Educational kids computer games.?

there is a game that i loved to play when i was little. you had to buy it but i completely forget the name. i think it was for second grade and they were in the jungle. you had to solve math problems in a volcano and word problems to rescue the cheetahs. i know that it had 4 kids as the characters. i also know that you had to match things on a spider web. if someone can please tell me what the title of the fame is if you know it. please please help! my cousins birthday is coming up and i really want to get her that game!!!!