[rsp1984]

Pardon my ignorance but can somebody educate me on what K-13 means? I know about K-12 and have seen K-14,-16, ... as well but I've never seen K-13 in an international context.

At my local school in Germany the final year was called K-13 but it's probably not what's meant in the article.

[bsznjyewgd]

I think it just means kindergarten to year 13. At least, Ontario (Canada) used to have a 13th year, but they phased that out 2 decades ago into just K-12 as well.

[SamReidHughes]

Kindergarten through calculus. Calc I and II are traditionally a first year undergrad courses, if you don't take it as an AP class.