to as well. He doesn't want to just memorize the rules and know when a zero is considered significant or not, he wants to understand why, and so far this video isn't helping at all. Significant it what way? why would the zeros before 0.0005 be insignificant? they have a vital role in determining the amount in front of us! if you took them away, it would be five, and 5 does not equal 0.0005. Don't get pissed because someone doesn't understand. The point is that someone wants to understand, and if they're trying to you should support them.
Thank you so much! I'm in honors chemistry and have cried two days in a row because I don't get this stuff! I'm starting to have some understanding now!
Could you make a video showing how to round with significant figures? I have a summer assignment for AP chemistry next year however I'm not quite understanding the notes she gave us. Thank you! Your videos are so helpful!
At 2:14 the term for “Zeroes that come before all non digits are never significant” are called leading zeroes. If you didn’t understand what the guy said then I’ll explain it when a zero is in front of a number that doesn’t have a number that is 1 to 9 between it or behind it they do not count. Ex 0.14530 the 0 after the decimal does not count because there is no number that is 1 to 9 in front of the 0 so if there was a number in front of it then it was count as a sig fig so there are 5 sig figs not 6.
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I think the best part of online learning is that you could always go back to it and repeat it. When I ask my physical human teacher the rules again, she gets pissed and gives us a 7 minute lecture on listening, college, and jobs.
I know, I really hate that!
Nice Username! and I totally agree with you!
I agree with you! TH-cam videos are far superior to the traditional classroom. With youtube, you have available to you the best teachers anywhere in the world; and most for free. Regular brick-and-mortar schools will eventually fade away, and all of those bad teachers will be unemployed; only the best will survive and they will be online. What really irritates me is the world in general has accepted someone having a degree as the credential for being considered a teacher; the real credential should be their teaching ability.
No Good Usernames Left Very true and Yeah. Nice name
Recording helps with that! Haha 3 years later;)
@korleonis this might sound clichéd, but your story is inspiring. i wish you all the best in your journey, and i'm honored to have helped with one step of it.
Thank you very much, but I hope you will add Arabic subtitles for the videos
Thank you
this dude has helped me so much. I missed class and I was so lost and now I basically understand it 100%
2:46 When the teacher is reading out your previous test grades
Curry McFlurry lmaooo
This was so easy to understand . Why is my teacher so bad at teaching
Splash Alert I guess u r right😜😜😜
heh
ant mistaken
Splash Alert like me
👍..yah
dude sameee!! this guy saved me in college chem haha
and i also learned from this video that my chemistry teacher sucks at teaching.
IT IS 2019 NOW AND YOUR VIDEOS ARE STILL HELPING US! THANK YOU SO MUCH :)
Alondra Coronado ikr
RIGHT. I've been struggling with this since my sophmore year of hisghschool and BAM now I understand it!!
update: 2020 and he's still helping
@@Outcaaast update: 2023 and hes still helping
Updat
i learned 10x more in this 7 minute video about significant figures than my physics teacher has in three days
same here hahahah
Same :) r u alive
@Scientia96 absolutely not. it equals 16,000,000,000,000. it's just that only the 1 and 6 are significant figures, so you'd say the number 16,000,000,000,000 has only 2 significant figures, even though it has a heck of a lot of zeros. just because some zeros aren't significant, that doesn't mean you just remove them and turn 32,000 into 32, or take 500,000 and turn it into 5. in the video, i never say to DELETE the non-significant zeros, i just say how to tell if a zero is significant or not.
This guy helped many students graduate throughout the years. I salute you man.
@DirtyLiLSecret06 one of the tricky things about sig figs is that the rules can vary. so if you read about sig figs in five different textbooks, the rules would be a little different in each one. the best thing to do is ask your teacher what exact rules they want you to use, and then stick to those. if you want more information about the ambiguous zeros with an implied decimal point, check out my video "scientific notation and significant figures."
I know right
I’d just like to say, thank you so much! I have a chemistry test tomorrow and this was gonna be on it and I was panicking bc I was still having trouble, but you have seriously helped me, thank you so much!
THANK YOU! Your videos are going to help me so much with Chemistry! Thank you for taking the time to make these!
Would have never passed my chemistry class without these videos,thank you sooo much!!
This helped me sooooo much for my midterm, you're a lifesaver! Thank you :)
Lameeee😎
Just kidding.
Listened to alot of online chem teachers but your by far the only one that actully makes sence to me! Thank you!
You are so good at explaining things. I have a Chem exam tonight, thanks.
2022 and yer channel literally clears a lot of my doubts, Thankss
Love how this man does this better than someone paid hourly to teach this 10/10 video made this so damn easy
I missed it alot of years, now it makes sense. You did a good job Man. Thank you!
thank you man . the concept is crystal clear . now i have to remember few simple rules before facing any type of problem .
1) all non-zero digits are significant regardless of their position wrt decimal point .
2) all zeros left to the leftmost non-zero digit are non-significant.
3) all zeros to the right of the rightmost non-zero digit :
i) significant , if there is a decimal point in the provided number . it can be anywhere . it can be between those zeros , it can be to extreme right to all those zeros, it can be at extreme left to all those zeros.
ii) insignificant , if there is no decimal point in the provided number .
simple as that . thanks man .
5:00 This is slightly confusing to me for a couple of reasons. Here is what have learned in the past about numbers and decimals:
When we look at 85,000 as a number although there isn't a decimal written, it's still technically there so 85,000 is actually also the same as 85,000.0
In addition to this the amount of zeros that follow after a decimal are endless so we just don't actually write them all in. 85,000.0 is exactly the same as 85,000.0000000...
So with that being said Wouldn't 85.000 be the same as 85.000000000000000000000000000? And that being said wouldn't the Significant numbers also be endless in this case?
Tyler, bless you! My son has a horrible Chemistry teacher (10th grade Chem 101, non-honors) and my son has not been able to understand significant figures. Your lessons made it a snap to understand!
Mcat study in 2019 this dude still the best teacher.
Hey guys I got a nice trick to help with sig figs
Imagine the number as a country of USA. Pacific on the left, Atlantic on the right.
Then ask yourself, is the decimal Present, or Absent?
If the decimal is (P)resented, then go to the (P)acific side, read from left to right until you hit a non-zero number, and then count.
If the decimal is (A)bsent, then go to the (A)tlantic side, read from right to left until you hit a non-zero number, then count.
Decimal itself is not considered to be part of sig fig counting.
😂
Every single one of my science teachers have been superb, but I always seem to zone out and i'm often lost about what's going on in class so i'm so grateful to have videos like these were a can pause and replay.
Bruh, I have spent literal hours trying to figure this out and my man from 10 years ago somehow helps me in 7 minutes :O
I can't tell you how much this helped me. I got an A on my test all thanks to your videos. Your explanations are superior to most private school teachers! Thank You So Much!!!!
dude, i'm taking up transport processes, advanced math, strength of materials, thermodynamics, dynamics, physical chemistry...and you know what? your videos help a lot! even the most basic lessons are so helpful dude! thank you very much! I'm gonna subscribe now!
by the way, your video on ideal gas law, brilliant! thats flawless man. XD
@streetmelvin you're right on both of those, but be sure to watch the video all the way through; i explain how to problems just like those.
Yes
What a teacher are you sir???? I salute you sir....
12 years later and this is still helpful
You're better than my teacher already. The way he explained it today was harsh. Everyone have a good year!! Thanks Tyler :)
@karousel5 zeros to the right of a decimal ABSOLUTELY count ALL the time.
God bless you, I hope this man knows he’s still helping people out 12 years later
This man helped a lot of students for 10+ years now
Still helping ppl 12 years out for working professionals going back to school! This man has a gift period!
Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.
@erusphere absolutely! good catch. but i lied a little bit on purpose (by saying 16 instead of 20) in order to directly answer the question they asked.
You’re such a thorough and awesome teacher, if only there were more professors that can teach like you!
(Read this for instant IQ 😃)
1. Zeroes that are inbetween non-zero digits are counted as sig figs. This is also applied for decimals.
2. Zeroes that come to the right side are also counted aa sig figs.
3. Zeroes that are in the left side are not counted as sig figs.
4. Do not include the number of zeroes if it's in the left side or not inbetween or not on the right side.
Follow these and you'll become an significant master.(Like me 😎)
Rule no. 2, you forgot to add [ONLY IF THERE IS A DECIMAL]
what does the decimal have to do with anything I though 83,000 was the exact same as 83,000. with a decimal. my perception of reality has been shattered
isnt there always a decimal after a whole number, just without reason to specify.
+Nick K. As I understand it, the decimal indicates that the number was measured to the accuracy of one tenth of a unit (if there is one zero after the decimal), or measured to the accuracy of one hundredth of a unit (if there are two zeros after the decimal), and so on. Whereas, if the number is listed without any decimal points, then there is no indication of how accurate that measurement is. This has to do with the difference between our theoretical numbers on paper, and the actual accuracy of these numbers in real life. Significant figures are usually used when it comes to measurements of things in real life. Sometimes we don't need to be accurate beyond saying that the length of this object is 11 feet or 15 cm; in other times, when we're talking about parts of a space rocket or parts of a robotic camera that enters the human body, we would need to say that the length is, for example, 0.35 inch or 1.8075 cm, and both instantly indicate how "accurate" these measurements are compared to, say, 15 cm.
My chemistry teacher is making us watch the whole playlist, and I've never been so confused in my life!
Maria Ruiz What is confusing to you? Remember that significant figures rules are a special way of doing math calculations, that you only use when you're doing math with numbers you measured, like with a scale or a ruler or something. Did your teacher tell you this? So you only use these rules like for calculations using numbers from a lab experiment or something. This video might help you get a better understanding of why we use significant figures, and why they're important: th-cam.com/video/VAuslY-Uuf4/w-d-xo.html
+Tyler DeWitt thank you so much!
+Maria Ruiz ohhhhhhhhh
I prefer to watch him speak about this than my Chemistry teacher speaking about this since he does a thorough job explaining
Kadir Hizarci stfu you Islamic Russian hacker.
I love him, still helping me after 10 yrs
@Sunzi15 watch my video called "significant figures and scientific notation" to learn how to do that.
I learnt more from you than I did from my teacher!! Tyler you are a blessing!
10 years later these videos are still helping people pass chemistry
please keep making more educational videosss. you have answered all the questions in my head. you're better than our teacher! you're a life saveeeerrr
2022 (12 years after post) and my teacher assigned us to watch these videos
These are seriously helpful and easy to understand when first learning this!
This guy is better than my teacher
T DeWitt is doing an excellent job. I've been using his recordings for my physics classes for quite a while now.
Starting at around 2:00, he says correctly that zeros before (or to the left) of non-zero digits are not significant. But they are important "placeholders" because without them the number wouldn't be the same (hence don't cross them out).
OH MY GOD AGAIN! I had to stop the video again and say thank you so much! haha! You're such an amazing teacher i would pay anything to have you as my teacher..
bro you really saved me in chemistry. I really appreciate your tutorials and I wanted to say thanks!
I know this is a bit old of a video but I really respect you, thanks a lot for this. I'm in Inorganic Chem. and our professor has a thick accent and I had no idea what she meant by all of this, but you make it extremely simple. Thanks again.
THANK YOU.
You are much more helpful than my lebanese chemistry teacher!!
this guy helps so much to learn
I've learned more from these videos than sitting in my teachers room for eighty minutes... THANK YOU
This helped me a lot. I have an exam in chem tomorrow and now I finally understand this
I’ve been out of college since 2003 and decided to go back..you are literally saving my butt in my chemistry class 😂
He teaches this way better than my chemistry teacher. Thanks!!
Broooo, thank you for sharing this! It helped me a lot today for my Chem exam!
he’s such a good teacher damn
Hey....could you pls tell me which class is he teaching?
i think i've binged almost every single one of this mans videos and it's the only way i've been able to learn. thanks Sutherland :'(
Hey buddy
Could you pls tell me which class is he teaching ?
I’ve just started my chemistry class and this has helped me so much, thank you!
Hey hii could you please tell me which class is he teaching?
+Tyler DeWitt thank you so much. I am so happy that you taught this so simply. I was completely lost until I found your videos.
You make it so easy to understand. My Physics teacher makes it so complicated, gosh, I wish you were my teacher. :D
Thank you so much! Just started high school and you're helping me not fail engineering!
what great teaching! i love how you provide more than 1 examples and even role plays in some of your videos.
Well I don't have a problem comprehending math but if there is a person who teaches like this guy it will make it much more simpler he explains it better than most teachers , this is the way to teach students a particular material , don't go trough the entire material without examples like most teachers,professors do it like this guy here (Tyler) teach every step of the way of the material with a lot of examples , go trough the material slowly with a lot of examples so more people can comprehend it
I hope this man knows he is still helping people out 11 years later
Lol, TH-cam teaches me more than school
If it wasn't for your videos, I would be seriously flunking General Chemistry in college. Thank you!!
This makes no sense, who the hell came up with these rules?
I agree the significant figures rules can be a real pain. I made a video to explain why significant figures are important, and how we came up with the rules: Why are Significant Figures Important?
First of all, Chill. Second of all, I see where he's coming from, and you should try to as well. He doesn't want to just memorize the rules and know when a zero is considered significant or not, he wants to understand why, and so far this video isn't helping at all. Significant it what way? why would the zeros before 0.0005 be insignificant? they have a vital role in determining the amount in front of us! if you took them away, it would be five, and 5 does not equal 0.0005.
Don't get pissed because someone doesn't understand. The point is that someone wants to understand, and if they're trying to you should support them.
so agree
Anonymous Anonymous then you try explaining it
Someone who thought of themselves as significant.
OMG I was struggling so hard with sig figs! But after watching this I can honestly say I understand! Thank you so much! You're videos are amazing!!
Still helping me out 10 years later
Yeah 😊
You explain this way better than my teacher thank god. Grade saver
lmao imagine being on 1.2, and waiting 2 years later to get 1.3, thank god I'm in 2019, you're a life saver
I finally understood significant figures 😂 Thanks, Tyler! Gotta see all your videos for my test tomorrow. Goodluck to me.
chem test in 20 minutes pray 4 me
2020 and I have watched so many of your videos. I actually like chemistry now! Thank you :)
Your way of teaching is unique
This is amazing, my teacher just gave us a packet and told us to do it- thank you!!!
😃
Thank you so much! I'm in honors chemistry and have cried two days in a row because I don't get this stuff! I'm starting to have some understanding now!
Could you make a video showing how to round with significant figures? I have a summer assignment for AP chemistry next year however I'm not quite understanding the notes she gave us. Thank you! Your videos are so helpful!
bro these videos make it so easy!!!😭
These lectures clear all my confusion. .thanks sir
At 2:14 the term for “Zeroes that come before all non digits are never significant” are called leading zeroes. If you didn’t understand what the guy said then I’ll explain it when a zero is in front of a number that doesn’t have a number that is 1 to 9 between it or behind it they do not count. Ex 0.14530 the 0 after the decimal does not count because there is no number that is 1 to 9 in front of the 0 so if there was a number in front of it then it was count as a sig fig so there are 5 sig figs not 6.
You are the best. Your videos on significant figures were very helpful. Thank you so much.
Talk about a throwback 🥺 love this guy! i learn so much!!
I hope he knows hes helping people 13 years later! THANK YOU
you are in your 30s and you need lectures on basic math
At 1:10 the 2 zeros aren’t sandwiched they are trailing so they are significant if anyone is confused with it.
thank you so much for helping me recall everything i forgot over the course of summer
First chemistry test tomorrow ty for this video
@x69Crunchyx exactly, yes.
This helped me a lot for my test. Thank you very much!
Your videos are the only reason I’m passing chemistry 💀. Thank you.
Who's holding it down in 2018?? These videos are so helpful!
you are amazing at teaching!
You Know what???? you are wonderful person that explains lessons to me...Thank you Dude ^_^
Thanks for actually making this make sense to me- you have saved my homework grade.