Radar Chart

What is a radar chart?

A radar chart, also known as a spider chart or star chart, is a type of data visualization used to display two or more dimensions of multivariate data. These dimensions are usually quantitative and go from zero to a maximum value, forming a spider web shape. 

Why do we use radar chart?

• Radar charts excel at displaying how different aspects of something measure up against each other. Imagine a company evaluating new employees on communication, teamwork, and problem-solving skills. A radar chart allows you to see how each candidate performs in these areas relative to one another. 

• Radar charts can reveal trends and outliers in data. By tracking changes in the shape of the "web" over time, you can identify improvements or declines in specific areas. 

• Compared to tables with raw data, radar charts offer a visually engaging way to present information. The color-coded "spider web" format makes it easier to grasp the relationships between different variables and identify patterns. 

Here are a few examples of radar chart:

These videos explain about radar charts:

Even though radar chart is useful for many purposes, it may not be suitable to be used to teaching primary school students as it was a little bit complicated to be analyzes by primary school students. It will be more unlikeable in the context of teaching grammar because radar chart is often used to point out numbered statistics. Probably it can be used by teachers when teaching subjects such as science and mathematics.