MathGrades K-8
Illustrative Mathematics (Kendall Hunt OER)
Kendall Hunt Publishing / Illustrative Mathematics
Judge anthropic/claude-opus-4-7 · Signal Studio judge (claude-opus-4-7) · 2026-05-25
100
Gateways 3/3 Meets% indicator
exact match
Agreement vs gold
Indicator level — gold and the judge as two raters over the rubric criteria.
Exact match
100.0%
29 indicators vs gold
Weighted κ
1.00
ordinal-weighted agreement
MAE
0.00
lower is better
Signed bias
+0.00
no bias
Gateway rollup
Indicator scores rolled up to EdReports gateway ratings (sequential gating + no-0s cap), gold vs judge.
G1 · Focus and Coherence
20/20 pts
GoldMeets
→JudgeMeets
agreeG2 · Rigor and Mathematical Practices
16/16 pts
GoldMeets
→JudgeMeets
agreeG3 · Teacher and Student Supports
16/16 pts
GoldMeets
→JudgeMeets
agreeGateway-level agreement: exact 100% · κ 1.00 (3 gateways)
Divergences (0)
Indicators where the judge's score differed from gold. Amber = judge under-scored, blue = over-scored.
No divergences
Judge and gold agreed on every scored indicator.