A one-to-one pictograph represents each data item with exactly one picture, so the number of pictures in a category directly gives its frequency. Interpreting such a graph includes reading category labels and the key, comparing categories by more, fewer, or equal amounts, and finding totals or differences by counting and using addition or subtraction; keys in which one picture represents multiple items are outside this scope.
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Detailed Explanation: Interpret pictographs with a one-to-one key
In a one-to-one pictograph, each picture stands for exactly 1 item. So, count the pictures to find the number in each category.
Example: Favorite Fruits
Key: 🍎 = 1 student
| Fruit | Students |
|---|---|
| Apples | 🍎 🍎 🍎 🍎 |
| Bananas | 🍎 🍎 🍎 |
| Oranges | 🍎 🍎 |
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Find the number of students who chose apples.
Count the apple pictures: 4.
So, 4 students chose apples. -
Compare apples and oranges.
Apples have 4 pictures, and oranges have 2 pictures.
Since , more students chose apples. -
Find how many students chose apples or bananas altogether.
Apples: 4 students
Bananas: 3 students
So, 7 students chose apples or bananas altogether.
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Find how many more students chose apples than oranges.
So, 2 more students chose apples than oranges.
Always read the category labels, check that the key shows one picture for one item, and then count, add, or subtract the pictures.
Learn by doing: Interpret pictographs with a one-to-one key
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Practice:
Graphing - Pictogram (Ones) - Total of Series
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Download/Modify Free Grade 2 'Interpret pictographs with a one-to-one key' Worksheet
Print this free 'Interpret pictographs with a one-to-one key' worksheet to practice this skill away from the computer. Click 'Modify' to easily customize this worksheet to your exact needs.
This Worksheet Includes:
- Graphing - Pictogram (Ones) - Total of Series
- Graphing - Pictogram (Ones) - Read Value
- Graphing - Pictogram (Ones) - Difference of Two
- Graphing - Pictogram (Ones) - Which is More
- Graphing - Pictogram (Ones) - Which Two are Same
- Graphing - Pictogram (Ones) - Sum of Two
- Graphing - Pictogram (Ones) - Read Category
Units Teaching This Skill
These adaptive units introduce, teach, or reinforce this skill (Interpret pictographs with a one-to-one key) through scaffolded problems that grow in difficulty as concepts are understood.