Hi,
I got the english and math cards from GDbaby singapore before my girl was borned. She was not interested in it at all. Esp for the Math dot cards, she looked away whenever saw the cards. I therefore stop showing her cards and sticked the cards all around the house to relate words to the objects. The cards are good for babies as they are big and clear. She is more into LR then the cards.
Now that my girl is 2.5 yrs, i am reintroducing her the dot cards and she is enjoying it. Hope this will go on.