Virginia SOL Math / Grade 3 / Probability & Statistics
Pictographs & Bar Graphs
What you'll learn
- Formulate questions and collect or organize data
- Represent data with pictographs and bar graphs
- Analyze data and answer questions about it
Words to know
- Data —
- information you collect
- Bar graph —
- a graph that uses bars to show amounts
- Pictograph —
- a graph that uses pictures to show amounts
- Scale —
- the amount each unit or picture stands for
Why it matters Graphs turn a pile of numbers into a picture, making it easy to see which is most, least, and how groups compare.
Worked examples
Model ItI do
Use the bar graph to answer: which color is most popular, and how many chose it?
The tallest bar is Blue, reaching 9. So Blue is most popular, chosen by 9 students.
Try It TogetherWe do
Using the same graph, how many more students chose Blue than Green?
Blue is 9 and Green is 4. Subtract: 9 − 4 = 5. Five more students chose Blue than Green.
Now YouYou do
How many students chose Red or Yellow in all?
Read both bars and add. Check your answer in the back.
Practice
Mastered 0 of 11
Warm-up
Ease in with the basics.
1.In a pictograph, each picture stands for 2. How many does 3 pictures show?
2.A bar graph shows Red at 5 and Blue at 8. Which color is more popular?
3.A bar graph shows Cats 6 and Dogs 9. How many more chose Dogs than Cats?
On Level
The core Quick Check from the book.
1.In the graph, which color did the fewest students choose?
2.How many students chose Yellow?
3.How many students were surveyed in all?
4.If each picture in a pictograph stands for 2, how many does 4 pictures show?
5.How many more chose Blue than Red?
Challenge
Stretch your thinking.
1.A pictograph uses each symbol to stand for 5 books. One row has 4 symbols and another has 6 symbols. How many books is that in all?
2.A bar graph shows: Apple 7, Banana 4, Grape 9, Orange 6. How many students were surveyed in all?
3.In a pictograph each picture equals 2 pets. Cats show 3 1/2 pictures. How many cats is that?