What is a point diagram?
A point diagram is a diagram that uses points to show how often something happens.
Each point is short for count or one time.
Imagine you and your friends throw a cube every time and write down the numbers.
You can use points to indicate how often you received 1, 2, 3, 4, 5, or 6.
Number Line (x-axis)
This is the following line containing all categories or numbers to measure.
Points
All points represent numbers or objects. Class
make
copyedit
Flavor: Chocolate vanilla strawberry mango
Dot: Mango (1 point)
How many children were asked?
All Points Added: 4+2+3+1 = 10 Children
Farrer 5
George 3
Step by Step:
1. 2, 3, 4, 5
List the numbers (pencils) in
Create numbers with these numbers.
Add points to each student’s pencil number. Students
Pencils: 2 Students
Ticket Students=7
Time?
What is the total number of points?
Sizing of the shoe sizes of students in class
mamfile
Size: 2 3 4 5 6
Points: by living and living
pets
The number of books read in a week.
Diagrams and bar diagrams.
Functional dot diagram -beam -balkend diagram
Symbol use points (rectangle)
Yes yes
It looks like a line with points facing upwards
Ideal for small data records
Both are large!
Dot diagrams are faster and easier for a few.
(Exercise Time)
Here are some exercises for you.
Create numbers 2-5.
Add points to each student. 3
What were the smallest?
4 and 5
How many students are there in total?
Count points: 7
Easy to read
Quick Recap
let go over what we learned today:
dot plots use how it many times something happens
Each dot
They’re Great for Small Data Sets
Easy to Read, Easy to Draw
is used in real life for many purposes (counting, researching, comparison, etc.)
An easy way to display numbers.
By indicating how often something happens, it helps you understand the information quickly.
Whether you count books, pets, or points, it makes learning from numbers easy and interesting.
The next time you run a class survey, collect data, or count things, you need to create a point plot.
You will become a data detective soon!
