What is the difference between classical and operant conditioning?

Classical conditioning and classical conditioning are both forms of learning. Classical conditioning is the pairing of a stimulus with an involuntary response, whereas operant conditioning is the association of a voluntary behavior with a consequence. It doesn't matter if this doesn't completely make sense yet, because I'll explain it now in terms of some case studies.You've probably heard of the Pavlov's dogs experiment, where Ivan Pavlov took a group of dogs and found that when he presented dog food to them they started to salivate. He would then ring a bell before he presented the food and found that after a while the dogs started to salivate purely at the sound of the bell. The stimulus originally was the food, and the involuntary response was the salivation of the dogs. The stimulus then became the ringing of the bell, and the salivation remained the involuntary response.Skinner's box is probably the most well-known for operant conditioning. It was essentially a box where a rat would be trapped inside and be forced to pull a lever to get a treat. As the rat discovered that the lever would provide food, it started to press it more frequently. The rat was voluntarily pulling the lever and it learned to associate that the consequence was that food would be provided.