Han'gul, being an alphabetic syllabary, can be taught as an alphabet or as a syllabary. Let us survey how it has been taught throughout its 500-year history.
In the 16th century, some years after its creation, Han'gul was seldom taught directly but was indirectly acquired while learning Hancha, as it was used to give the sounds and meanings of Hancha. In the 19th century, women, children, and laborers picked up Han'gul, or acquired it without much teaching, from a Han'gul syllable chart (table 13-4) that might be hung on a wall. ...
Right after the end of World War II and of the Japanese rule, when Han'gul began to be taught once more in schools, it was taught more as an alphabet than as a syllabary, no doubt emulating the teaching of the Roman alphabet in the West: Children learned individual alphabet letters and their phonemes, and then learned to package them into syllable blocks. The alphabetic method does not appeal to young children, as it deals with small meaningless sound units, phonemes. It also requires some ability to analyze and synthesize sounds, which young children find difficult. In 1948 the teaching unit jumped from phonemeletters to sentences, bypassing syllables, syllable blocks, and words. Both methods produced a few primary school graduates who failed to master Han'gul (Ch'oe 1986). In the 1960s the noted educator Yi Ung-baek (1988) advocated the use of syllables and syllable blocks as teaching units. He proposed displaying the Han'gul syllable chart prominently at the beginning of a textbook, in front of a classroom, and over a desk at home.
Lately the syllable block has been the primary teaching unit, which has many advantages over an alphabetic letter. A Korean syllable is far more likely to be meaningful than is a phoneme, in that a syllable often by itself represents a morpheme or a word. ...
... studies, besides showing that syllables are easier to manipulate than phonemes, show that people can proficiently manipulate phonemes usually after, but not before, they become literate in an alphabet. (Some educators in the West believe that phoneme awareness is a prerequisite to learning to read in an alphabet.) Further, they tend not to become aware of phonemes, if they become literate in logographs or syllabaries. Finally, because a syllable is easier to isolate as a unit than a phoneme, in the development of writing systems a syllabary begat an alphabet, not the other way around (chap. 1).
The beauty and ingenuity of Han'gul is that people do not have to learn 2,000 unrelated graphs for 2,000 syllables; they merely have to learn the 24 letters and the systematic way they package into syllable blocks. They learn easily through deduction, instruction, and practice all the syllable blocks in the basic chart. Once people learn these systematically constructed syllable blocks, they should have little trouble pronouncing any syllable string, whether familiar, unfamiliar, or nonsense. There is no need to consult a dictionary for either pronouncing or spelling.