Abstract: A system and method are disclosed for training number sense of a person by providing content which challenges the approximate number system in the context of an interactive video game. The training of non-verbal number sense is fostered through brain plasticity and learning associated with dynamic interactive video game environments. The present invention may provide tasks to a player through an interactive video game. Actions are received from the player, and a number sense acuity value is measured based on those actions. Feedback is provided to the player based on the number sense acuity value.