Create an ambiguous analysis task in which students must decide why each item is the one that is not like the others.
What would it be like if students graphed characters from stories? Historic leaders? Elements from the period table? Objects in space?
What separates difficulty from complexity? And why do complex tasks lead to much more natural differentiation?
Who would win in the Tournament of Least Useful Geometric Shapes or Bravest Shakespearean Characters? Create an academic tournament and watch your students' brains sweat!
Here's a simple task that will add complexity to any content from any grade level!