NOW ON IPHONE & IPAD · GRADES 6–8

What if math
were a mystery?

A strange signal. A visual clue.
That little moment when it clicks.

Meet Juno and R0-B1 in Dead Air, the free opening chapter of Signal Lost. Read a little, try an idea, and follow your curiosity.

The first chapter is free. No account or card needed.

Watch a little of the adventure 25 sec
Juno and R0-B1 trace a golden signal through the school media lab.
YOUR FIRST CASEDead AirOne free chapter. Twelve clues.
A story worth following Ideas you can explore Help without the pressure
A PEEK INSIDE

The math has
a part to play.

A receiver log. A missing rate. A clue that invites you to try something.

  1. 01

    Step into the story.

    Meet the characters and find out what they need to discover.

  2. 02

    Make an idea visible.

    Explore the interactive picture, choose an answer, and check your thinking when you’re ready.

  3. 03

    Take a smaller step.

    Hints and foundation activities are there when you want them. Then return to your clue.

Actual browser gameplay, with sequences shortened. The video has on-screen captions and no sound.

In this example, 72 MB copied in 3 minutes becomes 24 MB per minute. Explore the model, ask for a hint, then choose “Check my thinking.”
READY FOR YOUR FIRST CLUE?

A chapter on us.

Open Signal Lost → Unknown Sender → Dead Air.
Read the story, or choose “Skip to clues” to start exploring.

Start the free web chapter
WHEN YOU’RE READY FOR MORE

Two story worlds.
One family membership.

Follow impossible broadcasts in Signal Lost, or uncover a changing mural in The Glasswing Society. Family Premium opens the available Grades 6–8 stories, visual models and optional helpers.

Chapters open in sequence as discoveries are made. Already have Premium? Sign in with the same parent account; there’s no need to purchase again for another device.

FAMILY PREMIUM

$79.99 / year

Billed annually. Or choose $9.99/month.

See both plans

USD. Plans renew automatically until canceled. Applicable taxes and the full amount due appear before payment. Manage or cancel through your billing provider.

GOOD QUESTIONS

A little more
for grown-ups.

What can we try for free?

The complete Dead Air chapter from Signal Lost, including 12 clues and optional help. No account, card or subscription is needed for the sample.

Does it replace our math curriculum?

Fablematics is supplemental Common Core math practice for Grades 6–8, with optional foundation activities. It is not a full curriculum or a live tutoring service. The catalog has not yet had an independent educator review.

Can we leave and come back?

Each correctly checked clue is saved on the same device or browser. Cross-device learner sync needs parent sign-in and separate parent permission. Read about family privacy.

Are there ads or public chats?

No ads or public chat. A parent manages the account and any optional subscription. Reading preferences and unfinished answers stay on the device.

HELP SHAPE THE NEXT CHAPTER

Try it. Tell us
how it felt.

We’d love to hear from parents of Grades 6–8 learners. What was clear? Where did you want a smaller step? Join an optional parent feedback conversation after trying the free chapter.

Share parent feedback

Your email app opens a draft for you to review and send. Please leave out children’s names, schools and answers. Reply “stop” to end optional contact. How we handle these requests.