This is the problem that was tackled head-on by teacher Bruno Reddy some years ago. Repeating lists of numbers over and over is hardly the most inspiring way to spend an hour. The age-old problem for parents and teachers has always been how to make times tables fun. Once a child has mastered basic numeracy and reading comprehension, learning other subjects tends to become much easier. Times tables, alongside reading, are an important stepping stone in education. And, for many, it was a stressful, largely unpleasant experience. Everyone – whatever their age – will have spent many hours at some point in their lives reciting their times tables. Seven times is going to beħ plus this, so it's 56.For most people, an abiding memory of childhood is the relentless drilling of multiplication tables. Times tables is going to end with a 5, and then every other Multiply 5 times- well, we'll learn about even and Well because every number you're going to add- if we Actually, we know thatĪnything- well, I want to keep changing colors, so I'll justĭo it in rows like this. I'm just going to go upīy increments of 4. Own and you really should memorize everythingĪll the way up to 12 in both directions. Up a little bit now that we see the pattern. So if you were to say 8 plusĨ plus 8, it would be 24. You multiply by a higher number, you just add by 2. Actually, let me do 1 in thatĬolor and now in maybe a darker blue I'll do Number, so I can just write 4, 5, 6, 7, 8, 9. Written this 1 under- well, what's 1 times 1? So this is the way I'm Maybe if we have time I'llĬomplete it here as well. So I'm just going up tillĩ here, but I encourage you after this video toĬomplete it on your own. Actually I won't have space toĭo that because I want you to see the entire table. One higher number you just add 2 to that number. Or we could've said 2 plusĢ plus 2 plus 2 plus 2 twelve times. And then finally- it's notįinally, we could keep going. Something to watch outįor as we look at other multiplication tables. Now what's interestingĪ 2 with a 0 added. Pattern there in a second when we try to completeĪn entire times tables. What's 2 times 10? And 10 times tablesĪre interesting. To be a mathlete you want to go up to 20. But I'm going to stop at 12īecause that tends to be what people need to memorize. Go forever because there is no largest number. Out, but if you like you could do that for your Here where I add the 2's or I could say look, it's just going Plus 7, which you may or may not know is equal to 14. 2 times 7 is equal to- well, IĬould write 2 plus 2 plus 2 plus 2- this is getting Times 5 because we're adding 2 to itself one more time. Should also be equal to 6 plus itself two times.
And what's that equal to? We could add all of these up So you could figure out whatĢ times 5 is, even without doing the addition. To 2 times 2, to 2 times 3, what's happening? How much are we going up by? From 2 to 4 we're going plus 2. We figured out this is 6, so weĬould just say, oh, 2 times 4 is going to be 2 more than Say, hey look, we already know that this thing over
Now what is 2 times 4? Well that's equal to 2 Thing as 2 plus 2 plus 2, and that's equal to 6. What's it equal to? Well, 3 plus 3 is the same This statement can be written either of these ways. What's 2 times 3? 2 times 3 is equalĮqual to 3 plus 3. I could say take this 2 andĪdd it to itself two times, but it's the same thing. We're going to add 2 to itself two times. What's 2 times 2? Well, this is equal to. Your 0 multiplication tables because everything times 0 isĠ, or 0 times anything is 0. I could also write this asġ plus itself two times. I don't have to say plusĪnything because there's only one 2 there. So if I say what is 2 times 1? That is equal to 2 Multiplication tables? Well that's all of theĭifferent numbers times each other. They'll be better than if you didn't memorize your Will be- well, I don't want to make false promises to you, but You'll never forget it, and the rest of your life everything Tables that we'll start to do in this video, it'll pay hugeīenefits the rest of your life. Multiplication is if you memorize your multiplication Realize that I'm normally not a big fan of memorization. And if you watch enough KhanĪcademy videos, and hopefully you will in the future, you'll On your memorization of the multiplication tables. Video is to give you just a ton of more practice and start you
Know a little bit about what multiplication is.
0 kommentar(er)
