Should You Reward Kids for Doing Math? What Works and What Backfires

Ask ten parents whether kids should be rewarded for practising math and you'll get a split room. One side says rewards are bribery that kills a love of learning. The other says that's how adults work too: nobody does their job for free.

Both sides are partly right. How you reward matters more than whether you do.

What the research actually says

The worry comes from a famous 1973 study by Lepper, Greene and Nisbett. Preschoolers who already loved drawing were promised a certificate for drawing. Afterwards they chose to draw less in free time than children who weren't rewarded, or who got the same certificate as a surprise. Psychologists call this the overjustification effect: when a reward becomes the reason for doing something, the activity can lose its own appeal.

Notice the details, though:

The children already enjoyed the activity.
The reward was expected and conditional ("do this, get that").
Unexpected rewards didn't cause the drop.

For a task a child doesn't enjoy yet, like times tables drills for many kids, rewards can get them through the early effort until competence makes the task satisfying by itself. Feeling good at something is one of the strongest motivators there is.

Rewards that tend to work

Rewards for effort and consistency, not just perfect scores. "You practised five days this week" builds a habit; "you got 100%" can make a child avoid hard questions.
Surprise and variety. Because unexpected rewards don't trigger the overjustification effect, an element of chance keeps things fun without turning practice into a transaction.
Experiences over things. Choosing dinner, a trip to the park, a later bedtime on Friday or a board game with a parent are cheap, and they give your child time with you.
Small and frequent beats big and distant. A 7-year-old can't stay motivated for a bike promised in three months.
Fade them out. As the skill gets easier, rewards can become rarer and bigger. Praise and pride take over.

Rewards that tend to backfire

Paying per correct answer. It invites guessing, cheating and arguments over the rate.
Screen time as the main prize. It teaches that math is the price of the "real" fun, and it's hard to take back once given.
Taking rewards away as punishment. Losing a reward already earned feels unfair and turns practice into a power struggle.
Rewarding activities your child already loves. If they happily play number games, leave that alone.
Comparing siblings. "Your sister got the prize" breeds resentment. Each child should compete against their own past.

A simple system you can start this week

Agree the habit, not the outcome: "10 minutes of math, 5 days a week."
Write a reward list together. Mix small ones (sticker, choose the song in the car) with a few special ones (cinema trip). Kids who help make the list care more about it.
Add a little luck. After each session, roll a die: a 5 or 6 earns a small reward from the list. Keep the special ones rare.
Hand rewards out quickly. A prize promised "sometime" loses most of its power.
Review monthly. Retire rewards that have gone stale, and swap in new ones.

How Lucky Math handles rewards

We built Lucky Math around these ideas. Kids do a short quiz, and a good score unlocks a lucky chest. Better scores improve the odds, but the chest is never a sure thing, so it stays exciting. Every prize inside comes from a list you create, in five rarities from Common to Legendary, so it's always a real-world reward you're happy to give. You can limit special prizes, pause any reward, and tick prizes off once you've handed them over.

FAQ

Are rewards for homework a bribe?

A bribe is offered in the moment to stop bad behaviour. A reward is agreed in advance for effort. Planned rewards for a new habit are fine, especially if you fade them as the skill grows.

What are good non-screen rewards for kids?

Choosing the family dinner, a park or library trip, baking together, staying up 15 minutes later, a sticker or trading card, picking the weekend film, or one-on-one time with a parent.

How often should I give a reward?

Early on, small rewards several times a week work well. Once practice is routine, move to fewer, bigger rewards, and keep some element of surprise.