Start by talking about your routine, talk about the patients' diseases, problems, & goals. When you assess the patient, show them how to do it. Review frequency of routine stuff, vitals, charting, etc. Show them how look up meds, policies, find supplies etc. Review patho and meds by asking them "tell me what you know about this", have them tell you normal values, ask what the abnormal value means...the idea is to get them to talk to you so you can educate based on need. Have them look at policy on new procedures then have them explain it to you. Let them know its ok to say, "I don't know, but I'll look it up." (Make sure they do look it up).
Switch up patient type every few shifts so they can experience more...look for learning opportunities with other nurses' patients. Have them talk to the patient, families, ancillary staff, and talk to the DOCTOR too! Have them practice and give change of shift report and transferring a patient report. Try to do a quick critique of their performance at the end of the shift. Make sure you point out what was good & bad and make sure you tell them how to improve. Since they are students, make sure you stay with them for pretty much all patient related care to ensure patient safety. Once you judge that they are safe, you can let them do stuff more independently such as assessments, vitals, charting, etc. Hope this helps. Good Luck!