Hello there,
Nice to know about your interest of educational game.
Educational games is slightly different on how to develop it compared to other usual games. Why? Because educational game have a goal to deliver the study subject to the player. And each level of education grade have different approach and way on how we deliver the course to the student. For example, kindergarten are likely to have a game that have very very simple interaction with a colorful graphic, meanwhile elementary grade are likely to have more challenge on playing the games to reach the goal.
Many developer thinks that every player education grade have the same approach. And they just generalized it and for them the game with "education" content are already called educational game. No, that's not the purpose of educational game. It will be a meaningless education game while the game cannot deliver the goal of teach the study subject. Educational game is a media, that help student or player to learn their study subject with different approach. It is a media that become a role of teacher.
Can you tell me more about how the math game is? Remember the key is how we apply the approach method on the game to successfully deliver the study subject... Love to know more if you would like to chat about it.
Best Regards,
Haidar Abhirama