Both my son and I love routines. We both adapt a new routine whenever our current one is broken and we feel the urge for it. A part of our routine since he started school is that he has some 'concentrated work' time pretty much everyday. One part of our routine these days is that he practices the 'sight/Oxford words' list that was given to us by his school.
At our school, it is the school's aim that Prep students learn the first 100 words out of a total of 307 words by the end of their first year of schooling. If they go beyond it, it is a bonus and they try to work at their level with those students too. They give a list of 10 words each week once the previous set of 10 words is tested and the student has achieved it. The words are chosen not necessarily on the basis of simplicity but rather how often they are used in daily life and in books here in Australia.
With the sight words, in case you are not familiar with it, it is different to 'reading' or 'sounding out' a word. Sight words are the words that students are expected to know as soon as they see. They are tested on the basis of whether the children can read/tell the word within 4 seconds of seeing the word, without hesitating, without making an effort to work out the word. Each set of 10 words is colour coded and parents and children are encouraged to practice the words with their children on a regular basis, using various strategies and games such as flash cards, go fish, matching games, snap, etc.
If you would like a head start or are simply interested in some extra work for your child in English, here is the full list of 307 sight/Oxford words that my son's school uses.
Enjoy your time with your little one(s).