Data Visualization: Pictograms, Bar Charts, and Pie Charts

Data Visualization: Pictograms, Bar Charts, and Pie Charts

Learning Objective

At the end of the lesson, you will be able to understand the advantages and disadvantages of presenting data on pictograms, single and multiple bar charts, and pie charts.

What do you already know about presenting data on pictograms, bar charts, and pie charts?

Advantages of Pictograms

Pictograms use visual symbols to represent data, making it easy to understand and visually appealing.

Disadvantages of Pictograms

Pictograms may not accurately represent numerical values and can be limited in displaying complex data.

Example Data for Pictogram

Number of books read by each student in a class.

Advantages of Bar Charts

Bar charts allow easy comparison between different categories and can display large amounts of data.

Disadvantages of Bar Charts

Bar charts may not be visually engaging and can be less effective for displaying percentages or proportions.

Example Data for Bar Chart

Favorite food choices among students in a school.

Advantages of Pie Charts

Pie charts show proportions and percentages effectively, making it easy to understand relative data.

Disadvantages of Pie Charts

Pie charts can be challenging to accurately compare and may not be suitable for displaying large amounts of data.

Example Data for Pie Chart

Distribution of pets owned by students in a class.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.