Editorial Policy and Corrections

How K5Print chooses sources, checks worksheets, labels automated content, and handles corrections.

K5Print publishes material that parents and teachers put in front of children, so it has to be right. This page explains the rules we work to.

Where content comes from

Worksheets and answer keys are produced by programs we write for each skill. A set is only published if it passes checks on the output: the right number of items, no duplicates, every problem actually exercising the skill it claims to, and an answer key computed by the same program rather than typed by hand. Standards references (such as CCSS codes) are included so you can see where a skill fits.

Learn articles are adapted from Simple English Wikipedia and Wikijunior, both written for young readers. We keep their prose and credit their contributors. We add facts only from named sources: Wikipedia infoboxes, Wikispecies, USDA FoodData Central and Wikimedia Commons images with a free licence. Every page shows the source and the licence.

Words pages use Wiktionary for definitions and word histories, Tatoeba for example sentences and Open English WordNet for related words.

How we decide what to leave out

We would rather publish less than publish something wrong. Our programs reject a definition or sentence when they cannot confirm it is clean and appropriate for children. We keep a block list for sensitive topics in example sentences, we only use sentences whose every word is one that appears in our own reading pages, and we drop related-word lists when we cannot match them to the meaning shown on the page. Some pages therefore have more sections than others. That is intentional.

What is automated and what is not

Selecting, extracting and formatting source material is automated. Facts are not written by AI. The explanation under each worksheet skill is written by a person. Sample pages are checked by hand before a new kind of page goes live.

Corrections

If you find an error, email jun@k5print.com with the page address. We correct confirmed errors as soon as we can, answer-key errors first. For other errors we fix the page, and when the fix is a change of substance we note it on the page. Where an error comes from a source such as Wiktionary, we also fix it at the source when we can, so it does not return.