Open the pepper and run your knife along the inside to remove the core and seeds.
If you are looking for how to break down a bell pepper into pieces for cooking, there are a few standard methods depending on the shape you need: The "Plank" Method (Best for strips or dicing): Slice off the top and bottom of the pepper. Stand it upright and make one vertical slice down the side.
If you are referring to black pepper, a "piece" is called a peppercorn , which is the dried fruit of the plant.
The very top "hat" part of a chili pepper that connects to the stem is called the calyx . Popular "Pepper" Dishes
