Long words should be deciphered through familiar structural parts
Connected to the main concept «uchitsya-legko.rf — learning to read as decoding the written code».
As learning progresses, the unit of recognition should become more than just individual letters. The child can gradually recognize increasingly larger stable blocks:
letter → combination → syllable → part of word → familiar root or component → word.
This is especially important for long and compound words. If familiar parts are discovered within a new spelling, they serve as supports for both pronunciation and meaning restoration.
At an early stage, it is not necessary to introduce formal grammatical terms. The operation itself is more important: to see familiar pieces in a large, unknown word and use them as a partially deciphered code.
This principle is an extension of «Learning to read should go from known supports to the unknown code»: a familiar support can be not only a whole word or letter, but also a repeating structural component.
It is also connected to «Reading is word recognition and meaning restoration, not sequential sounding out of letters»: mature reading should use the largest reliably recognizable units available, rather than returning to minimal elements every time.