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Hovedindhold
Aktuel tid:0:00Samlet varighed:4:58

Konstruktion af piktogrammer og søjlediagrammer

Video udskrift

let's do some examples creating picture and bar graphs so it says mr. Smith assigned a special project about the ocean to the students in his earth science class to find out his students who spend more time when their projects got better grades he asked the students how much time they spent completing their projects create a bar graph to show how much time each students spent completing the ocean project so James spent 36 minutes so I want to I'm going to click here and I'm going to move this I'm going to move this up to 36 eg IG spent 54 minutes so I'm going to move this up to 54 minutes and then Minli spent 36 minutes so I'm going to move Minli up to 36 minutes then Simone spent 30 minutes so I'm going to move Simone up to 30 and then Karen spent 12 minutes so I'll move Karen up to 12 and there you go I've constructed the bar graph let's do a couple more of these alright so on Thursday meeing went to see a loud and exciting performance by the dinosaur orchestra create a bar graph to show how many of each type of dinosaur were in the dinosaur orchestra so I guess there were 42 stegosauruses okay again oh if that's the plural for Stegosaurus so they're 42 stegosauruses 63 raptors so let me move the Raptor up to 63 35 Triceratops and then you had 49 Tyrannosaurus 49 of these so fairly straightforward so let's let's do a couple more of these alright so now it tells us roses flower shop makes bouquets for special occasions each bouquet comes with a different number of flowers create a picture graph to show the number of flowers in each bouquet so this is kind of like a bar graph but instead we're going to use pictures and each picture shows a certain number so in this case a picture of a flower represents three flowers so the Mother's Day bouquet has 21 flowers so 21 flowers now you might want you might be tempted to put 21 pictures of flowers here but you to remember each of these flowers represent three flowers so one way to think about you could count by threes 3 6 9 12 15 18 21 so that over here this right over here to represent 21 flowers and you notice I just made I just made 7 of this picture and that makes sense because 7 of these pictures in each of these pictures represent 3 flowers 7 times 3 is 21 the mothers to boot the Mother's Day bouquet has 21 flowers in it alright the anniversary bouquet is 27 flowers so 3 6 9 12 15 18 21 24 27 I have 9 flowers here 9 times 3 is 27 the birthday bouquet has 18 so 3 6 not 9 12 15 18 and I just made 6 pictures here because each of them represent 3 flowers 6 times 3 is 18 and then finally the congratulations bouquet has 12 flowers in it 3 6 9 and 12 there you go I think we're done I think I think we're done let's do one more of these all right berry bee and his bee friends loved pollinate flowers they created a chart and a picture graph to show how many flowers each of them pollinated today use the information in the chart to answer the question about the picture graph so it says so on the picture graph each flower equals blank flowers or each picture of a flower I should say equals a blank number of flowers so it says berry pollinated 27 is an impressive bees that they said they're making charts berry made berry pollinated 27 flowers and they only drew 3 pictures here so these 3 flower pictures must represent 27 so the way that they would represent 27 is if each of these represent 9 because we'd have 9 18 27 so each of these must be nine flowers but let's see if that works so for bumbly 63 so let's see 9 18 27 27 36 45 54 63 yep it looks like it works out Betty is 1 2 3 4 5 6 6 6 times 9 is 54 and that is the number of flowers she pollinated birdy 1 2 3 4 5 of each of those pictures represent 9 then this would be 5 times 9 is 45 and that is the number of flowers birdy had actually pollinated