Spelling and literacy are the cornerstone of education. If a learner cannot successfully spell words then they are less likely to succeed at formal learning.
Skills and strategies for learning ‘how to spell’ are a very important part of the spelling process. Even if a learner is able to ‘spell a word’; if they do not understand the process they cannot use this knowledge to spell unfamiliar words. As in maths, it is not just the correct answer that is important, the working memory and understanding of how to achieve the correct answer are vital to the cognitive process (deep understanding) for future learning.