Thursday, February 14, 2013
Stem and Leaf plot
Here is a really explicit and helpful lesson to help you learn about stem and leaf plots (tables). Watch it carefully and leave a comment.
Use these guiding questions to help plan your comment:
What makes sense to you about the stem and leaf plot?
What doesn't make sense, or confuses you about the stem and leaf plot?
How does the name, stem and leaf, help you remember how it works?
How important is organization when producing a stem and leaf plot? Why?
What kind of data might work best for a stem and leaf?
Did the video give you enough information so that you could create your own stem and leaf plot with a given set of data?
http://www.mathplayground.com/howto_stemleaf.html
Subscribe to:
Post Comments (Atom)
We thought that the stem and leaf plot makes sense because it's an easy way to sort data that includes many numbers. the words stem and leaf help remember where to put different numbers because the stem is bigger than the leaves meaning tens are bigger then ones. We especially liked how when you make a stem and leaf plot you can turn it into a bar graph!
ReplyDeleteThe stem and leaf plot helps you find the median faster so I like it. It is called "stem and leaf" because int the video, the stem was just a straight line and the leaf numbers were going out to the side. I think the best data that works best for a stem and leaf plot is a jumble of numbers.
ReplyDeleteI think the stem and leaf plot makes sense because it's an easy and quick way to sort data, and it's name is effective in helping you to remember. I actually think nothing really confuses me about the stem and leaf plot. I believe the name helps me remember how it works because leaves always branch off a stem, so the 10's numbers, (which are larger and represent the 'stem') and the 1's numbers (which are smaller, so they represent the leaves). I think organization is key in a stem and leaf graph, because it requires you to be sorting numbers and it's very easy to mess up. I think that scores would be best for a graph like this. The video showed this, too, so I don't think things such as percentages would work best with this graph. I feel very confident I could create my own stem and leaf plot, this video was very helpful. :)
ReplyDeleteStem and leaf plot by Valeriy and Jake:
ReplyDeleteStem and leaf plot makes sense to us because it is much easier to organize data. You just have to find the largest and the smallest number in the tens and write them and the numbers between them and put them in the STEM column. Then you take all the ones digits and match them with their tens digit. EXAMPLES: with the numbers 21, 34,55,11 and 14 the columns would look like this
stem leaf
1 1, 4
2 1
3 4
4
5 5
Stem and leaf plots name is very clever because the leaf column seems to branch out from the stem.
I really thought the stem and leaf plot is a great way to display great amounts of information in a small table, because instead of writing whole numbers, one only writes the tens, and then writes all the ones that fall into the specific tens ex, 256 and 258 would be 25 l 6 8. The name "Stem and leaf" helps me remember how it works because, the stem would be the main part of the numbers, and the leaves are the variations between the stem.
ReplyDeleteFirst of all I think stem and leaf plots are awesome because they are so easy to read. The stem and leaf plot completely makes sense to me and there is nothing that confuses me about it. The way I remember what a stem and leaf plot is by remembering that the line that splits the stem and the leaf looks like a stem and the numbers look like the leaves. Organization is very important when creating a leaf plot because if you don't organize the data then when creating the stem and leaf plot the number will get all out of order and your stem and leaf plot wont work as well. You could put data from bar graphs and pictographs in to a stem and leaf plot very well. (By the way, The video was pretty good.)
ReplyDeleteI really like how the stem and leaf plot makes it easy to sort a lot of numbers in a small table. So to sort it you would put the tens in the stem column and put the variations of it in the leaf ex, 256, 257 and 258 would be 25 l 6 7 8. So with that you would be sorting the numbers 256 257 and 258 in a very small form. The name "Stem and Leaf" helps me remember how it works because I think the stem is the base of the number, and the leaf are the variations of the number ex, 256 257 and 258. The base would be 25, and the variations would be 6, 7 and 8.
ReplyDeleteWow, you kids are getting really good at communicating you math thinking. By talking about it and explaining it, you seem to be reinforcing your understanding.
ReplyDeleteKeep up the good work.
wow. i didn't know that a stem and leaf plot even existed!i think that a stem and leaf plot is a cool version of a bar graph. :)
ReplyDeletei really like the stem and leaf chart because it is all ordered so you dont have to order them again and i think the speaker explained it well enough so that i get what it is and what to do with it.
ReplyDeletei think it is a very smart way to organize some type of data in a graph.
I think organization is a big part of a stem and leaf graph and it would be hard to read it if it the numbers wern't lined up and go
"where does this belong and where did this come from?"
A.C
I had already learned about stem and leaf plots so this just reminded me of all the things I learned last year. I always find that stem and leaf plots are easier then the other ways I know of. I think the stem and leaf plot makes sense because it is basically a bar graph that shows numbers instead of percentages.
ReplyDeleteI really liked the stem and leaf plot. It was a very fool-proof way to organize your data, and it made finding the mode and median so much easier. When I see data that has many numbers as well as a wide range, I get a bit overwhelmed, but with the stem and leaf plot, you can put it into a simple chart. I actually got sort of exited when I saw that a stem and leaf plot can reassemble a bar graph! I also really liked that the chart is called stem and leaf, instead of a math term, because stem and leaf are very easy words to remember. A tip for remembering what stem and leaf both mean, is to remember that in a plant, the stem is the bigger part, the base, (Tens and hundreds) and the leaf is the smaller part ( ones).
ReplyDeleteAdelia and Michelle
Sorry if this comment was posted twice i wasn`t sure if I sent the comment the first time
For me, the stem and leaf plot was really confusing. However, when I watched this video it really helped me understand the concepts of this chart. I think that the more you practice with this graph, the more you understand it. I also think that when you line up the numbers, you have to be really careful because if the numbers are all over the place, it's almost impossible to read
ReplyDeletewow that was really informative i now know what a stem and leaf is i thought it was different thanks for posting that ;)
ReplyDeletei also liked that it really explained it even the hundreds
Thank you very much for posting that video! That was a very useful video. I like how well they explained the stem and leaf plot. My favourite part is how easy it is to find the median and mode in the stem and leaf plot. I never thought that is what it actually was. I really like the whole concept of stem and leaf but you have to be %100 percent accurate to use it.
ReplyDelete