4th Grade Visualizing with Fractions - Free Educational videos for Students in K-12 | Lumos Learning

## 4th Grade Visualizing with Fractions - Free Educational videos for Students in k-12

#### 4th Grade Visualizing with Fractions - By Lumos Learning

Transcript
00:05 So we got this cupcake here and this cupcake here
00:10 . I'm gonna give you two thirds of this cupcake
00:12 because I know two thirds is a larger fraction in
00:14 three fists , but and I'm gonna take 3/5 of
00:16 this one . Is that fair ? You would get
00:19 larger slices from the pain , boy . Why ?
00:24 Mhm ? Because the cupcake is bigger . Oh ,
00:30 so what does that mean ? What do we have
00:32 to have and have to know when we're dealing and
00:36 comparing with fractions ? Come on , guys . Think
00:42 about it . Mhm . We think equal sizes .
00:50 Who agrees with that ? Yeah . Why do you
00:53 agree with that ? Everybody's gonna want a piece of
00:56 the big cupcake because it's bigger . So the pieces
01:00 of the smaller cupcake going to be the same is
01:02 that he's a big cupcake . Why not ? Because
01:06 the pieces are going to be large . Why ?
01:10 Because the cupcakes larger So the cupcakes larger . So
01:14 what has to be true ? We have to have
01:16 the same size yelling at me the same size .
01:20 What ? What ? What is it ? What is
01:25 the thing we compare with with fractions ? What's that
01:27 vocabulary word ? Mhm . We gotta get our vocabulary
01:32 down hole . All right . So let's say that
01:35 again . We have to have the same no same
01:43 size ho . So is the whole of a fraction
01:49 . Extremely , extremely important . Okay , you gotta
01:56 . Now you have to have the same size hole
02:00 cannot compare fractions . Cannot do anything with fractions if
02:04 you don't have the same size hole . All right
02:07 ? Yeah . Now we're going to practice . If
02:13 we have two thirds or three fours , we're going
02:16 to compare them and figure out which is greater .
02:21 How in the world do I get my whole ?
02:25 How do I draw my ray ? How do I
02:28 figure out how to start here ? Well , I
02:31 have to look at what do you think ? Dance
02:35 with that paper . And what do you think ,
02:38 Aiden ? How do you think I get the same
02:41 ? How am I gonna get my whole What do
02:45 I need to look at ? Okay , I'm gonna
02:59 use the squares . I'm gonna give you a little
03:01 hint . Look at . Yeah , Isabel , You
03:11 said it . And my right here . How many
03:15 total squares did I have ? 15 . 15 ?
03:19 I was comparing 3/5 and two thirds . Where do
03:26 you think I got 15 from Ira ? I see
03:30 some light bulbs going off . Look at the two
03:31 fractions I compare . Now look at the array I
03:35 used for my comparison . What do you notice about
03:38 it ? Make some connections about a raise . When
03:40 you did a raise back in multiplication , What do
03:46 you see here ? Look at my dimensions of my
03:49 right . Look at the dimensions . Eyes up there
03:52 . Look at the dimensions of my ray . What
03:54 do you notice about them ? Where did I get
03:57 them ? Where did I get the dimensions of my
04:00 rate ? So you didn't nominate . You're exactly right
04:03 . You can You're good . Okay , so I
04:06 have a 12345 by 123 Array . Where did those
04:12 come from ? My denominators . Okay , so now
04:18 that we have that , let's go back and look
04:19 at two thirds or three . Force . What's as
04:25 a ray ? Am I gonna draw here to compare
04:31 ? Thanks , guys . We just said it Eyes
04:34 up there . Where am I going to get the
04:36 dimensions from our right ? Caitlyn ? Denominator ? The
04:40 denominators . Alyssa , where do we get the dimensions
04:43 for our array ? Caitlin just told you . You
04:51 know the denominators . Okay , so let's on your
04:55 paper . I want you to draw a three by
04:58 four array . Use the lines on your grid paper
05:15 Yeah , yeah , yeah . Okay , so we
05:25 have our three . About four . Now we have
05:27 to shade in . Oh , we got cricket .
05:30 Minus two thirds . How are we going to shade
05:34 in ? Two thirds ? Two out of three .
05:41 Fix this . Two out of three . Go ahead
05:50 . Two out of every three . Two thirds ?
06:01 Yeah . Is that a four by three ? Uh
06:11 , you have 123412 four . Rhetoric . Two out
06:15 of every three . Okay . Okay . Yeah .
06:36 What ? See how crafty I am ? Okay .
06:56 All right . Here's what I saw . As I
06:57 walked around , I saw uh huh . And then
07:06 I saw one problem . It's not like I'm like
07:15 , that was the same thing . Austin , you're
07:23 ? Yeah . Mhm . Yeah . What fraction are
07:28 they both showing ? What fraction is that ? Okay
07:44 , what ? Fraction 22 out of 32 3rd .
07:50 So here . 12 out of three . 12 out
07:55 . of three 12 out of 312 out of three
07:59 . I saw that . And then I saw one
08:04 two out of three equal parts . If these are
08:09 the three equal parts , some people shade it in
08:12 two whole columns over here . Some people shade it
08:18 in two of three . Are they equivalent ? Is
08:22 that the same thing ? Yeah . Okay , so
08:26 however you see it in your mind , that's okay
08:29 . As long as you shade in two thirds .
08:32 Two out of three . Okay , so now let's
08:36 do three fours . What size of Ray do we
08:38 have to draw for it ? Cool . It has
08:42 to be the What if we're comparing fractions ? They
08:47 have to be the same one . Thank you .
08:51 Say it again . All right . So what side
08:55 of the ray are you gonna draw ? What size
09:00 array Are you gonna draw ? 343 three by four
09:07 . What size is your ray gonna be ? Thank
09:11 you . Now draw it . Yeah . Okay .
09:20 Calling . Yeah , Yeah . All right . Who
09:41 once again up and show us what fraction is greater
09:44 and why he's who we're going to pick on .
09:52 All right . Caitlin , you haven't been up all
09:55 eyes on Kate because you might need some help with
10:05 two thirds of this , it looks Yeah . Um
10:13 , you can't lean on it , babe , if
10:16 you lean on it . Yeah , it looks like
10:20 that , but 3/4 is a lot like pick the
10:24 same thing . Only it's put a different can't way
10:29 . Yeah , it looks like that . So which
10:38 fraction is greater ? Caitlin 34 Because his two thirds
10:43 is only two parts out of four and 3/4 is
10:47 three parts out of four . Say it there .
10:52 Stay up there . Does anybody have anything to say
10:54 about Caitlin's explanation or visual or anything ? Yeah .
11:02 Yeah , I got some to say . We got
11:03 to say that two thirds , right ? Okay .
11:09 Who agrees with Isabella ? Okay . Why do you
11:16 agree with Isabella ? She put six covered and ,
11:19 um and it was it , um , attitude .
11:23 Okay . What does that look like when you just
11:26 look at that ? What does it look like ?
11:31 it . I have We're good at half . We
11:34 know a half . That was like a half Kalen
11:37 . Is that like I have to ? You does
11:39 it for Does it still like a half is shaded
11:50 . Let's think about Caitlin . How many did you
11:52 shape ? I appreciated 66 How many total total squares
11:57 are in ? Their 12 is six . Half of
12:00 12 is half and two thirds the scene . So
12:05 what's going on ? She Do you want to phone
12:14 , Isabella . Alright . Y'all better get right .
12:20 Okay . I'm thinking I'm thinking that lines may have
12:26 helped . I don't know . What do you all
12:27 think ? Yeah , you are too quiet for me
12:31 . Come on . You got to talk . I
12:34 got here within those brains . I think I know
12:39 what I think . She was looking at it a
12:42 different way . Okay , so how do we fix
12:44 it ? Can I read you ? Sure you can
12:49 do whatever you need to do . I hope you're
12:53 watching because we may need more help up here .
12:55 This is tough , tough stuff . I tell you
12:58 . Fractions . She hasn't drawn like the spending .
13:03 Three going Mhm . Mhm . Mm . Mm hmm
13:17 . That's how she has very strong . Okay ,
13:19 so I see three equal parts there . Do you
13:22 all see the equal parts ? Uh huh . I
13:25 can't hear you . Okay . Mhm . So talk
13:31 us through it . Isabella , What are you doing
13:32 ? I was shaving third . Alright . Now ,
13:42 does that look like half anymore ? No , that
13:45 looks better than my eyes . Now tell me how
13:47 . Why ? That's two thirds he has . If
13:52 we had 15 , there's 33 There's three rows right
14:01 here . And , um , sensors , three rolls
14:06 . I know that is already split it into three
14:11 groups and just look at it . And how many
14:13 did you shade in ? And I was treated to
14:15 those roles . Awesome . Sarah , do you see
14:18 your mistake ? You see okay and see how easy
14:20 it is to make a mistake like that . But
14:22 we have to think we use our schema or background
14:24 knowledge and what we know . We know what a
14:26 half looks like . So right now we gotta think
14:29 . Oh , wait , wait , wait . Something's
14:30 wrong , because that looks like a half . So
14:32 I messed up somewhere , so we gotta go back
14:34 and think again . Two of three . I got
14:36 three equal parts shade into . Okay , We've got
14:39 to think about what We're doing . All right .
14:45 Yeah ,
Summarizer

#### DESCRIPTION:

4th grade math lesson on visualizing with fractions.

#### OVERVIEW:

4th Grade Visualizing with Fractions is a free educational video by Lumos Learning.

This page not only allows students and teachers view 4th Grade Visualizing with Fractions videos but also find engaging Sample Questions, Apps, Pins, Worksheets, Books related to the following topics.

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