No, freeCodeCamp uses the CC-BY-SA-4.0 License for the curriculum material.
However, there are some conditions you must meet in order to not break the license agreement.
You can read the entire license agreement, here: https://github.com/freeCodeCamp/freeCodeCamp/blob/master/curriculum/LICENSE.md
Also, the team would probably be open to translating the materials on the actual website, there’s actually a guide: Guidelines for Translating Free Code Camp into any language
Edit: The “no” was answering your first question. It would be okay to post the translated lessons on your blog, so long as you abide by the license above.