Depending on the transliteration method, I would transliterate "Хорошо" as "harasho". This is an easy word to remember because it sounds similar to "horror show".

And "Плохо" is pronounced like "ploha". It is similar to the Hawaiian greeting "Aloha" with the first "A" replaced with a "P".

Bolded letters designate where to put the stress.

Anyway, good luck with your tutor.