I think I will use this post to track strange and unusual choices for some of the CK12 content. This is certainly not to say that all of it is peculiar, but there certainly are some decisions that most teachers would like avoid.
Powers: When explaining base and exponent of a power, you likely would use an example where the base and exponent are different numbers; that helps avoid confusion. For example, something like is a good power for this. But, in a section called “Powers and Exponents” for 6th grade is this:
This might not be so bad if it were not stuck into the text as an image (the exact image I have here). If it were LaTeX, it would be a simple edit.