These thematic pictures of מָתֶמָטִיקָה are analogous to a visual dictionary. The theme "מָתֶמָטִיקָה" is split 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 that the information is absorbed better. This is especially true if you are using flashcards to learn hebrew language that is not your native language.
To expand your hebrew language vocabulary on the "מָתֶמָטִיקָה" topic, flashcards games are the best way: