We learn about the second melacha, plowing, and its subcategories and rabbinic prohibitions.

We learn about the first melacha, planting, and its subcategories and rabbinic prohibitions.

We learn about the first melacha, planting, and its subcategories and rabbinic prohibitions.

We discuss the second and third scenarios where the sages created their decrees - to prevent a Torah transgression, and to maintain the uniqueness of Shabbos.

The Torah commands the sages to create safeguards to protect the Jewish people from transgressing the Torah's prohibitions. We begin to explore the conditions under which they created their decrees.

We discuss the conditions of a complete act, an act done alone, the measure of the prohibition, and the concept of less than the measure.

We examine the fourth and fifth conditions of m'leches machsheves - conscious creative acts. The fourth is that it must be constructive and the fifth is that it must be permanent to be considered a Torah prohibition. Otherwise, it is only a rabbinic prohibition. We also briefly explore the concept of grama - indirect acts.

We learn about the two types of 'pesik reisha.' This is where one performs a permitted act and a prohibited result is sure to occur as well. In one case, one is pleased with the prohibited result; in the other, one is not per se pleased. We also learn about an act that is similar to that which was done in the sanctuary, but has a different intent accompanying it.

We study the scenarios where one performs a permitted act with a forbidden result. There are some circumstances where such an act would be permitted to be done, even though the forbidden result is a strong possibility.

We learn about the conditions that qualify a melacha to be considered a Torah prohibition, and where the sages instituted safeguards to protect us from transgressing Shabbos.