Insights for your child.
Your child plays the games. This website visualizes their fluency on every Common Core question type they have tried, and shows which facts to practice tonight.
Link your child.
Install a game
Install the free app, Extra Credit: Math Games, on your child's phone or tablet. Open the app and play at least one game.
Sign in here
On your own phone or computer, sign in at extracreditmath.org with Google, Apple or an emailed link.
Enter the save code
The save code is the app's one code for your child. It links the game to this website and brings the game back on a new phone. Open the Parents and Teachers page in the app, behind the gear button, and find the 8-character save code. Enter it on the Add a student page. Data and analytics appear once the app has synced.
Insights for each child.
The fact map
Every fact your child has tried, color-coded by fluency.Learned this week
Facts that went from shaky to known in the last seven days, and facts that slipped.Facts for tonight
The facts holding your child back, each with a way to think about it.
Pricing.
The games
$0
The games are free, with no ads and no in-game purchases. They work with no internet.
Your child's math settings
$0
Set the grade, question types, answer time, number line, read-aloud and typing for each child, and bring a saved game to a new phone. Free, with or without the membership.
Learning insights
Family membership
$9.99 lifetime
$9.99 lifetime membership. Try free for 30 days. One payment unlocks the insights and analytics for every child in your family. Settings are free either way. It is not a subscription.
Teachers
$0
Free for teachers. Verify with a school email, or ask us.
Data and privacy.
- The games never ask for your child's full name, an email or a photo. In Sumhaven, a child can name a creature.
- The app backs up its save under a random id with no name or email.
- Answers are shared with this website only after you link your child and agree.
- You can delete your child's record at any time.