1) Critical thinking involves asking questions to gain knowledge on a subject from various sources like the internet, books, and experts. There are three main types of questions: factual, interpretive, and opinion. 2) Research is conducted using three main forms: exploratory, constructive, and empirical to gain new knowledge and share findings. Analysis methods like cost/benefit, priorities, program, and brainstorming are used to identify key argument points. 3) Issue discovery is a crucial part of critical thinking that involves categorizing contradictions and uncertainties to find the most important issues to address, which then form the basis for contentions that support a position on a claim.