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Intro to Data: Pictographs & Bar Graphs
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What you will learn from this videoWhat you will learn
- We'll learn how to display data on PICTOGRAPHS.
- We will also learn how to display data on BAR graphs.
- And will explore how this knowledge can help us compare our favorite animals, colors and even foods!
- Discussion Questions
Before Video
What is data?ANSWERData is a collection of information we get from taking measurements.
Students may identify color, size, type, use, etc.
Answers depend on quantities presented to students. An example: There are 5 red counters and 8 blue counters.
I could draw a picture of 5 red and 8 blue counters. I could use the numbers 5 and 8. A friend and I could show the two numbers on our hands.
Answers will vary.
After Video
What is a pictograph?ANSWERA pictograph is a drawing or type of graph where the number of pictures in each row represents the count of items in a category.
A bar graph is a drawing or type of graph where the height of each bar represents the count of items in a category.
I can represent categorical attributes like color, or belonging to a particular group, using a pictograph or bar graph.
Graphs are helpful because they allow us to visualize data in a more concrete way. They also allow us to compare groups more easily, and more concretely, than if we just had numbers.
Titles are important because they let the person reading the graph know what it represents. If a graph is not labeled and does not have a title, it is a drawing without any context and so gives us no useful information.
- Vocabulary
- Graph DEFINE
A drawing that displays information.
- Data DEFINE
Information we collect, like the colors or lengths of a group of objects.
- Tally Marks DEFINE
Lines we draw when counting. There are four vertical tallies with the fifth on a diagonal through the four vertical lines. Tally marks make groups of five.
- Pictograph DEFINE
A graph that represents the count of objects in each category using a number of pictures.
- Key DEFINE
A key on a pictograph shows how many each picture in the graph represents.
- Bar Graph DEFINE
A graph that represents the count of objects in each category using the height of a bar.
- Graph DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide