- Counting: The child had to count the number of cards they had and the number of cards their opponent had.
- Number recognition: The child had to recognize the numbers on the cards in order to play the game.
- Matching: The child had to match the hidden pictures on the cards in order to win the game.
- Strategy: The child had to think strategically about which cards to play in order to find the hidden pictures and win the game.
For continued development, the child could try creating their own card game with hidden pictures and numbers. They could also practice counting and number recognition by playing other games that involve numbers, such as dice games or board games with numbered spaces.