Final answer:
The best approach for a first-grade student to master long-vowel patterns is through engaging methods such as singing nursery rhymes, which helps in recognizing and pronouncing long vowels in a fun and relaxed context. The correct option is D.
Step-by-step explanation:
The question asks for the best strategy to help a first-grade student master reading words with long-vowel patterns such as "train," "fight," and "mow." Among the provided options, the strategy of segmenting individual phonemes to decode new words (Option C) could be effective.
However, considering the complexity of the sounds in these words, focusing on phonemic awareness through singing (Option D) might provide a more engaging and memorable learning experience.
Nursery rhymes and songs often contain repetitive patterns and rhyme schemes that highlight similar sounds, making this approach conducive to mastering words with long vowels without the pressure of decoding on the spot.
When children hear these patterns in a fun and relaxed context, they often find it easier to recognize and pronounce these vowels when encountered in written form. The correct option is D.