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Let's Do Math
Canada
Registrace 25. 03. 2011
Let's talk about the elephant in the room. Many people hate math. If you have repeated negative experiences with it, you'll end up feeling that way; it's a reasonable response, but it's NOT helpful. Not now, and not in the longrun. On this channel I'm here to help learners of ALL ages.
I like making animations and I'm not good at talking to a camera, so I use animation because it's a NO-stress way to show you the math. I encourage you to make links to stuff you already know. I never talk down to you, I won't baby you and I will always do my best to help you succeed. No matter what your age is!
I'll show you multiple strategies to think through math that will help you get past your stumbling blocks. You really CAN do it, but it's going to take PRACTICE, and I want you to commit to that
The more you practice, the easier it gets, and the more confident you will become!
To help you even more, I now have a website, letsdomath.ca where you will find all my videos and practice work too!
I like making animations and I'm not good at talking to a camera, so I use animation because it's a NO-stress way to show you the math. I encourage you to make links to stuff you already know. I never talk down to you, I won't baby you and I will always do my best to help you succeed. No matter what your age is!
I'll show you multiple strategies to think through math that will help you get past your stumbling blocks. You really CAN do it, but it's going to take PRACTICE, and I want you to commit to that
The more you practice, the easier it gets, and the more confident you will become!
To help you even more, I now have a website, letsdomath.ca where you will find all my videos and practice work too!
Video
Find a percent of an amount
zhlédnutí 19KPřed 2 lety
First lesson when you have to find a percentage of an amount. You've done a bunch of equivalents... from percent to fraction (and if not, please do it now). In this video we put that to use and start finding a percent amount. The method is not difficult, just follow the steps. You can ACE this stuff!
GCSE Compare & Order Fractions, Decimals & Percents
zhlédnutí 9KPřed 2 lety
I call this Boss Level comparing and ordering. You need to be switched on, and previously familiar with swapping between fraction, decimal and percent equivalents. 1. Fractions comparison and ordering that works through just making a new set of equivalents with a common denominator. Nice and straightforward, just a reminder of stuff you've already done. 2. Oooh, a stinky one... where you end up...
Multiply Bigger Numbers by a Single Digit (2)
zhlédnutí 10KPřed 2 lety
Students have been successfully putting regrouped tens digit below the answerline and have built up their confidence. Now they learn to put the tens digit up-top. Build a ton of confidence with that too, so students are in excellent shape for moving on to the standard algorithm for long multiplication.
Multiply by a single digit
zhlédnutí 20KPřed 2 lety
Now that students can recall their tables, it's time to multiply greater numbers. Many teachers will know that some students just don't GET putting the tens digit up top. They experience number dissociation - they lose the plot that this tens digit belongs with this ones digit. And what about the adding when they are working solo? Do they add it before they multiply? If this is all too familiar...
Percent Word Problems: 2 Step Solution and 1 Step Wonder!
zhlédnutí 6KPřed 2 lety
You've done some simple word problems finding a percent of a number. Now we're going to build on that, as you do at age 13 . The word problems in this video can be solved in 2 steps, or you can solve like the cool kids do, in a single step! In this video we compare methods to get to solution, and you will build the confidence and understanding to do this for yourself. You're going to love that ...
Find a Percent of an Amount Using the 1% method
zhlédnutí 23KPřed 2 lety
We don't all think the same way. Here's a way to work out a percent of an amount that many students find low-stress. After the 1% method is used and the solution found, I compare it side-by-side with what I usually use so students can see they amount to the same result. It's really important that students feel able to use the strategy they find most comfortable, and that everyone understands th...
Percent Word Problems, Decimal Percent
zhlédnutí 10KPřed 2 lety
You're going to get word problems (a LOT!) when it comes to percentages. Here's one about finding the amount of tax payable on a pair of jeans. And I'm extending it (so you can get extra marks for extra effort!) to show how much the jeans cost in the end. Even though the question only asks how much tax is payable. I also show you a problem with a decimal percentage. They are not going to stop y...
Rational, Irrational and Real Numbers
zhlédnutí 102KPřed 2 lety
At some point you are going to learn to classify and sort numbers as 'rational', 'irrational' and 'real'. The traditional math definition can be a bit of a stumbling block, so I take you through what it means here in this vid, along with examples so it sticks. And the great news is that you'll totally be able to manage this stuff! At the end of the vid you'll find a handy little T-chart (perfec...
2 Ways to find a Percent of an Amount
zhlédnutí 15KPřed 2 lety
Here's something kind of wonderful. You are not stuck with a single strategy to find a percentage amount! Today I show you how I think about it, and I am happy to use several strategies to move it right along, but I start by setting the percentage up as its fraction equivalent. If the fraction approach is not right (you'll see why that might be the case) I switch to our other equivalent form; t...
How to Turn Any Fraction into a Percentage
zhlédnutí 87KPřed 2 lety
This is a bit of understanding that is simple to master, just follow through the video with me and watch all the examples to get the confidence to totally BLAST any problems you get. This is a must-have skill. The practice exercises are underway and will be up later today (29July) on my website letsdomath.ca You are SO going to rock percentages!!
I got a Creator Award!!!
zhlédnutí 3,9KPřed 3 lety
Thank you to all my subscribers! Your subscriptions earned me an Award. Here it is! Thanks for the music for the intro. This is what I used: Your Intro by Audionautix is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/by/4.0/ Artist: audionautix.com/
How to find the right video... SUPERFAST!
zhlédnutí 29KPřed 3 lety
Like it says in the title... learn how to find what you need in my videos as quick as possible. And get some cool extras on the way that will help you learn even faster! Music: Fun in the Sun by Chris Haugen (from CZcams's free-to-use music collection). Thanks for posting this, Chris!
Estimate a Percent Amount
zhlédnutí 16KPřed 3 lety
Being able to make a solid estimate of a percent amount is an important skill. You'll get problems requiring this with diagrams and numbers, and you need to be practiced and ready to go. This video shows you different ways of thinking. Get used to applying thinking rather than rote method. What suits your problem to get the best estimate? Practice exercises are in the Percentages section on let...
I get to 100k...TWICE!
zhlédnutí 3,6KPřed 3 lety
You can imagine how it feels to finally get to 100k. Anyway, this little vid shows the subs count from 99 997 to 100 000. Thank you so much for your support, for subscribing and watching, for sending your comments and suggestions. I appreciate all of it, and I hope you'll stick with me as I continue to add new videos to the channel, and new practice exercises to help you build your math muscle,...
You Really Can ACE Scientific Notation!
zhlédnutí 2,9KPřed 3 lety
If this stuff had your head in a spin previously, don't sweat it anymore! I lay this out for you in a way you CAN get, and you WILL succeed once youv'e seen the WHOLE of this video. Starts with a review of part 1: positive exponent, Works through zero and negative exponents, and you are SO going to get this stuff! There's companion work on the way at letsdomath.ca
Im in grade 5
Can u explain how does it work for 54? I tried but I didn't get it
54 is not too bad because it’s only 2 digits. Forgive the lack of division symbol as go through this for you. I’m on my phone and I don’t know how to get that on my phone keyboard. 🥴😬 Let’s try it a different way. We can just list the factor pairs. We know we are going to start with 1, right? So 1x54 Imagine our page in 2 sides: on the left I’m going to write the paired factors and on the right, any working out we need to write down to help us. So we have started with 1x54. 54 is an even number so you know 2 is a factor. In the right, work out 54 divided by 2… 27 On the left write 2x54 I know 3 is going to be a factor because the rule of divisibility for 3 tells me: add digits together, if the sum is in 3x table, 3 is a factor. On the right, do 54 / 3. We get 18 On the left we put 3x18 Does 4 work? Check it on the right. 54 / 4… 13.5, remainder means not a factor. You know 5 is not a factor because everything divisible by 5 ends in 5 or 0. What about 6? Well of course we know that 6x9=54 So we write that on the left too. The left hand side of the page looks like this: 1x54 2x27 3x18 6x9 Now to ace the problem, because above we have done all the work, next we just collect those factors and list them in ascending order. I like to write this under my paired factors on the left: Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54 Yes, I could have used the prime factorization method, but when you are just starting out on this sort of problem, this factor pairing approach I just went through for you will make much more sense. Actually, now you know what the factors are, you could explore the prime factorization method too if you want. 54 is from 6x9 PF of 6=2x3, PF of 9=3x3 Can you start to see how multiplying all possible combinations will get you to this factor pairs we got? The prime factorization method is better for a) you know what you’re doing with prime factorization (you’ve already done a bunch and are fully confident) and b) your teacher has given you some horrible number that you are completely stuck on and told you to use Guess-and-check to find all the factors. I once observed a teacher do this to a class of grade 7 kids who started out well but became more dejected and down on themselves as the time went on and the teacher did nothing to help them. So I came up with this strategy as a Save-All. The prime factorization method is just one strategy, and as you know there are different strategies you can use in math to arrive at your answer. Use factor pairs like I showed you, you’ll do great! 🤗😃🥰
38115 it divisible by3
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Help (っ˘̩╭╮˘̩)っ🆘
what abot 126053 you would thinks its prime but its factors are 233 and 541 . this is a problem i've face in my exams
nice
this video really helps more than any other videos out there. tysm!
Glad to help you make sense of it. 😉😃
omg hello i didnt expect you to reply to this comment also your vids are very simple and easy to understand :D
@kulblox If I see a comment, I reply. There used to be a lot more interaction with viewers, but then YT forced most of my vids to be classified as ‘for children’, which means comments are not allowed.
@@LetsDoMath ohh ok i get it !
Hi miss steel I don’t know to write in English but I trying to write thank you for the video I know now how to solve it and you helped me thank you ❤
You wrote perfectly! Thank you for your note. I am happy to help and very happy that you are confident with this type of problem now. Way to go! 😃🤗🥰
Really i appreciate u do more videos let it help everyone🎉❤
Isn't is crazy that some people charge to teach this But.. the students are saved by these kind of generous u tubers making vids that really hepls us! Thanx❤
What if one of your prime factors appear more than once on your factor tree?
This method is very good nice
Just subscribed! From India, I was not enough confident in LCM even I am in 8th Grade, but you thought it very well!!❤
This video thought me rational and irrational numbers so quick and easy.
Glad to help
I am in class 11 th but i am struggling in that 😂😂 thanks for the video😊😊
congratulations!! you fully deserve this huge milestone! your maths videos are just amazing to say the least <3 stay safe!!
This is still confusing 😢
I think if you model one for yourself on paper, it will make more sense. Even if you do my example, pause the vid and do each step before me then check your process. You can do this. 😃😉🤗
@@LetsDoMathI think I get it now!thanks!.
@teresasdrawingchannel718 wonderful! The main thing with learning any new bit of math thinking or process is to come at it with a mindset of ‘I can get this, it doesn’t matter if it takes me a few goes’. Don’t give up, get in there and try. Once you engage with it, I believe you’re always going to meet with some level of success, and that’s your starting point to build from. Getting your hands dirty is always the way to go - we learn by watching, doing alongside, then doing for ourselves. You GO, Teresa! 🤗😃🥰
🦧
This video was very helpful 🥰 Thanks ❤❤❤
What about 891...i have been stucked at combination.... because the multiple are 3 3 3 3 and 11..now how to combine them please suggest me ..🙏
Hi there. Only just seen your note come up. I made a second vid on this technique - using repeated primes. That will shed a lot of light for you. I realise it’s later than you needed. Sorry about that. 🥹🤗
got my test tomorrow wish me luck guys!
Best of luck! Keep calm and think clearly before answering - don’t rush it. 😃
What a method! This is INCREDIBLE!!! Thank you so much
Take a look at the second one too, with repeating primes as part of the decomposition. Tbh, I don’t know that we need this very often. I came up with this method in answer to the really horrible times when I’ve seen a class be told to find all the factors using ‘guess and check’. That approach is disheartening for me, never mind seeing kids’ confidence get crushed that way! We want to enable kids as mathematicians, not leave them feeling unable to do it, or even find a way n to start beyond crappy guess n check!
Ah😫I am confused and tomorrow is my test😫
What level/grade is the test? Knowing this will help me guide you in my answer.
Good
Thanks 😃
Hey, I need help factorizing this beast of a number: 2,216,593,220,330,143 All I know is that it is the product of 2 primes.
How in the hell a CZcams video can explain this better than any teacher?
There's a living breathing person behind every YT video uk, and who knows maybe she "IS A TEACHER"
@a.k.2205 …and you know what? I am a teacher! 🤗😃🥰
@@LetsDoMath You teach well Miss teacher 🤭🥰
@@a.k.2205 😃
@@LetsDoMath I will be waiting for your friend request ma'am 🤭
Thanks a lot
why does she speak like shes talking to the mentally challenged 💀
I wanna thank you so much, you really helped me with my math problems.😁😆
Glad to help! 🤗😃
Very nice tip love the mini table
Very well defined
I am doing in5th
So what to do when the numbers in😢 the LCM are same
The mini table is really useful
What if i have the Height and the Length only ? How to find the width and the volume ?
Where did she get the 165 though?😅
How do you get the 6 and 5/5
Any number over itself = 1 whole. So for example 2/2=1, 5/5=1, 17/17 = 1. Why is that? Well you can read a fraction as so many (numerator) parts out of (so many parts) denominator. 2/2 means 2 parts out of a whole containing 2 parts. Therefore 1 whole. Whatever the fraction is that you have to subtract, you simply make 1 whole from that same denominator and obviously the same value as the numerator and reduce your whole number by that 1. Exactly like you see me do in this vid. Ex: 5 - 3/7 Becomes 4 7/7 - 3/7 Answer: 4 4/7 I hope that helps you.
This helped so much ✨new subscriber✨
Thanks for this super note! I’m glad to help you. You might like to use the website I made - www.letsdomath.ca I think it’s easier to find just what you want there. Plus I made it look pretty cute. 😃🥰
Hello! I still am confused on how the whole number becomes a mixed number and how does it become a mixed number? I would really appreciate if you do a video about it! Thankyou!
This video is too underrated, give it more attention guys. Thank you soo much
Glad to help! 🤗😃
This helped a lot !
What kind if bird seed to feed?
How can u substract 1 whole by a fraction though 🤔
Not bad but those arent large numbers, was hoping for trick to find LCM or numbers above 1E12
i loved it it helped me so much and iI got a good grade thx
How about can you teach me how to divide short term Please cause I'm struggling😢
Please use my website www.letsdomath.ca Go to the signpost and click on Resources. That takes you to the video links. Scroll down through the subjects and you’ll find Division. Start at the top of the stack. Do you know your times tables? In order to be swift at division you need those multiplication facts permanently ingrained in your brain. It’s the number one thing you can do for yourself to turn it round from struggling in math to being confident and ready to rock the class.
@@LetsDoMath thank you for the website ♥️
What if my first number is 0.96 do I still move it one place to the right? ( HELP I JUST GOT A LOT OF WORK TO DO BECAUSE I WAS SICK FOR ALMOST TWO WEEKS AND I NEED HELP!)
You need to get it so that you are dividing by a whole number. However many places you move that point in the number you are dividing by, you move the point in the number you have to divide up (the number inside the ‘division house’).
Can you do a video of unlike denominators with mixed numbers 1:27
Thank you so much you make it very easy thank you
Thanks,now i wont fail