i-Ready
Assessment-linked adaptive instruction
We don’t score or rank this tool. Our publisher also builds learning software in this area, so we give you the verified facts below and leave the judgement to you. You can run the Four Mismatches Test on it yourself.
Independence: our publisher builds learning products too. We never review or score its products, and no tool pays to be listed or to rank higher — how we assess fit.
What it does
What the AI actually does — A computer-adaptive diagnostic that adjusts difficulty in real time (targeting ~50/50 correct) to place a student on a cross-grade progression.
Why it was built — Give teachers a fast, accurate read on each student's true instructional level, then auto-build a personalised path.
Who built it
- Company
- Curriculum Associates, LLC
- Founders
- Frank Ferguson (Curriculum Associates; full founder list [TBD])
- HQ / origin
- North Billerica, Massachusetts, USA
- Founded
- Curriculum Associates 1969; i-Ready 2011
- Model
- B2G
- Ownership
- Curriculum Associates majority-owned by Berkshire Partners & Permira (2017)
- Exam systems
- US Common Core
- Languages
- English · Spanish
We record durable facts only — no funding-raised or user-count figures. Unverified fields are marked [TBD] rather than guessed.
Where it sits
i-Ready is on the Learning Tools Index, in maths & adaptive practice, built in United States.
Related & alternatives
- IXL LearningAdaptive practice and diagnostics across subjects
- ALEKSAdaptive maths and science, grounded in knowledge-space theory