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Scaled Picture Graphs & Bar Graphs
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What you will learn from this videoWhat you will learn
- We’ll learn how to SOLVE PROBLEMS with pictographs and bar graphs!
- That we can use SCALED graphs to display information with large numbers.
- And we'll discover that this knowledge can help us display our classmates favorite ice cream, show us how we're helping the community, and even reveal what bugs are all around us!
- Discussion Questions
Before Video
Why do we make graphs to represent data or information? ANSWERGraphs help us to understand data better and help us answer questions about the data.
Bar graphs have a title, labels for categories, numbers or tick marks on one axis.
Pictographs have a title, labels for categories, a key or legend.
The heights of the bars and the value that represents help us make comparisons among the different categories.
Both help organize and represent data on a chart and help us solve problems by looking at the graph.
After Video
Why do we use scaled bar graphs and scaled pictographs, instead of bar graphs and pictographs that use single units? ANSWERScaled graphs allow us to create graphs from data where larger numbers are involved. They are easier to read.
On a scaled bar graph the intervals between tick marks represent units greater than one, and on scaled pictographs, each picture or image represents more than one item.
The greatest number of items they wanted to graph was 48 cartons of milk, so they chose a scale of 5.
Part of a picture or part of an image represents a number that is smaller than the scale unit.
No, we do not always need to know the exact amount when we are making comparisons between categories. Looking at the heights of the bars or the number of pictures in each category compared to other categories helps us answer the questions "which category has more" and "which category has fewer".
- Vocabulary
- Survey DEFINE
A way to collect data by asking a question.
- Data DEFINE
Information.
- Bar Graph DEFINE
A graph that uses bars to organize and represent data.
- Pictograph/Picture Graph DEFINE
A graph that uses pictures to organize and represent data.
- Horizontal DEFINE
Going side to side.
- Vertical DEFINE
Going up and down.
- Key DEFINE
Explains how many items one symbol or picture on a pictograph represents.
- Scale DEFINE
The number used to represent one unit length of a bar or one picture on a pictograph.
- Scaled Picture or Pictograph Graph DEFINE
A pictograph that uses a picture to represent more than one unit.
- Scaled Bar Graph DEFINE
A bar graph that uses intervals of more than one unit.
- Survey DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide
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Level 1
Which type of graph has a key or legend?
Level 2
When would you choose a scale of 10 instead of 2 for a scaled bar graph?
Level 3
On a pictograph where 1 smiley face represents 20 votes, how many votes do 2 and ½ smiley faces represent?
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