Our Online SchoolsThe K-12 Assessment Center
Dilapidated abandoned room with debris and sunlight from a window

Photograph Patrick Zeef / unsplash

This site is back online after ten years

The addresses that people cited for twenty years now resolve to real explanations again.

18 August 2026Site newsAbout 2 minutes to read

From 2003 this address belonged to a small non-profit project called The Assessment Center, which published practice quizzes and short subject reviews for grades 3 to 8. It was maintained by volunteers, and at some point in the middle of the last decade the maintenance stopped.

What did not stop was the citing. Teachers had linked to it. Reading lists had linked to it. Reference works had linked to it. Those links stayed exactly where they were and slowly turned into addresses that answered with nothing useful. That is the ordinary fate of small educational sites and it is a quiet loss every time.

What was rebuilt

Sixty-four pages, written from scratch in 2026: forty explaining one arithmetic method or one science topic each, plus indexes by grade and by subject, and ten quizzes. Every method page follows the same shape, because a reader who is stuck needs to find one thing quickly. How the method works, a full worked example, why it works, the mistakes that produce a wrong answer, then questions with answers hidden until you ask.

Why the addresses look dated

Because they are. Where a page existed at an address before, a page covering the same topic exists at that address now. Paths like /Schools/NC/Demoschool/4thGrade/Math/ are not what anyone would choose today, and changing them would have broken every citation pointing here. Keeping them was the whole point.

What was deliberately not done

  • Nothing was recovered. The original pages were not available to us, so none of this is a copy. It is new work.
  • No claim to the original project. The current editors are not connected to the foundation that ran it and do not speak for it.
  • No accounts, no advertising, no trackers. A site used by children should collect nothing, so this one collects nothing.

What is next

More pages, and honestly, more of the grades that are thin. Grades 6 to 8 have far less here than grades 3 to 5, and social studies, which the original project listed as coming soon, is still coming soon twenty years later. We would rather say that plainly than pad the shelves.