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.
@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.
@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."
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.
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!
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.
@thejudyandthejudy123 i'm sorry about that. all i can say is that your teacher made up the rule himself, and i don't know of anyone else who uses it. but obviously, follow his rules so that it doesn't hurt your grade. it might help if you watch my video "scientific notation and significant zeros," where i talk about some other ways to deal with zeros.
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
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.
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.
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!
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
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!
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!
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 .
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 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;)
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
this dude has helped me so much. I missed class and I was so lost and now I basically understand it 100%
@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
and i also learned from this video that my chemistry teacher sucks at teaching.
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
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
@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.
@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.
@Sunzi15 watch my video called "significant figures and scientific notation" to learn how to do that.
@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
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.
@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
@dalo3a2 yes, that's exactly right.
THANK YOU! Your videos are going to help me so much with Chemistry! Thank you for taking the time to make these!
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!
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.
😂
Listened to alot of online chem teachers but your by far the only one that actully makes sence to me! Thank you!
This guy helped many students graduate throughout the years. I salute you man.
@x69Crunchyx exactly, yes.
I missed it alot of years, now it makes sense. You did a good job Man. Thank you!
12 years later and this is still helpful
Would have never passed my chemistry class without these videos,thank you sooo much!!
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.
This helped me sooooo much for my midterm, you're a lifesaver! Thank you :)
Lameeee😎
Just kidding.
@thejudyandthejudy123 i'm sorry about that. all i can say is that your teacher made up the rule himself, and i don't know of anyone else who uses it. but obviously, follow his rules so that it doesn't hurt your grade. it might help if you watch my video "scientific notation and significant zeros," where i talk about some other ways to deal with zeros.
You’re such a thorough and awesome teacher, if only there were more professors that can teach like you!
What a teacher are you sir???? I salute you sir....
You are so good at explaining things. I have a Chem exam tonight, thanks.
Thank goodness for these videos!!! Thank you for breaking it down! THis helped more than anything else.
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
Love how this man does this better than someone paid hourly to teach this 10/10 video made this so damn easy
what great teaching! i love how you provide more than 1 examples and even role plays in some of your videos.
+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 are the best. Your videos on significant figures were very helpful. Thank you so much.
2020 and I have watched so many of your videos. I actually like chemistry now! Thank you :)
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 learnt more from you than I did from my teacher!! Tyler you are a blessing!
2022 and yer channel literally clears a lot of my doubts, Thankss
my prof said if theres a $ sign then all the numbers are significant regardless, is this true with measurements (oz, lbs) as well?
bro you really saved me in chemistry. I really appreciate your tutorials and I wanted to say thanks!
You're better than my teacher already. The way he explained it today was harsh. Everyone have a good year!! Thanks Tyler :)
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
Talk about a throwback 🥺 love this guy! i learn so much!!
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.
This man helped a lot of students for 10+ years now
Thanks again. Your videos are timelessly helpful.
Thank you so much for posting these videos here. They are VERY helpful.
Mcat study in 2019 this dude still the best teacher.
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!!
Broooo, thank you for sharing this! It helped me a lot today for my Chem exam!
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.
Perfect, just had to review this for AP Chem that just started up thanks!
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!
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!!!!
Thank you so much! Just started high school and you're helping me not fail engineering!
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
Very well done Tyler!
Thank you so much for your time and passion in chemistry!!!!
I’ve been out of college since 2003 and decided to go back..you are literally saving my butt in my chemistry class 😂
God bless you, I hope this man knows he’s still helping people out 12 years later
I'm sure glad this video was here. thank Tyler.
Still helping ppl 12 years out for working professionals going back to school! This man has a gift period!
Thank you ! your videos is very helpful to me ,now that i am going back to school. very simple in the way you explain.
I finally understood significant figures 😂 Thanks, Tyler! Gotta see all your videos for my test tomorrow. Goodluck to me.
These lectures clear all my confusion. .thanks sir
You make me understand very well about chemistry. I wish if you make videos about entropy, enthalpy, free energy, and rate law
you are an amazing teacher.This video helps me a lot.Thank you
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!
Man I love ur videos. So easy to understand
So helpful!!!! I did not understand this in class at all thanks for clearing up the zero thing.
@karousel5 zeros to the right of a decimal ABSOLUTELY count ALL the time.
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!
This helped me a lot for my test. Thank you very much!
your soooo awesome! i now understand completely! :)
I'm going to do grate on that test tomorrow!
I love him, still helping me after 10 yrs
It is really helpful. Thank you.
Thank you so much for this series.
thank you so much for helping me recall everything i forgot over the course of summer
i appreciate this so very much!! I was so confused but i get it a lot more. thank you so much!
Thank you, Sir. Your tutorials have been a GREAT benefit to me ;)
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?
This is so helpful! You are a great teacher!
bro these videos make it so easy!!!😭
this is so helpful for me,thank you.I hope you can help other students
Thanks so much. You're a born teacher. I really got the lesson
Thank you so much! You made it so easy!
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 .
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).
Thank you for clarifying this for me!
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..
Thank you so much for this! This is much easier to understand.
you are amazing at teaching!
He teaches this way better than my chemistry teacher. Thanks!!
Thank You for helping me in my last semester of college!!
thank you for this video! your an angel!
Thank you,you helped me ace my pre ap chem test
watching this in 2019! extremely helpful. thank you!!
helped a lot. Thank you Tyler DeWitt