Okay kiddo, a rebate card is like a special gift card that a store or company gives you as a reward for buying something. Let's say you want to buy a toy truck that costs $10. But if you use a rebate card, the store might give you back $2, which means you only had to pay $8 instead of $10.
Think of it like this, your piggy bank has $10. You buy a toy truck for $10, but the store gives you $2 back in a special card. Now you can use that card to buy more things, just like you would use your piggy bank money to buy things.
The cool thing about a rebate card is that you don't get the money right away. Instead, it's like a special savings account that you can only use at that store or company. You can save up the rebate money and then use it when you have enough to buy something else you really want.
So, it's like you get a prize for shopping! But remember, you still need to buy something in order to get the rebate card. And you should always read the fine print to make sure you understand all the rules.