There is this one lesson in Algebra I where students are required to take a histogram and convert it to a list of number. Then take that list of numbers and determine the mean, median, mode, range, Q1, Q3, Min, Max, and interquartile range. The problem was that I couldn't find nice looking histograms anywhere online. So, I made my own on desmos:
To change the bars all I have to do is click and drag the points where ever I want. For today's lesson I called students to the computer to create a histogram for us, then we found the information. Want to use the desmos graph? Here's a link.