Here's a typical graphic from my web app:
It shows the performance of grades 1-12 on each of four tasks (Add, Subtract, Multiply, Divide). But this is only for whole numbers. Behind each of the other tabs (for different types of numbers), the exact same thing is repeated.
I'd like to be able to represent the contents of all five tabs in one chart, so that the overall performance can be seen in one glance, without having to jump around the tabs, hiding one view to see another. It would also be nice to be able to combine the four charts that are shown into one, but that's secondary.
Can anyone suggest a better type of chart to condense this information into a more useful and visible form?