and a Nano in a nifty 3D printed box up top to do some math and display the number of cans remaining as a simple bar graph. The sensor reads one bay, and the code multiplies by two to get the total.

A bar chart is a simple and effective way to represent data. The title shows you what you are interpreting. The vertical and horizontal lines are called axes. The horizontal line is called the x-axis.

The Chuckle Brothers demonstrate how to use a simple bar chart to show information about the popularity of a meal. Students could be given a number of small toys or plastic animals which represent ...