My DS often gets all his weekly spellings right but, if he includes them in a piece of written work, he 'forgets' or actually seems not to know how to spell the word(s). Is this common? How can I get him to really LEARN the spellings? Is it just learning by rote? Or are there other methods? He can often successfully guess at words but for the 'sounds' such as 'ear', 'eer' or 'ier', you have to KNOW, not guess.
Any help/advice gratefully received!