4th Grade Math - By Lumos Learning
Transcript
| 00:01 | uh , boys and girls . Today's lesson . We're | |
| 00:08 | going to start off with quick images , so you | |
| 00:10 | need to have your Mac notebooks out . Let's date | |
| 00:12 | it for September 14th . We started quick . Image | |
| 00:16 | is just the beginning of this week , remember ? | |
| 00:19 | I'm going to show it once , five or 10 | |
| 00:21 | seconds , and I'm gonna hide it again . So | |
| 00:25 | you need to really visualize what you see and draw | |
| 00:28 | what you see . I'll give you a few seconds | |
| 00:32 | . I'll show it again . I'll hide it again | |
| 00:35 | . Again . You're going to add to your visualization | |
| 00:37 | of what you see . Then I'll show it a | |
| 00:41 | third time , and we'll talk about it . We'll | |
| 00:43 | talk about how we can get it to relate to | |
| 00:46 | math , math equations . And some people think we're | |
| 00:49 | gonna probably have a different different ways of viewing it | |
| 00:51 | . So we'll talk about that too . So are | |
| 00:54 | your eyes ready ? Hey , here we go . | |
| 00:57 | First time . Yeah . Let's look at it again | |
| 01:11 | . Your eyes ready ? I don't want you might | |
| 01:14 | have missed it . Mhm . Mm hmm . Can | |
| 01:24 | you think of an equation that might go with this | |
| 01:27 | ? How did you know how many there were ? | |
| 01:29 | Can you circle your three groups ? of six , | |
| 01:33 | so I can see it even better . Yeah . | |
| 01:37 | Mhm . Okay , let's see what you got . | |
| 01:42 | Yeah . Mhm thumbs up if you got it exactly | |
| 01:48 | right . Items up . If you were really , | |
| 01:51 | really , really close and you were on your way | |
| 01:56 | . So I know sometimes it takes us a little | |
| 01:57 | bit longer than the time I can give you . | |
| 01:59 | And folks let's talk about how many this is and | |
| 02:03 | how you visualize that with your math . Jose , | |
| 02:07 | what do you do ? Uh , I'll put three | |
| 02:11 | times six equals 18 . You got three times six | |
| 02:14 | equals 18 . Can you come up here and circle | |
| 02:18 | ? Mm . How you visualize three times six equals | |
| 02:20 | 18 , please . Thumbs up , if that's what | |
| 02:22 | you saw . Ah , so we've got some thinkers | |
| 02:27 | that are all thinking the same . Yeah . Now | |
| 02:34 | he's showing us what he's showing us . What's he | |
| 02:38 | showing us ? Ethan , say it again , please | |
| 02:42 | . Groups of three groups of three . And how | |
| 02:45 | many groups of three did he get ? 66 Good | |
| 02:48 | job . Thanks . Anybody see it another way ? | |
| 02:51 | Yeah . Anybody see it another way ? Uh , | |
| 02:56 | well , how do you see it ? Uh , | |
| 02:58 | Deandra , Nine times 29 times two . And what | |
| 03:02 | did you get for nine times two , 18 , | |
| 03:05 | 9 times two equals 18 . Can you come up | |
| 03:07 | and show it , Please use it A different color | |
| 03:10 | marker so you can see it . Did anybody think | |
| 03:13 | like Deandra ? Yeah . Yeah , the teacher . | |
| 03:26 | Okay , Yeah . Yeah . Okay . I see | |
| 03:31 | how you connected it . Nine groups of two . | |
| 03:33 | Did anybody do the community property of that one ? | |
| 03:38 | Because I really didn't think . Nine groups of two | |
| 03:40 | . I thought of it as Yeah . What's the | |
| 03:44 | community that nine times two . Yeah , Yeah , | |
| 03:48 | yeah . Say it again . Two times . Two | |
| 03:51 | times nine . And I'll show you what I did | |
| 03:52 | . You might think of it like that . Two | |
| 03:53 | times 92 groups of nine . Come up , Jacob | |
| 03:56 | . And show us how you saw that way . | |
| 03:58 | We know that these mean the same thing . We've | |
| 04:02 | already talked about that , but circling and they might | |
| 04:05 | show it in a different way . Show me your | |
| 04:07 | two groups of nine . Yeah . Okay . Mhm | |
| 04:14 | . Mhm . Good job . Good job . Another | |
| 04:19 | way . Got another marker . We can do it | |
| 04:22 | one more way , and then we're gonna go on | |
| 04:24 | with our math lesson for the day . Another way | |
| 04:26 | . Uh , what you get ? Mm Care is | |
| 04:31 | going to show us what she's doing . Oh , | |
| 04:49 | good . So you and Jose were doing the community | |
| 04:52 | of each other ? The flip flops is what ? | |
| 04:54 | Kindergartners column . Right , But not in fourth grade | |
| 04:57 | . So a lot of a solid as looking at | |
| 04:59 | groups up as groups up if I was gonna put | |
| 05:03 | . And this is just going to extend a little | |
| 05:04 | bit if I was gonna put all of these together | |
| 05:09 | . He's still big . Well mm . Grab the | |
| 05:17 | little eraser out . Uh huh . Does that look | |
| 05:23 | big , Huh ? That's big . It's quicker . | |
| 05:29 | If I was going to put all of these together | |
| 05:31 | and make what am I making ? If I put | |
| 05:34 | all of my rows and columns and fit them together | |
| 05:36 | ? What am I making trip ? What am I | |
| 05:39 | making ? Alright . An array . What would the | |
| 05:42 | dimensions be if I was going to slide them altogether | |
| 05:45 | ? Six by three . Good job . Come and | |
| 05:47 | show us . Yeah . Mhm . And then label | |
| 05:58 | where you're six would go . Good job . Cool | |
| 06:04 | . Cool beans . That's the new work . Cool | |
| 06:06 | beans . Good job . Good job on quick images | |
| 06:09 | . We're gonna do those . Why are we doing | |
| 06:11 | them ? We're gonna keep doing them . Why ? | |
| 06:12 | What's it gonna help us Do especially us that still | |
| 06:17 | are trying to memorize some things . What's going to | |
| 06:20 | help us do ? Yeah , Matthew , sometimes it | |
| 06:27 | can help us . Um , count battle count faster | |
| 06:32 | . And what's counting has to do with a raise | |
| 06:37 | . Um , it can help you . Long time | |
| 06:40 | . Exactly . Very good . Exactly . All right | |
| 06:44 | . You can keep your notebooks open because you're probably | |
| 06:46 | gonna need them . But I need your pencils down | |
| 06:48 | and all eyes up here on our smart board . | |
| 06:51 | We're gonna do it . Think pair share . We're | |
| 06:55 | gonna do a lesson today . It's called multiple . | |
| 06:58 | Okay , tive comparisons . I want you to think | |
| 07:04 | , What does that mean ? And I mean , | |
| 07:07 | when you give you a little bit of hint you | |
| 07:09 | all know back here on our cafe menu how to | |
| 07:13 | figure out what words are You've given me these ideas | |
| 07:18 | how to figure out what they mean . We've done | |
| 07:22 | nifty thrifty 50 talked about prefixes and root and base | |
| 07:27 | words and suffixes . Use your schema in reading . | |
| 07:32 | Help you figure out those math words . Think mhm | |
| 07:38 | . Mhm . What does multiplication comparisons mean ? Mhm | |
| 07:49 | . You're thinking pair up with your partners sitting around | |
| 07:53 | you talk about it . What Do you think it | |
| 07:56 | means multiplication and , uh , check about multiplication and | |
| 08:02 | then compare . Compare . We compare . The multiplication | |
| 08:07 | is to get multiple multiply . What about comparison ? | |
| 08:12 | Comparison ? What's the word in there like that is | |
| 08:15 | to say not . What do you think ? What | |
| 08:22 | did you say that she agreed with said multiplication Paris | |
| 08:27 | . I know it's hard . It's really like you | |
| 08:30 | both . Get them , like , steady for each | |
| 08:32 | for each one you like . Night . Steady . | |
| 08:36 | So what ? Steady me when you're talking about multiplication | |
| 08:39 | comparison . Um , seven times three and three times | |
| 08:43 | seven . Okay , so you think it kind of | |
| 08:44 | means flip flops ? And you said that the community | |
| 08:48 | property . I love the way you always try to | |
| 08:50 | give examples to . Help me understand That helps me | |
| 08:52 | , like you can still get to compare them . | |
| 08:54 | Yeah , And you're comparing those two . Okay , | |
| 08:56 | What do you think ? It's probably like I mean | |
| 09:00 | , like , it could be a different ring , | |
| 09:03 | a different array . So you're going to compare one | |
| 09:06 | array to a totally different array . Okay . Okay | |
| 09:15 | . Does anybody want to share their thoughts ? Their | |
| 09:17 | ideas ? Chiana , me and my partner shares that | |
| 09:22 | watch application . Compare multiplication of comparison multiple . Kate | |
| 09:29 | of comparison . We think it means that you compare | |
| 09:35 | . Want one multiple case ? Ethan , You can | |
| 09:39 | help her out if she wants your help . We | |
| 09:42 | believe that , um mm . That means that we | |
| 09:46 | that you compare one multiplication equation with another . Okay | |
| 09:51 | , Okay , that's a good idea . Good thinking | |
| 09:56 | . What do you think ? I think that you | |
| 09:59 | have to put two numbers together and see what are | |
| 10:01 | equal to any two numbers . No . And you | |
| 10:07 | said see what it equals . Well , let me | |
| 10:08 | rephrase my question . What are you going to do | |
| 10:10 | with those two numbers when you put them together ? | |
| 10:13 | You gotta tell me what put together means ? Yeah | |
| 10:17 | . So we can do a lot to numbers . | |
| 10:19 | Think of your word . Yeah . Think of the | |
| 10:22 | work . Do you see any words ? Small words | |
| 10:28 | that jump out at you in that big , long | |
| 10:30 | word multiple multiplication of comparison . Compare . Okay , | |
| 10:38 | but you were talking about doing something to two numbers | |
| 10:41 | . Do you see another word out there that might | |
| 10:43 | help you decide what you're gonna do to those two | |
| 10:45 | numbers besides compare them share ? Share them . What | |
| 10:50 | are you thinking , Trent ? You have your hand | |
| 10:52 | in the back . I was thinking that it might | |
| 10:56 | , You might have to have two numbers and you | |
| 10:59 | have to find the multiples . Okay . And why | |
| 11:01 | do you say to numbers with multiples ? What do | |
| 11:04 | you do ? Multiples ? Because it's as multiple . | |
| 11:08 | So you're you're chunking . You're seeing a little word | |
| 11:11 | in that big , long word . That's one of | |
| 11:12 | the things to be said about accuracy . That's one | |
| 11:14 | of the things we're learning about . 50 50 50 | |
| 11:16 | . Um , de janeiro . Uh , you take | |
| 11:23 | two different months of for months of multiplication equations and | |
| 11:29 | see if they could are saying okay and I'll have | |
| 11:33 | time for one more , and then we're gonna go | |
| 11:35 | on , and we're gonna see if what we were | |
| 11:37 | thinking is really what we're going to be doing with | |
| 11:40 | multiplication comparisons . One more . Um , how about | |
| 11:47 | Olivia ? Oh , sure . Multiply means multiplying by | |
| 11:52 | numbers . So you think multiplication means multiplying numbers ? | |
| 11:56 | Okay , we're going to compare them . Sure . | |
| 12:00 | Okay , we'll track . All right , let's focus | |
| 12:03 | back . We've done I think , pair share . | |
| 12:06 | And I want to show you a problem that it | |
| 12:12 | is an example of multiplication of comparison . And it | |
| 12:18 | sounds like this . Deandra picked seven apples . Reese | |
| 12:25 | picked four times as many apples . How many apples | |
| 12:30 | did he pick before I even start to think about | |
| 12:35 | it ? Like math . I think about it . | |
| 12:37 | Like reading Were the characters in our story Who are | |
| 12:42 | the characters in our story ? Kayleigh , Deandra and | |
| 12:50 | Tianjin . Reese . What are t Andhra and Reese | |
| 12:54 | doing ? Shayla at the count of Apple's ? Uh | |
| 13:04 | , they're counting apples . Do you think they might | |
| 13:06 | eat them ? What can you infer they might do | |
| 13:08 | with them besides , eat them like this is done | |
| 13:13 | and Yeah . Okay , Mike , plant the seeds | |
| 13:19 | out of them regular apple school . All right , | |
| 13:21 | what is , uh , your problem ? Because in | |
| 13:24 | math , the story problem becomes your problem . So | |
| 13:30 | what do we need to figure out here , Alex | |
| 13:40 | ? Do we need to figure out how many apples | |
| 13:42 | they have ? Do you need me to reread it | |
| 13:46 | for you ? Okay . It says Tianjin picked seven | |
| 13:51 | apples . Reese picked four times as many as as | |
| 13:55 | many as apples . How many apples did he pick | |
| 13:59 | ? So who are we looking to see ? We're | |
| 14:01 | looking for weeks . We're looking for racist . Apple's | |
| 14:04 | good job . Good , good , good . Good | |
| 14:06 | job . All right , Hands down . I'm starting | |
| 14:10 | to learn how to use the smart board . You're | |
| 14:11 | gonna think this is pretty cool . Your third grade | |
| 14:13 | teacher may have already showed it to you . I'm | |
| 14:15 | going to show you the apples that Deandra picks . | |
| 14:20 | Okay , you can count with me . 12 Oh | |
| 14:34 | , What's to say exactly ? I'm gonna make this | |
| 14:38 | page just a little bit longer . Alright ? Seven | |
| 14:41 | apples , T . Andres , you have fun picking | |
| 14:43 | your apples . I like apple . You like Apple | |
| 14:45 | School ? All right ? Reese comes along and he | |
| 14:49 | the story says he picked how many more Or how | |
| 14:53 | many times ? More . Four times . Who wants | |
| 14:57 | to show me the one time ? The one time | |
| 15:02 | one time ? As many as Reese . Jacob . | |
| 15:06 | All you gotta do is your apples are gonna be | |
| 15:09 | red Reese . 200 years of yellow . So you're | |
| 15:12 | gonna show me one times as many , and this | |
| 15:15 | is a Well , we'll see what happens . Floor | |
| 15:20 | mhm three . Why ? Good job . Are you | |
| 15:32 | done ? Good job . That four step back because | |
| 15:36 | we're in the thing . This shows that one times | |
| 15:41 | as many as who T Andhra . That's one . | |
| 15:46 | Okay , alright . Trends ready . Jacob said he's | |
| 15:50 | ready , so j trend . You're going to show | |
| 15:53 | us two times as many , but You've got to | |
| 15:56 | use what Jacob already has on there . Okay , | |
| 15:58 | Keep the Richard do your stuff . Do your thing | |
| 16:01 | . Do your thing . Uh , great . Oh | |
| 16:13 | , Oh , just click off . There you go | |
| 16:17 | . She says hi . Seven fish . He said | |
| 16:29 | , Yeah . Tell me why I should show me | |
| 16:31 | two times as many we can put . Show me | |
| 16:35 | two times as many seven apples . You did seven | |
| 16:40 | apples . Uh , is that a group of seven | |
| 16:43 | apples ? It's not a group . You tell me | |
| 16:49 | . You think it is a group ? Why is | |
| 16:51 | it considered to be a group ? Because I put | |
| 16:54 | seven apples and you put on we could put a | |
| 16:56 | circle . Did Jacob make a group of seven apples | |
| 17:01 | ? And what did I ask you to show ? | |
| 17:04 | Did I say show two groups of seven ? You | |
| 17:10 | are interpreting that , and that's exactly what I want | |
| 17:12 | you to do . That's exactly what I want to | |
| 17:14 | do . But what did I really say ? What | |
| 17:19 | did I say ? I said show me two times | |
| 17:22 | , but listen to their language . They kept saying | |
| 17:26 | to groups up , Hmm ? All those synonyms , | |
| 17:30 | maybe maybe think about that , Jose , You want | |
| 17:36 | to show me three cars as many I'm going to | |
| 17:39 | extend this page a little more . What ? Okay | |
| 17:49 | . Oh , seven . You caught yourself . Why | |
| 18:00 | did you go back ? Because all I heard eight | |
| 18:04 | hurt . But he wasn't paying attention . You probably | |
| 18:08 | must have been . He didn't because he stopped . | |
| 18:10 | He didn't pay attention . He would have kept going | |
| 18:11 | , so you didn't pay attention . So tell me | |
| 18:13 | what you got here , Jose ? I get 21 | |
| 18:17 | . You have 21 . How do you know ? | |
| 18:20 | Because I know that seven times 47 7 times to | |
| 18:24 | 14 . And if you add seven more than 14 | |
| 18:29 | , you'll get Oh , 21 . Cool you got | |
| 18:37 | can I'm gonna say , Do you have seven or | |
| 18:40 | you have How many groups up here ? That's what | |
| 18:43 | I was . How many groups you have ? 33 | |
| 18:45 | So could I say you have three groups of seven | |
| 18:48 | . Can Does anybody know the synonym of what I | |
| 18:51 | asked him in the beginning to do ? What did | |
| 18:55 | I tell him ? I didn't come up here and | |
| 18:57 | show me three groups of seven . What did I | |
| 18:59 | say ? Giovanni ? Three times seven . I did | |
| 19:07 | show me three times a day , three times a | |
| 19:11 | day job . Okay , Someone , Dijon A I | |
| 19:15 | need you to show me four times as many using | |
| 19:18 | already what they have . Why three ? Are you | |
| 19:32 | finished ? So can you explain what you have up | |
| 19:35 | on the board using all your peers stuff too ? | |
| 19:39 | You have four times seven . Do you have , | |
| 19:46 | uh , four times as many as to Sandra ? | |
| 19:49 | Yes , you do . So tell me , are | |
| 19:52 | we finished ? How do you know ? I think | |
| 19:57 | are we finished with the story ? How do you | |
| 20:01 | know ? I'm going to read it out loud ? | |
| 20:04 | Because I think some people might need that . Deandra | |
| 20:07 | picked seven apples . What color ? Her apples , | |
| 20:10 | everybody . Reese picked four times as many apples . | |
| 20:16 | How many apples did he pick ? Are we finished | |
| 20:20 | with our story ? Did we solve our problem ? | |
| 20:25 | No . Talk to me about that . Talk to | |
| 20:27 | us because we have to figure out what it equals | |
| 20:31 | . Have we done that ? How many of you | |
| 20:34 | think we've shown what it equals ? What should go | |
| 20:40 | with our picture to make it very clear that we | |
| 20:43 | have an answer ? We've got some equations up here | |
| 20:48 | . We've got a visualization . A picture up here | |
| 20:51 | . What else would even make it better ? Total | |
| 20:55 | ? What is the total Kayleigh 21 . Yeah . | |
| 21:00 | Mhm . Jax . Kelly , You What were you | |
| 21:05 | gonna say ? Good morning , Orange . 21 . | |
| 21:08 | Jose , Did you say 21 when you had three | |
| 21:12 | groups of seven ? Another four groups of seven . | |
| 21:15 | So what we need to do ? Oh , 10 | |
| 21:22 | . It's four groups of seven . What do we | |
| 21:24 | need to add to the three groups ? Seven more | |
| 21:26 | . Seven more . Get it going . Waiting . | |
| 21:30 | 28 . Very good . 28 . What ? 28 | |
| 21:34 | apples . Should we label ? Well , why should | |
| 21:37 | we label every answer in a math story ? So | |
| 21:42 | the person knows what you're talking about ? Absolutely . | |
| 21:45 | What's the story about ? We don't wanna put oranges | |
| 21:48 | . We don't want to put raindrops . We want | |
| 21:52 | to put apples . So if I was going to | |
| 21:55 | answer the question , how many apples did he pick | |
| 21:58 | ? Using our visualization , the manipulative on the smart | |
| 22:03 | board , using the math equations that you gave me | |
| 22:07 | , what would we put for our answer ? How | |
| 22:11 | every and should be up ? Because good listeners should | |
| 22:13 | have heard Caylee . She worked hard on that . | |
| 22:20 | Hi , Ana . 28 28 1 28 . Apples | |
| 22:24 | . Very good . 28 . Mhm . That is | |
| 22:32 | an example of multiplication comparison . Are you changing your | |
| 22:37 | predictions a little bit . Are you still going , | |
| 22:39 | huh ? How many of you like that , huh | |
| 22:43 | ? It's okay . Like , uh okay . Don't | |
| 22:48 | try . How many ? You're still wondering anymore ? | |
| 22:50 | Help . I want to see it again . Guess | |
| 22:54 | what ? You're gonna see it again ? Because I | |
| 22:55 | have a feeling most of your uh huh . Brand | |
| 22:58 | spanking new . I want to show you another problem | |
| 23:01 | . Okay . It's an example of multiplication comparisons . | |
| 23:05 | Think about what you were predicting . It was all | |
| 23:07 | about . Let's see . Yeah . Yeah . You | |
| 23:13 | change your mind . All right , here's the thing | |
| 23:17 | . Go back to what you were thinking . Multiplication | |
| 23:20 | comparisons is all about . And I want you to | |
| 23:25 | focus on the repeated words . I love it because | |
| 23:30 | repeated words what we were doing in writing focus on | |
| 23:34 | the repeated words . And Aaliyah's little sister is 2 | |
| 23:38 | ft tall . Her dad is three times as tall | |
| 23:41 | as her little sister . Katz follows her dad . | |
| 23:45 | Deandra picked seven apples . Respect four times as many | |
| 23:50 | apples . How many did he pick ? Are there | |
| 23:53 | some repeated words in both of those problems ? Are | |
| 23:56 | there some repeated words in both of those problems ? | |
| 24:03 | Are there some repeated words ? Mhm , Erin , | |
| 24:12 | are there some repeated words ? Yes . What do | |
| 24:16 | you see ? Okay . Picked . You see Pic | |
| 24:20 | . Oh , okay . I see what you're doing | |
| 24:22 | . I wouldn't know . Pick is in your twice | |
| 24:25 | , but I don't know if there are some repeated | |
| 24:26 | words in both stories . You're absolutely right . So | |
| 24:29 | let me rephrase it . Comparing both stories . Are | |
| 24:32 | there some repeated words ? Mhm . Would you like | |
| 24:36 | some help ? Are you thinking more ? Time to | |
| 24:39 | think or help ? Hell , calling somebody that can | |
| 24:44 | help . Yeah . So , Deandra mhm in the | |
| 24:53 | white structure . Grief ? Yeah , The great shirt | |
| 24:57 | . Oh , I on uh , yes . Okay | |
| 25:02 | . Where are they ? Little sister and apples . | |
| 25:06 | Little sister and apples are all the same words . | |
| 25:08 | Oh , I want the words in this one to | |
| 25:11 | be in this way . You are making repeated words | |
| 25:14 | in one story . Times time . Is that all | |
| 25:19 | ? And there's spoilers , video work . We should | |
| 25:24 | forever town . Uh huh , pal . No , | |
| 25:29 | I'm not thinking that when the car goes with times | |
| 25:33 | , her dad is three times as tall as her | |
| 25:36 | little sister respect four times as many . It will | |
| 25:41 | be work as many again as many as many times | |
| 25:48 | as times as this one's times as tall . This | |
| 25:53 | one's times as many . Okay , think about your | |
| 25:57 | fair share . Think about multiplication comparison . Go ahead | |
| 26:02 | . Okay . Like taking a drink . I think | |
| 26:06 | . What multiplication comparison , You know . What does | |
| 26:11 | that mean ? Uh , still , I think it's | |
| 26:15 | , um it's where you can like the community and | |
| 26:20 | try to make them like bounce bows . And , | |
| 26:25 | uh , I think it's the same thing for you | |
| 26:29 | can give them balance . It's like a story problem | |
| 26:34 | and that it can help you with story problems about | |
| 26:40 | county and multiplication . A . I think it's actually | |
| 26:48 | like where you can . I'm like China . Chunky | |
| 26:51 | , chunky . It's like it's like in the word | |
| 26:54 | like , um uh , like , compare it I | |
| 26:59 | compare for , you know , again , Do you | |
| 27:06 | have anything else ? Wait a minute . When I | |
| 27:37 | look at the picturesque two on this side and six | |
| 27:39 | on this time when you were talking about your dad | |
| 27:41 | is that balance ? So what do you mean ? | |
| 27:43 | You have to explain balanced way . Mhm . Ah | |
| 27:51 | . So you're saying balance for another word for communicative | |
| 27:56 | catch ? Okay , give me five . Anybody want | |
| 28:00 | to share their thoughts now ? Drew thoughts about multiple | |
| 28:03 | comparisons . Change because I know in the beginning a | |
| 28:06 | lot of people say we're going to compare multiplication problems | |
| 28:12 | . Okay . Is that really what we did ? | |
| 28:15 | Did we compare multiplication problems ? Yes . Or now | |
| 28:20 | ? Thumbs up . If you think we did compare | |
| 28:21 | multiplication problems . Okay . Explain why we did that | |
| 28:26 | . How we did that . We were comparing multiplication | |
| 28:29 | problems . Can you explain it ? You have evidence | |
| 28:33 | to explain it ? Yeah , Matthew , we can | |
| 28:39 | power towards think that will both end them . You | |
| 28:44 | compare two words in them . Those two words have | |
| 28:47 | to do with multiplication . Yes . Okay . Did | |
| 28:50 | we compare multiplication problems ? Because if you said we | |
| 28:53 | did it , you've got to prove it or I'm | |
| 28:55 | not going to believe it . So you people that | |
| 28:57 | just raise your hands , you better be thinking about | |
| 28:59 | how you're gonna prove it . If you can't prove | |
| 29:02 | it , you might say I don't know so much | |
| 29:05 | if I really believe that's what we did . I | |
| 29:08 | agree with you . We compared the problems , the | |
| 29:10 | word , the story problems and found a repeated work | |
| 29:15 | from what do you think we really did ? Because | |
| 29:18 | when I think and maybe I'm thinking different than you | |
| 29:20 | did when you all say we compare multiplication problems , | |
| 29:22 | I'm thinking I compared seven times 4 to 2 times | |
| 29:27 | three . Did I do that ? No . Well | |
| 29:31 | , that's what I'm thinking . Because that's what that | |
| 29:33 | means to me . Who can tell me what they | |
| 29:37 | think multiplication comparison means and prove it with evidence . | |
| 29:42 | Just like when we infer in reading , we must | |
| 29:45 | prove it with evidence . Mhm . Sure . Okay | |
| 29:52 | , Ethan . Nice and loud . I believe that | |
| 29:58 | multiple creative comparisons means when you compel the two factors | |
| 30:07 | in the multiplication occasion say it again . Nice and | |
| 30:10 | loud . Um , our thinking is when you compel | |
| 30:16 | two factors of a multiplication equation . So I'm going | |
| 30:21 | to bring up this one , and you talk to | |
| 30:27 | us about what you just said . Like , what | |
| 30:31 | would be the fact ? Come on . Okay . | |
| 30:35 | All eyes , This press student , Ethan , the | |
| 30:39 | teacher battles would be full . And how do you | |
| 30:47 | know that ? Um , I know that because , | |
| 30:52 | um , seven times four equals 28 . And did | |
| 30:57 | our pictures show that , um , there are pictures | |
| 31:01 | show seven times four or the community four times seven | |
| 31:05 | . Did it ? Can you circle that so people | |
| 31:08 | can see where it says four groups of seven or | |
| 31:12 | seven groups of four ever . You want to look | |
| 31:14 | at it good . Why don't you circle that one | |
| 31:19 | ? Because that , um mm is , um , | |
| 31:25 | the There's a number more fun . Yeah , it | |
| 31:28 | is . And who's bad about Tian Tian Draw . | |
| 31:31 | And what is the rest of the story about ? | |
| 31:34 | We've got to use this information , but what is | |
| 31:36 | the question focusing on , um , it's focusing on | |
| 31:39 | how many apples picked and which one Which one of | |
| 31:43 | these colors shows Reese , Um , would , Yeah | |
| 31:50 | , so he said and let me restate it . | |
| 31:54 | And if I'm not saying it right , you help | |
| 31:56 | me . Because sometimes that kids understand your language better | |
| 32:00 | than they understand my language because they're used to hearing | |
| 32:02 | their peers speak . So you're you're saying that multiple | |
| 32:06 | active multiplication of comparisons are when you're really comparing the | |
| 32:11 | two factors in a story . To get a product | |
| 32:20 | , go back to your seat . Good job . | |
| 32:23 | To sum it up , I want to look at | |
| 32:24 | the different ways you can say £4.17 28 and we | |
| 32:34 | know the community property seven times four is 28 . | |
| 32:38 | Let's look at the next week and ordered people come | |
| 32:40 | up with We can say it this way . Let's | |
| 32:42 | say it way we could say it this way . | |
| 32:55 | It this way Going to show you this . And | |
| 33:07 | I want you to read it carefully . There's another | |
| 33:10 | one after it . I'm gonna I'm gonna show it | |
| 33:11 | to see if you can guess what it is we | |
| 33:13 | could say . Or 27 they get , they get | |
| 33:26 | What could the other way be shouting ? Trump , | |
| 33:33 | What are you thinking ? Wow . Seven , seven | |
| 33:38 | times as many . Seven is 28 to us , | |
| 33:45 | as many as well , Does that make sense the | |
| 33:48 | 7 . 28 times as big as four . Do | |
| 33:53 | you think about the pictures ? I mean , he | |
| 33:54 | had 28 fours . 28 4 is gonna give us | |
| 33:57 | seven . Look at how 2028 is four times as | |
| 34:03 | many as seven natural factors . Mhm . Yeah , | |
| 34:11 | we switched out factors . So what , are we | |
| 34:13 | gonna switch out here ? Yeah , 70 . No | |
| 34:18 | , 28 Factors I gotta think of factors and four | |
| 34:27 | . Yeah , because because four times seven is 28 | |
| 34:30 | so we switched them out . We gotta switch them | |
| 34:32 | out here in the community . We could say Yeah | |
| 34:36 | , yes , that's what that says . Factors as | |
| 34:47 | many . Say it really loud . Everybody these , | |
| 34:54 | these these are groups . What we wanted in third | |
| 35:01 | grade . This is an array . This is what | |
| 35:04 | we've learned in 3rd and 4th grade . And this | |
| 35:10 | it's called . What ? What we talked about today | |
| 35:14 | . Who read it like this ? We are doing | |
| 35:19 | What ? How would you say Why do it ? | |
| 35:26 | Oh , you're saying multi multiplication . Multiple kind of | |
| 35:31 | comparison sounds here . What is it ? Everybody with | |
| 35:38 | a with you're gonna learn that word like you learn | |
| 35:43 | medical ignition . You're gonna work on this either tomorrow | |
| 35:47 | or after lunch . We'll see what happens . |
Summarizer
DESCRIPTION:
Grade 4 lesson demonstrating CCSS Math Standard 4.OA..A.1,2, using literacy strategies to understand word problems. Lesson progresses through prior understandings of multiplication as groups of objects to multiplicative comparisons.
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4th Grade Math is a free educational video by Lumos Learning.
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