How we research, write, and review every worksheet, lesson page, and curriculum note on PrintNum — so you can trust the resource you hand to a child.
Every worksheet layout, math content block, and lesson page on PrintNum is reviewed by at least one member of the PrintNum Education Team — a current or former K-6 classroom teacher — before it is published.
We align with US Common Core State Standards (K.CC.B.4, K.CC.B.5, K.OA.A.4, 1.NBT.B.2, 1.OA.C.6) and Singapore Math's concrete-pictorial-abstract progression. We do not claim to replace your state's official standards; we are a supplemental tool.
We design for the cognitive and fine-motor stage of each grade level. Worksheets for ages 3-4 use large outlines and high-contrast cues. Worksheets for ages 7-8 introduce place value and operations explicitly.
All lesson content, classroom activity ideas, and worksheet layouts on PrintNum are original work of the PrintNum team. We do not reproduce third-party curriculum text.
PrintNum is an unofficial, independent educational tool. We are not affiliated with, endorsed by, or connected to any children's TV show, broadcaster, or character franchise. Any third-party references are descriptive only.
If you spot a math error, an age-inappropriate layout, or a broken download, please contact us. We aim to correct confirmed issues within 7 days.
The PrintNum Education Team is a rotating panel of three to five practicing and retired K-6 teachers. We publish first names and a short bio on our About page and update the panel yearly. (See /about for the current roster.)
We run every layout through a 4-point checklist: visual complexity, fine-motor demand, cognitive load (matching the CCSS standard), and a teacher classroom test. Worksheets that fail any check are revised before publication.
No. We do not run sponsored lessons or accept payment for placing any product inside an educational page. Our optional Gumroad bundle is the only paid product on the site.
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