Learn the “גמרא דף יב. “אמר רב ששת (middle of the Amud) until “אמר רב יוסף” (fifth line of the medium sized lines)
Clarify the different opinions of what is required to permit carrying in a Chatzer
Learn “ריטב”א “מרוח אחת who asks multiple questions on Rashi’s explanation of the Rabanan. The Ritva argues on Rashi and gives a different explanation in what is the opinion of the Rabanan.