dis - card
There are many reasons to learn how to divide discard into syllables. Separating a word like discard into syllables is mainly to make it easier to read and pronounce. The syllable is the smallest sound unit in a word, and the separation of the discard into syllables allows speakers to better segment and emphasize each sound unit.
Knowing how to separate discard into syllables can be especially useful for those learning to read and write, because it helps them understand and pronounce discard more accurately. Furthermore, separating discard into syllables can also be useful in teaching grammar and spelling, as it allows students to more easily understand and apply the rules of accentuation and syllable division.
In the case of the word discard, we find that when separating into syllables the resulting number of syllables is 2. With this in mind, it's much easier to learn how to pronounce discard, as we can focus on perfecting the syllabic pronunciation before trying to pronounce discard in full or within a sentence. Likewise, this breakdown of discard into syllables makes it easier for us to remember how to write it.