hello
first of all u have to ask help from Allah then dont be worry the lesson is easy and your students are going to enjoy it inshallah
i think its better to introduce it with a stroy so the students are going to be attracted
e.g Sarah is a good girl she loves her family and friends she has
so many friends but she prefers Manal because she is honest cheerful and helpful
its better to use pictures while u r intoducing the story
dont forget to ask them to repeat and to spell the words
remind them with prophet mohammad and his honesty