These thematic pictures of ผลไม้ are analogous to a visual dictionary. The theme "ผลไม้" splits into several parts. For children, especially toddlers from 1 to 5 years old, it is better to divide the sets of cards over several days, or even weeks, so the information is absorbed better. Especially it is true if you are using flashcards to learn the thai language, which is not your native language.
To expand your thai language vocabulary on the "ผลไม้" topic, flashcards games are the best way: