Online math practice, at your pace.
A K–8 math app. Fresh questions. Helpful hints.
Every question is sharpened for one child.
Fresh practice for the skill your child is exploring, with help when they need it and room to try again.
Written for one child
Each exercise focuses on the skill your child is on right now.
Help that steps back
A picture appears while an idea is new and fades as it isn't needed. Neither hint gives the answer away.
Progress you can trust
Secure means unaided correct answers across separate days. A streak is not evidence.
Whetta sits beside them, not above them.
It says hello, nudges when asked, and smiles when an idea lands. It never reacts to speed — nothing is timed.
A ribbon is 3/4 of a metre long. You cut it into pieces that are 1/8 of a metre each. How many pieces do you get?
How many eighths make up one quarter?
The eraser is part of the pencil.
Getting it wrong is how the next question gets written. Nothing is timed and nothing is ranked — a wrong answer only tells Whetta what to show next.
See how sharp each skill really is.
Every skill moves through four stages. Secure means unaided correct answers across separate days — a streak is not evidence.
Illustrative learner profile
What we left out is part of the design.
Whetta has one job: your child's next step, in whatever they're learning. Nothing is timed, nothing is ranked, there's no advertising, and your family's data is never sold.
K–8 Mathematics, by invitation
Invitations go out to a small number of families at a time.
By requesting an invitation, you agree to our waiting-list privacy policy .