|Strap yourselves in. Your hands must be this small to ride this ride.|
My challenge was how to build this. At its most basic level, this is a floating bar chart. And Ann Emery has a great tutorial for doing just that in Excel. But I didn't take that particular route this time because of how I need these charts to lay out. You see, absences for any given classroom total no more than 70 in a month...but referrals are no more than 13. Excel isn't going to let me push the edge of the chart off the lefthand side of the worksheet if I keep the x-axis the same on both sides, meaning I ended up with a ton of blank space. I suppose I could put attendance on the left and discipline on the right, but hey, what's Excel without some challenges?
So, how do you build a backwards bar chart?
Create your horizontal bar chart the usual way, then fuss a little bit with the axis settings.
In terms of labels, I'm going to leave them off. If you understand how one is laid out, then you can understand a whole school's worth. The numbers themselves aren't the big idea with this visual. It's the patterns and comparisons we're after. When we've identified those, we're ready to ask some deeper questions and dig into the numbers in a different way. These charts are the starting point for conversations...not the end...even if that seems a little backwards.