Publication standard
An indexable worksheet page must pass generator, answer, fixed-seed, internal-link, metadata, and build checks. Preview concepts that lack their promised worksheet format or benchmark-level mapping are marked noindex and excluded from the sitemap.
Authorship and AI assistance
Software tools, including generative AI, may assist with research organization, code, and draft explanatory copy. We disclose that process rather than implying a credentialed human review that has not occurred. Live worksheet questions and answers are generated and recomputed by deterministic mathematical code, not a language model.
Sources and standards
We prefer first-party sources from standards bodies and state education agencies. We summarize alignment in our own words, link to the source, and do not reproduce entire standards documents.
Corrections
Confirmed mathematical errors are corrected promptly and affected fixed samples are regenerated. Material content corrections update the page check date. Minor spelling and style changes may be made without a separate notice.
Commercial separation
Advertising does not determine which skills, grades, or recommendations we publish. Ads are not placed inside generated worksheets or next to builder controls and download actions.
Last updated: July 15, 2026