Chopping and dicing are two methods of cutting materials into pieces. Most times, people find it difficult to know what to do when they are asked to chop or dice an ingredient. When you are chopping ingredients, the pieces may look similar in size, depending on whether you are to finely or roughly chop the ingredients.
However, in both cases, the pieces will not have a uniform shape. On the other hand, when you are dicing an ingredient, it will not only give you pieces that are uniform in size, it will also produce pieces that are of similar shape. The regular shape you get when you dice an ingredient is that of a cube.
You can have small, medium, and large sizes when you chop some recipes. For some recipes, chopping is preferred because it can easily create larger size pieces compared to dicing. However, dicing will create pieces that are of similar size and shape.