Parent tip: When writing with your students break the words into syllables and use the sonidos iniciales chart from estrellita. If they are not wanting to write don't force it. Encourage them, and help them but don't make it a chore.
ex. Oruga o-ru-ga
What is the first sound? Que es el primer sonido? /o/
/ru/ la /r/ con la /u/ suena (sounds like)?
/ga/ la /g/ con la /a/ suena(sounds like)?