Homeschooling Resources

Deep Space Sparkle
Overview: Huge library of art projects, lesson plans, and how-to videos designed for kids, many free samples plus paid membership for full access.
Grades/Ages: PreK–8.
Cost: Free sample lessons; paid membership options for full library.

Art for Kids Hub
Overview: Family YouTube channel with step-by-step drawing videos kids can follow along with; covers animals, holidays, people, and more.
Grades/Ages: Elementary–middle school.
Cost: Free via YouTube; subscription site with ad-free experience is about $5/month.

Google Arts & Culture
Overview: Explore artworks, museums, and virtual tours from around the world; includes interactive experiments and art games.
Grades/Ages: All ages.
Cost: Free

KinderArt
Overview: Free lesson ideas for drawing, painting, sculpture, and crafts; covers techniques and seasonal themes.
Grades/Ages: PreK–8.
Cost: Free core resources.

BibleProject Classroom
Overview: Free online video courses taught by biblical scholars that walk through books of the Bible and help develop strong reading skills and theological foundations. Includes detailed session notes and reflection questions.
Grades/Ages: Teens, adults, and mature upper-elementary learners.
Cost: Free

Easy Peasy All-in-One Homeschool (Bible-focused units included)
Overview: Entirely free Christian homeschool curriculum covering Bible, reading, writing, math, science, history, art, music, PE, logic, and more. Organized by daily lessons and easily adaptable.
Grades/Ages: PreK–8 (and separate high school site).
Cost: Free (donation optional)

ABCJesusLovesMe – Free Bible Curriculum
Overview: Free downloadable preschool curriculum for ages 12 months to 5 years, with Bible stories, music, handwriting, and developmentally appropriate activities grounded in Christian faith.
Grades/Ages: Toddlers–5 years.
Cost: Free for family use

Trueway Kids
Overview: Vast collection of free printable Bible lessons for kids, including Old and New Testament stories, games, coloring pages, activities, and crafts. Great for hands-on learners.
Grades/Ages: Preschool–elementary.
Cost: Free

Wander Homeschooling Free Printable Bible Curriculum List
Overview: A curated list of downloadable, free Bible-based curriculum options from various sources—perfect for serious planning and comparison.
Grades/Ages: K–12.
Cost: Free

AmblesideOnline – Bible Reading Plan
Overview: Free Charlotte Mason–style classical homeschool curriculum including a multi-year Bible reading schedule, often layered with narration and reflection exercises.
Grades/Ages: Elementary–middle school.
Cost: Free

iCivics 
Overview: Award-winning civics games, lesson plans, DBQs, and curricula.
Grades/Ages: Elementary–HS.
Cost: Free

Bill of Rights Institute 
Overview: Primary sources, lessons, and online courses on the Constitution, rights, and U.S. history.
Grades/Ages: MS–HS.
Cost: Free

EDSITEment (NEH)
Overview: National Endowment for the Humanities site with high-quality lesson plans, primary source guides, and multimedia across U.S. and world history, civics, and literature.
Grades/Ages: K–12.
Cost: Free

Teaching American History
Overview: Extensive primary source documents, audio lectures, and study guides focused on U.S. history and civics.
Grades/Ages: Middle school through high school.
Cost: Free

CrashCourse (YouTube + website)
Overview: Engaging video series on U.S. History, World History, Government, and more. Animated with clear explanations, widely loved by teens.
Grades/Ages: Middle school–college.
Cost: Free

Zinn Education Project
Overview: Lessons and teaching materials that highlight marginalized voices and people’s history perspectives.
Grades/Ages: Middle school–high school.
Cost: Free.

Digital History (University of Houston)
Overview: Rich online textbook with timelines, primary sources, and teaching resources for U.S. history.
Grades/Ages: High school.
Cost: Free

Stanford History Education Group (SHEG/Reading Like a Historian)
Overview: Primary source lessons and historical thinking skill development. Focuses on evaluating evidence, sourcing, and corroboration.
Grades/Ages: Middle school–high school.
Cost: Free

General printables (multi-subject)

Homeschool Share — big library of free lapbooks, unit studies, and templates (great for hands-on learners).                               

123Homeschool4Me — thousands of free worksheets across math, ELA, science, history, plus preschool packs.                                

K5 Learning — large, well-organized free worksheet library (reading, math, grammar, science).                                                   

Worksheet Genius — free printable generators for math & English

The Measured Mom (Freebies Index) — many free literacy & math printables (download via posts/newsletter).                    Grades: PreK–2(+)

Math-focused

Math-Drills
Overview: A large library of over 58,000 free printable math worksheets covering basic facts, operations, fractions, geometry, and more.
Grades/Ages: Elementary through middle school.
Cost: Free

Zooniverse — Citizen-science projects kids can do at home
Overview: Join real research (wildlife IDs, astronomy, history transcript work) through simple, guided tasks; Classrooms tool available.
Grades/Ages: Elem–HS (project-dependent).
Cost: Free

PhET Interactive Simulations — Inquiry STEM sims
Overview: Research-based, interactive simulations for science and math with a huge activity library; run in browser or download.
Grades/Ages: Elem–HS (and beyond).
Cost: Free/open (some studio/customization tools are paid, but sims & many activities are free). 

Chrome Music Lab — Playful music + sound experiments
Overview: Hands-on music explorations (Song Maker, Kandinsky, Oscillators) that connect music with math, art, and science—great for auditory & visual learners.
Grades/Ages: K–8+.
Cost: Free

Tinkercad — 3D design, codeblocks & circuits (browser-based)
Overview: Kids design 3D models, simulate circuits (Arduino/micro:bit), and code shapes; kidSAFE, ad-free; strong teacher resources.
Grades/Ages: ~8–18.
Cost: Free

NOAA SciJinks — Weather games & explainers
Overview: Kid-friendly weather site with interactives (tornado/hurricane simulators), explainers, and some printables—sneaky fun science.
Grades/Ages: ~Grades 5–8 (younger with guidance).
Cost: Free

#MetKids (The Met Museum) — Art exploration built for kids
Overview: Time-machine navigation, videos, art prompts—great cross-over for history + art; museum also runs family programs.
Grades/Ages: ~6–12 (varies by activity).
Cost: Free online

Mightier — paid, free trial
Overview: Clinically-validated emotional-regulation program from Boston Children’s/Harvard; kids wear a heart-rate sensor while playing biofeedback-driven games; parent app + mailed “skill packs.” One subscription covers the family (multiple player profiles).
Grades/Ages: Designed for ages 6–14 (others may benefit).
Cost: $40/mo, or $34/mo (6-month prepay), or $28/mo (12-month prepay)—all typically include a two-week free trial; family use allowed.

Understood.org
Overview: A nonprofit offering articles, videos, planning tools, and community support focused on learning differences such as ADHD, dyslexia, and anxiety.
Grades/Ages: Parents of K–12 learners.
Cost: Free

Nylo.co
Overview: Family wellness app with screen-light, creative, and hands-on activities designed to foster bonding and imagination.
Grades/Ages: Multi-age families with children.
Cost: Subscription-based, with free trial.

Mind Luster
Overview: A vast platform offering 300,000+ online courses and MOOCs across programming, languages, cooking, art, business, and more—all with free certificates. You sign up, complete lessons, and request certificates (which some say carry real value for resumes). There’s even resume-building and CV tools integrated into the platform.
Grades/Ages: Upper elementary through adults (family-friendly).
Cost: Free access to courses and certificates regardless of topic or category.

Duolingo + Duolingo ABC — freemium / free
Overview: Languages for older kids; Duolingo ABC teaches early literacy with 700+ mini-lessons, ad-free.
Grades/Ages: Languages (all ages); ABC ~ages 3–8.
Cost: Core Duolingo is free with optional subscriptions; Duolingo ABC is 100% free.

BrainPOP ELL — paid
Overview: Story-driven English learning covering listening, speaking, reading, writing.
Grades/Ages: “All grades.”
Cost: Institutional pricing by quote; available via BrainPOP store.

Oklahoma School for the Deaf — Free Online ASL (ASL I & II)
Overview: Self-paced, non-credit ASL courses taught by OSD’s ASL Specialist; open to anyone, offered fall/spring with simple sign-up.
Grades/Ages: Tweens–adults (family-friendly).
Cost: Free

ASL University (Lifeprint) — Free ASL curriculum
Overview: Robust, self-study ASL lessons (ASL 1–4), videos, dictionary, and printable alphabet charts created by Dr. Bill Vicars.
Grades/Ages: Upper elementary–adult.
Cost: Free (most lesson materials).

BBC Languages (archived)
Overview: Older but still useful phrase guides, audio, and video across 30+ languages.
Grades/Ages: Middle school and up.
Cost: Free

SignSchool
Overview: Free online American Sign Language platform with vocabulary builder, interactive dictionary, and video lessons.
Grades/Ages: All ages.
Cost: Free

Mango Languages
Overview: Structured language lessons with cultural notes and practical conversations; many public libraries offer it free.
Grades/Ages: Upper elementary through adult.
Cost: Subscription ($7.99/month single language, $17.99/month all languages) or free via many libraries.

AdaptedMind Math
Overview: A game-like, adaptive online math program for K–6 students. Begins with a pretest, then customizes practice problems, quizzes, and videos based on each child's strengths and gaps. Features include built-in explanation videos (over 10,000), ongoing assessments, and progress reports you can receive by email.
Grades/Ages: Kindergarten through Grade 6.
Cost: Subscription-based; includes a 30-day free trial. Pricing typically starts around $9.95/month for a family account with up to 5 child profiles.

Prodigy Math — freemium
Overview: RPG-style math practice; optional memberships add cosmetics/extras and Science content.
Grades/Ages: ~1–8 (flexible).
Cost: Core math game is free; paid tiers from about $9.95–$29.95/mo depending on plan.

Boddle Learning — freemium
Overview: Gamified Math + ELA practice with teacher/parent dashboards.
Grades/Ages: K–6.
Cost: Core learning content is free; Premium is $9.99/mo or $69.99/yr (often on sale).

Khan Academy — free core + optional AI
Overview: Massive free library across math, science, humanities, test prep; optional AI tutor (Khanmigo) for step-by-step coaching.
Grades/Ages: K–12+.
Cost: Library is free. Khanmigo is free for teachers; $4/month or $44/year for parents/learners. 

Desmos (Calculators & Classroom Activities)
Overview: Free graphing/scientific/geometry/3D calculators and interactive activities.
Grades/Ages: MS–HS (younger with support).
Cost: Free

Math-Drills
Overview: A large library of over 58,000 free printable math worksheets covering basic facts, operations, fractions, geometry, and more.
Grades/Ages: Elementary through middle school.
Cost: Free

Khan Academy + Khanmigo (AI) — free core + optional AI
Overview: Massive free library across math, science, humanities, test prep; optional AI tutor (Khanmigo) for step-by-step coaching.
Grades/Ages: K–12+.
Cost: Library is free. Khanmigo is free for teachers; $4/month or $44/year for parents/learners. 

BrainPOP / BrainPOP Jr. / BrainPOP Science / BrainPOP ELL — paid
Overview: Animated lessons, quizzes, activities; Jr. for K–3; core BrainPOP for 3–8; Science for MS; ELL supports English learners.
Grades/Ages: Jr. K–3; BrainPOP 3–8; ELL “all grades.”
Cost (Family/Homeschool): BrainPOP Jr. $119/yr; BrainPOP $129/yr; Combo $159/yr (2-week free trial). Institutional pricing varies. 

MobyMax — freemium
Overview: Diagnostic + adaptive practice across subjects with placement tests, progress monitoring.
Grades/Ages: K–8.
Cost: Families page advertises from $7.99/month (individual plans); teachers have school options.

ANTON — free, no ads
Overview: Broad K–8 curriculum with 100k+ exercises; standards-aligned; works offline with Plus.
Grades/Ages: PreK–8.
Cost: Learning content is free; optional ANTON Plus adds features.

Boddle Learning — freemium
Overview: Gamified Math + ELA practice with teacher/parent dashboards.
Grades/Ages: K–6.
Cost: Core learning content is free; Premium is $9.99/mo or $69.99/yr (often on sale).

Curioso — paid
Overview: Kid-safe video discovery app curated for learning.
Grades/Ages: Typically 6–8+.
Cost: App shows $8.99/month on iOS; site offers a 30-day free trial and says it’s free for educators.

IXL — freemium/paid
Overview: Adaptive skills practice with real-time diagnostics across core subjects; huge K–12 skill library and progress analytics.
Grades/Ages: Pre-K–12 (Math, ELA, Science, Social Studies; Spanish available).
Cost (family): common packages include Single subject $9.95/mo, Combo (Math+ELA) $15.95/mo, Core subjects (Math, ELA, Sci, SS) $19.95/mo for 1 child (add’l children extra). Pricing page also shows an all-core $19.95/mo example.

HOMER by Begin Learning — paid, free trial
Overview: Play-based early-learning app (reading, math, SEL, creativity) that personalizes by age/level; up to 4 child profiles per account.
Grades/Ages: Ages 2–8.
Cost: $9.99/mo or $59.99/yr after a 30-day free trial.

Mind Luster
Overview: A vast platform offering 300,000+ online courses and MOOCs across programming, languages, cooking, art, business, and more—all with free certificates. You sign up, complete lessons, and request certificates (which some say carry real value for resumes). There’s even resume-building and CV tools integrated into the platform.
Grades/Ages: Upper elementary through adults (family-friendly).
Cost: Free access to courses and certificates regardless of topic or category.

Chrome Music Lab
Overview: Interactive browser tools that let kids explore rhythm, melody, sound waves, and music creation.
Grades/Ages: K–8+.
Cost: Free

Flat.io
Overview: Cloud-based music notation tool where students can compose, collaborate, and share scores.
Grades/Ages: Upper elementary–adult.
Cost: Free basic account; premium around $6.99/month.

TypingClub
Overview: Online typing lessons with games and progress tracking; ad-free school version available.
Grades/Ages: All ages.
Cost: Free basic version; premium $9.99/year.

Codecademy
Overview: Interactive coding lessons (Python, JavaScript, HTML/CSS, and more).
Grades/Ages: Middle school and up.
Cost: Free basic courses; Pro plan $14.99/month.

Tinkercad
Overview: Browser-based 3D design and electronics simulations (including Arduino).
Grades/Ages: Upper elementary through high school.
Cost: Free

Exploratorium Tinkering Studio
Overview: Maker-style projects that blend art and science—perfect elective for curious kids.
Grades/Ages: K–12.
Cost: Free instructions and activities online.

Mind Luster
Overview: A vast platform offering 300,000+ online courses and MOOCs across programming, languages, cooking, art, business, and more—all with free certificates. You sign up, complete lessons, and request certificates (which some say carry real value for resumes). There’s even resume-building and CV tools integrated into the platform.
Grades/Ages: Upper elementary through adults (family-friendly).
Cost: Free access to courses and certificates regardless of topic or category.

Fast Typer (via Poki)
Overview: A free and simple online typing game that challenges players to type six-letter words quickly before time runs out. Mistakes reset the word, and speed and accuracy earn leaderboard spots. Great for building typing fluency. Please be mindful that this resource has a lot of uneducational games on its website. They are kid SAFE COPPA Certified, though.
Grades/Ages: Upper elementary to adult.
Cost: Free to play

DonnaYoung.org – Homeschool Planners & Forms (printables)
Overview: A classic trove of planner pages, attendance logs, subject sheets, calendars, and “how to plan” guidance; now a mix of free pages plus optional subscriptions.
Grades/Ages: K–12 (parents).
Cost: Many pages free; site also advertises two subscription options.

TheHomeSchoolMom – Free Planner (printable + digital)
Overview: Comprehensive homeschool planner with lesson planning, assignments, attendance, menu planning; printable and spreadsheet versions.
Grades/Ages: K–12 (parents).
Cost: Free for newsletter subscribers (clearly labeled “subscriber exclusive”).

Vertex42 – Education templates (Excel/Google Sheets/PDF)
Overview: Free planners, attendance sheets, schedules, school calendars, and homework/assignment trackers—easy to customize and print.
Grades/Ages: K–12 (parents & students).
Cost: Free downloads

HSLDA – Recordkeeping guidance (what to keep & how)
Overview: Clear guidance on required records and best practices; good companion to the printables above.
Grades/Ages: K–12 (parents).
Cost: Free guidance page (some HSLDA services require membership, but this guide is open). 

Homeschool Skedtrack – Online planner/records (not printable, but handy)
Overview: Free web app to plan lessons, track attendance/grades, and generate reports (report cards, transcripts).
Grades/Ages: PK–12.
Cost: Free

GoNoodle
Overview: Short, active videos that get kids moving, stretching, or dancing — perfect for energy breaks.
Grades/Ages: K–6.
Cost: Free version; premium (GoNoodle Plus) available for schools.

PE with Joe (The Body Coach TV)
Overview: YouTube workouts created during school closures, still available; kid-friendly, no equipment required.
Grades/Ages: Elementary–middle school.
Cost: Free.

OPEN Phys Ed (US Games)
Overview: Standards-based curriculum resources for PE teachers, but homeschoolers can adapt games, fitness circuits, and wellness activities.
Grades/Ages: K–12.
Cost: Free.

Cosmic Kids Yoga
Overview: Story-driven yoga and mindfulness videos on YouTube; themes include adventures, animals, and relaxation.
Grades/Ages: Ages 3–10.
Cost: Free on YouTube; optional app subscription ~$65/year.

SPARK PE
Overview: Evidence-based physical education curriculum with downloadable free sample lessons; full access requires purchase.
Grades/Ages: K–12.
Cost: Free sample lessons; paid curriculum.

Internet Archive
Overview: A nonprofit digital library with millions of free books, audiobooks, movies, software, and archived websites. Includes the Open Library, which lets families borrow ebooks, and a huge collection of historical texts, classic literature, and educational materials. The “Wayback Machine” also lets you view past versions of websites.
Grades/Ages: All ages (younger kids with parent guidance).
Cost: Free

Night Zookeeper — paid
Overview: Creative writing program with gamified prompts, feedback, and challenges.
Grades/Ages: ~ages 6–12.
Cost: Pricing varies by offer; examples on official site include annual gift plans around $119.99–$154.99. 

ReadWorks — free
Overview: Research-backed reading passages, question sets, and vocab routines; printable + digital.
Grades/Ages: K–12.
Cost: Free for everyone (donation-supported).

CommonLit — free core
Overview: Large 3–12 text library, assessments, and full ELA curriculum (360).
Grades/Ages: 3–12.
Cost: CommonLit Digital + 360 Curriculum is free (under Teacher Basics in Pricing Section); schools can buy support packages.

Readability (AI reading tutor) — paid, free trial
Overview: App listens as kids read aloud and provides real-time feedback for fluency, accuracy, and comprehension; parent dashboard for WCPM and progress.
Grades/Ages: K–6.
Cost: $19.99/mo after a 30-day free trial; account includes up to 3 readers.

Read with Ello
Overview: AI-powered app that listens as children read aloud, gives feedback on pronunciation and fluency, and tracks progress. Physical books are also included.
Grades/Ages: Kindergarten through Grade 3.
Cost: Subscription around $5/month after a 14-day free trial.

Lightbox at Home
Overview: A streaming library of interactive eBooks across subjects with quizzes, read-alouds, standards alignment, and downloadable resources.
Grades/Ages: K–12 nonfiction, guided reading, and fiction content.
Cost: Subscription required; free trial available.

Grammarly
Overview: An AI-powered writing assistant that helps with grammar, spelling, punctuation, tone detection, and clarity. The free plan offers basic corrections and tone review; Grammarly Pro (formerly Premium) adds advanced features like style suggestions, full-sentence rewrites, plagiarism checks, and expanded AI writing prompts. New AI “agents” (like Citation Finder, Proofreader, AI Grader) bring context-aware writing support in Grammarly Docs.
Grades/Ages: Parents, teens, high schoolers—anyone wanting to polish writing.
Cost: Free basic plan. Pro costs about $12/month (billed annually) or about $30/month if paid monthly. 

Storybird
Overview: Creative platform where kids can write and publish illustrated stories, poems, and comics using professional artwork as inspiration. Offers monthly writing challenges.
Grades/Ages: Elementary through high school.
Cost: Some free features; premium membership around $8–$12/month.

BoomWriter
Overview: Collaborative writing platform where students co-author stories chapter by chapter, then vote on the best submissions; can create ebooks of finished stories.
Grades/Ages: Upper elementary–high school.
Cost: Free basic use; premium upgrades available for extras.

Hemingway Editor (App)
Overview: Web and desktop app that analyzes writing for clarity, sentence length, and readability. Helps students simplify and strengthen their writing.
Grades/Ages: Middle school–adult.
Cost: Free web version; desktop app one-time purchase (~$19.99).

ProWritingAid
Overview: Advanced grammar and style checker, similar to Grammarly but with deeper feedback on sentence structure, style variety, and pacing.
Grades/Ages: Teens–adult writers.
Cost: Free limited version; premium around $10/month billed annually

Mystery Science — paid (with extended free trials)
Overview: Open-and-go video lessons, hands-on activities, and mini-lessons.
Grades/Ages: K–5 primary focus.
Cost: Homeschool membership currently $109 through June 30, 2026; new members often get extended free access. 

Smithsonian Learning Lab — free
Overview: Millions of museum artifacts, ready-to-use collections, classroom tools; great for inquiry projects.
Grades/Ages: K–12.
Cost: Free

PBS LearningMedia — free
Overview: Standards-aligned videos, interactives, and lesson plans across subjects with a homeschool collection.
Grades/Ages: PreK–12.
Cost: Free

ChemCollective (Virtual Chemistry Labs)
Overview: Full online chem lab with prewritten problems; run titrations, thermochemistry, solubility, redox, more.
Grades/Ages: HS (advanced MS possible).
Cost: Free

Concord Consortium – SageModeler & Energy2D
Overview: Free systems-modeling tool (SageModeler) and heat-transfer/CFD simulations (Energy2D) for inquiry projects.
Grades/Ages: MS–HS.
Cost: Free

NASA Learning Resources + NASA eClips
Overview: Grade-banded activities, videos, and educator guides; eClips offers standards-based video series (Our World, Real World, Launchpad).
Grades/Ages: K–12.
Cost: Free

NOAA JetStream (Online Weather School)
Overview: Structured lessons, experiments, and weather explainers with teacher guidance.
Grades/Ages: Upper Elem–HS (younger with support).
Cost: Free

Exploratorium Science Snacks
Overview: Hundreds of teacher-tested, low-cost activities using common materials; searchable by NGSS and grade bands.
Grades/Ages: K–12.
Cost: Free

Science Buddies
Overview: 1,200+ free project ideas with difficulty/grade filters; great for fairs and at-home inquiry.
Grades/Ages: K–12.
Cost: Free

Recess (recess.gg) — live clubs/classes for homeschoolers
Overview: Social clubs, cohorts, and classes designed to help kids make friends and build confidence; orientation calls available.
Grades/Ages: Varies by cohort.
Cost: Weekly/monthly billing per class or series; some free trials. 

Outschool — live small-group and 1:1 classes
Overview: Interest-based clubs, enrichment, and academic classes—excellent for social interaction.
Grades/Ages: ~3–18.
Cost: Typically $10–$30/hour for group classes; 1:1 varies widely.

Meetup — find local homeschool groups & park days
Overview: Search “homeschool” + your city for park days, co-ops, and field trips.
Grades/Ages: All.
Cost: Joining Meetup as a member is free; organizers pay subscription fees to run groups. 

Homeschool-Life (group websites) — co-op infrastructure
Overview: Many co-ops use this platform to manage rosters, calendars, and classes; includes a public map to find groups.
Grades/Ages: All.
Cost: Typically billed to groups at about $9.50–$9.95 per family per year (group pays, members often reimburse).

TheHomeSchoolMom — group directory by state
Overview: Robust, free directory of local homeschool groups, activities, and field trips.
Cost: Free

PhET Interactive Simulations
Overview: Research-based science & math sims with teacher tips and activities.
Grades/Ages: Elem–HS (and beyond).
Cost: Free

ChemCollective (Virtual Chemistry Labs)
Overview: Full online chem lab with prewritten problems; run titrations, thermochemistry, solubility, redox, more.
Grades/Ages: HS (advanced MS possible).
Cost: Free

Concord Consortium – SageModeler & Energy2D
Overview: Free systems-modeling tool (SageModeler) and heat-transfer/CFD simulations (Energy2D) for inquiry projects.
Grades/Ages: MS–HS.
Cost: Free

NASA Learning Resources + NASA eClips
Overview: Grade-banded activities, videos, and educator guides; eClips offers standards-based video series (Our World, Real World, Launchpad).
Grades/Ages: K–12.
Cost: Free

NOAA JetStream (Online Weather School)
Overview: Structured lessons, experiments, and weather explainers with teacher guidance.
Grades/Ages: Upper Elem–HS (younger with support).
Cost: Free

Exploratorium Science Snacks
Overview: Hundreds of teacher-tested, low-cost activities using common materials; searchable by NGSS and grade bands.
Grades/Ages: K–12.
Cost: Free

Science Buddies
Overview: 1,200+ free project ideas with difficulty/grade filters; great for fairs and at-home inquiry.
Grades/Ages: K–12.
Cost: Free

HHMI BioInteractive
Overview: High-quality biology resources (click-and-learns, films, storylines, playlists).
Grades/Ages: MS–HS/AP.
Cost: Free

TeachEngineering
Overview: NGSS-aligned K–12 engineering lessons, activities, and maker challenges with clear materials lists.
Grades/Ages: K–12.
Cost: Free

CK-12 FlexBooks & Interactives
Overview: Free, customizable STEM textbooks and interactives across math & science.
Grades/Ages: K–12.
Cost: Free

Desmos (Calculators & Classroom Activities)
Overview: Free graphing/scientific/geometry/3D calculators and interactive activities.
Grades/Ages: MS–HS (younger with support).
Cost: Free

Code.org
Overview: Full free K–12 CS curriculum (CS Fundamentals, CS Discoveries, AP CS Principles), teacher PD.
Grades/Ages: K–12.
Cost: Free

Scratch & ScratchJr
Overview: Block-based coding; create stories, games, animations (ScratchJr for ages 5–7).
Grades/Ages: Scratch 8–16 (flexible); ScratchJr 5–7.
Cost: Free

Raspberry Pi Foundation – Projects
Overview: 250+ step-by-step coding/making projects (many device-agnostic).
Grades/Ages: Upper Elem–HS+.
Cost: Free