Fourth Amendment reasonableness approaches and precedent

Respond in a short answer format but cite your sources. The fourth amendment focuses on the reasonableness of actions regarding searches and seizures. Assessing reasonableness and what is unreasonable can be arbitrary. The textbook discusses two approaches that are used to determine reasonableness. What are these two approaches and explain them? Identify at least one case that has set a precedent regarding what is reasonable or unreasonable, indicate if you agree or disagree and why.