Lost Teeth Video
I believe that the purpose for questioning the students
about the range for the different grade levels is, so they can share what ideas
and thoughts they took from collecting the data the previous day. They can gain
an understanding of the differences between the grade levels in reference to
the number of teeth lost in each grade. Knowing that the Kindergarten classes
have probably lost the fewest number of teeth they know that the range will be
smaller, whereas, for the older grades the ranges will be farther apart. I
think the students did well in trying to explain the features of the data, they
had some trouble with wording but that is common for students. They were able
to explain the difference between their class and the other class. I liked that
they were surprised that students in the lower class had already 12 teeth, but
that they made a connection that they might have had those teeth removed by the
dentist. I think it was higher level
thinking that the children thought this was a possibility, what about you?
For the third-grade class a new category was entered into the discussion, and I
really liked the explaining of the student “they lost the teeth so long ago
they can’t remember.” Again, I think the students did well explaining the graph
they made, but I feel like they were a little confused on the “clump” on the
graph. The representation of the information on the graph was a little
difficult for the students to understand due to the difference in size and the
placement of the data on the graph.
Stem and Leaf Plots
Within the first few sentences I was surprised at what I was
reading, having children in grade school currently I have not seen this idea of
statistics being taught at all. I also don’t recall hearing about the
stem-and-leaf plots prior to this article and module. Do you have any experience with this? I found it interesting that
the idea behind the stem-and-leaf plot if you will be that of number placement.
As I read the article and noticed the information about the “other uses” I
realized that while in Barcelona the bus charts were listed the same way as the
example. I had no issue reading the bus
schedule while in Barcelona, but had no idea that it was considered a
stem-and-leaf plot, pretty cool huh? I think including this graphing tool
will be beneficial to the students as it allows them to see another way to
represent the data.
What is the difference between a bar graph and a histogram?
Histograms are a way to graphically represent a given
frequency. Histograms are similar to bar graphs but the histogram groups the
numbers into ranges. Bar graphs are more useful when the data is categorical,
and space should be left between the bars unlike in the histogram. I wasn't aware of the differences between the bar graph and the histogram until reading about it, but I found the gaping or no gaping to be most interesting, have you noticed the difference before?
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 an appropriate
representation.
The data that is being represented in this line graph is the temperature changes in Seattle in March of 2012. It has given us the high and low for 14 days so that it can be graphed. This graph is showing the change in the temperature over the 2 week span of temperature collection and is being used in an appropriate manner.
Good Morning Tracie! I hope your daughter feels better and it’s ok we couldn’t meet. In the first section I had to really focus on the video to see where the students were going with their comments. In the aspect of the high order thinking skills, I do agree that most of the students drew on previous knowledge and experience to come to the conclusions that they did. I liked the third groups use of the vocabulary. I was very confused using the word “clump,” almost like the teacher was trying to get them to see that there were sections of the data that were similar in number. The students were hit or miss with understanding what the teacher meant.
ReplyDeleteI remember stem-and-leaf plots from middle school and high school math. I don’t recall hearing about it in elementary school, that was mostly bar and pie graphs that I remember. I find that very cool that you had a real-life experience with the stem-and-leaf plot. If you could find a picture that would be a fun thing to share. I’ve never had the experience of riding a bus for public transportation, but I would love to one day.
Before reading this, I don’t think I’ve ever used a histograph. I don’t remember using it in school. The difference between the two were easy to see. I was used to the bar graph since it was very familiar to me. I was intrigued by the histograph since it shows the frequency and looks similar but different at the same time. I want to be able to share this with my students.
Your example of the temperatures in Seattle, WA looks really good and it was very easy to read.
Thanks for the well wishes, she is enjoying a day in the couch watching shows...
DeleteI also had to focus on the video and I actually watched it multiple times to gather the responses for the questions. I didn’t hear the median talked about either. I remember not losing a tooth in kindergarten and being so bummed about it, I can’t imagine losing so many teeth in those grades. Even my son in 3rd grade has only lost 3 teeth. I think it would have been interesting to make note of boy vs. girl. Since some say that boys loose teeth slower than girls.
I don’t recall much about stem-and-leaf plots, but I also found it interesting that it dealt with place values. I tried looking for pictures of the bus schedule online but the options are not the plot, I think I have a brochure so I’ll look and see what is on it.
I agree histograms and bar graphs are similar, which is why people confuse them, but I liked learning that the gap makes the difference in most cases.
I agree with the pie chart and also a bar graph, some would say a histogram, do you agree?