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Module Four

Lost Teeth Video

Many people don't usually lose a lot of teeth before the age of 5 (kindergarten) most of the time but the older they get the more teeth they have probably lost. They are realizing this so the teacher wants her students to make predictions on what they think their data will tell them about each grade. 

Do you remember losing your first tooth? 

The insight I get about the children's thinking about why the ranges would be different is the students thought that the range would be lower in the lower grades but the higher grades actually had the lower range of number of teeth lost. This is because some peoples teeth like to stay longer than others but once they get to a certain age they will have lost multiple teeth because we need to grow our adult teeth. 

I think it is important that the students are able to state the highest and lowest numbers in their data. I also think its important that they are taking into account the students who don't know how many teeth they lost because they still need to be included into the data. The students are also able to state what the range of the data is which I think it very important. They talked about what number had the most amount of data but they didnt use the word "mode". I don't know if this is because they didn't know it had an actual name or because they just forgot. Either way they know what they are talking about for the most part they just didnt know the right name for it. 

Was there anything else you noticed about the data they collected?

Stem and Leaf Plots

I remember using Stem and Leaf Plots in elementary school and always thought that they were pretty cool type of graph to use. I remember my teacher talking about how using stem and leaf plots help with learning place value, this article confirmed that. I liked how the teacher showed the students this activity while talking about the students mother's age. She did each of the ages one at a time by first using the number in the tens place and finding that row and placing the one place value in the row on the other side of the line.

Do you like Stem and Leaf Plots?

Two Questions 

What is the difference between a bar graph and a histogram?
The difference between a bar graph and a histogram is used to show distributions of variables where as a bar graph is used to compare variables. Now a days Line graphs have usually been used instead of histograms, I think this is so that students don't get them confused with bar graphs.

Would you rather use a histogram or line graph?

Find an example of a line graph and share on your blog. Describe the data used in the graph and why the line graph is appropriate representation.
The data in the graph is how many push-ups a person is doing each day for a week. A line graph is appropriate because it lets you see how many he does each day, which day he does the most and the least. It also allows you to be able to count the number of push-ups the person did all together. 

Do you think a line graph is the best way to show this data?

Comments

  1. UnknownFebruary 7, 2018 at 4:19 PM

    Great job on your blog. I really like your graph.
    I honestly don't remember losing my first tooth. I have vague memories of putting teeth under the pillow and getting money during the night though. Lol Does that count??

    The kids in the video did a great job collecting their data and making their charts. I noticed that they were all so well prepared to present, and their charts were all neat and well organized.

    I do not recall ever using the stem and leaf graph except when using it for place value. I didn't know that is what I was using though. I guess it's alright, but honestly if I had a lot of data to record, I would probably mess it up.

    I don't have a preference between the two graphs, as I rarely ever use graphs teaching History. Either seem to be easy to use though.

    I don't know if it is the best one to use, but I like the way it goes up and down. To me it makes it easier to understand.

    ReplyDelete

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