Browser learning games · Grades 1–8 · Parents in control
A world they can change, and keep.
Lesson Worlds is a browser learning world. Math, science, English, social studies and geography live inside the planets. Grades 1–8. Parents stay in control.
US and Canadian curriculum · No app download · No child email · Free to start
Family membership · US$4.99/moNotice. Try. Transform. Keep.
Each planet is a small place with a real problem. Completing it changes the world and opens the next one.
01
Notice
See a frozen greenhouse, a dry ridge, a silent mill: a problem in the world, not a worksheet.
02
Try
Carry water, melt ice, place a word, map the rain. The rule has to work in your hands.
03
Transform
The channel flows. The garden wakes. The harbor opens because of what they did.
04
Keep
Paint it in their ink and bring something home. The place stays theirs.
See the world they play in
Walk, figure it out, paint it theirs.
Why families start
Play feel. Parent control. Minimal child data.
Practice through play
Count and balance at Harbor Record, explore water and heat at Material Bench, and build words at Word Forge.
Parents choose access
Parents create child profiles, approve friends and decide when chat is available. Chat starts off.
Clear learning expectations
Recorded practice shows activity. Completing a game alone is not evidence of mastery.
What we stand behind
Grades 1–8. US$4.99 a month for up to three children. Free to start in the browser.
Child accounts
No child email. Parents choose username, password, and grade. Learning activity and progress are also saved; see our privacy policy.
Named planets, not a pile of games.
Home, then science, English, geography, and math, each with its own silhouette and a rule you can replay.
Your courtyard
Home
Paint the beacon. The ink travels with you.
Science
Material Bench
Wake the greenhouse. Water, heat, and ice change the place.
English
Word Forge
Build a word that makes something happen.
Geography
Rain Ridge
Read the land, then choose where a town can live.
Math
Harbor Record
Balance, count, and keep the harbor working.
Parents stay in control
Let them play. Stay in the loop.
No child email. Parents choose username, password, and grade. Learning activity and progress are also saved; see our privacy policy. Chat starts off. You approve friends and see what they practised.
How parents set it up
One family membership · Up to three children
Play. Keep. One household.
- A personal world of planets they can walk, change, and paint
- School practice in math, science, English, social studies and geography, Grades 1–8
- Saved progress for up to three children
- A parent dashboard, parent-approved friends, and child profiles with no child email
- Books, labs, and free Featured educators field trips if they want them
Free play, reading and Featured educators trips remain available without membership.
Monthly
$4.99
USD · Billed monthly · Up to three children
Start membershipManage or cancel in your parent account.
A few things families ask.
What can we try for free?
Standalone games, science labs, books, and research worlds are free to explore without signing in. Featured educators field trips remain free. The core personal world offers a guest run; Family membership saves their world, opens school-practice paths, and gives you the parent dashboard.
Is this a replacement for school?
No. Lesson Worlds supplements school. Children practise by changing small worlds, then they can follow curiosity into books, labs, and field trips if they want.
Which grades and subjects are included?
The world covers Grades 1–8 in math, science, English, social studies and geography. Choose the country and grade for your child. Practice completion is not the same as demonstrated mastery.
How do my children sign in?
A parent signs in with an email code and creates up to three child profiles. Each child uses the username, password, and grade their parent chooses. No child email or app download is needed.
What else is in the universe?
Explore includes reading worlds, interactive science labs, educational games, and free educator-led virtual field trips. The personal world covers Grades 1–8; individual games and resources have their own subject guidance.
What does membership cost?
Family membership is US$4.99 a month for up to three children. Prices are in US dollars. The checkout shows the total and any applicable tax before payment.
Can I cancel?
Yes. Manage or cancel your subscription through billing in your parent account. Cancelling stops the next renewal; access continues through the paid period.
Play the world.
No download. No child email. Family membership is US$4.99 a month for up to three children.