The process of protein synthesis, translation, is difficult for many students to understand. There are two reasons for this: (1) It is difficult to visualize the process, since the components involved in the process are not observable, and (2) There are many details, often dependent on each other and difficult to grasp independently, that are necessary to know in order to understand the process. It is well-known that students learn better when they are active participants in their learning. With this in mind, the author developed an interactive group demonstration to help students visualize the process of translation. This activity, described in this article, can be used in small and large classes and takes 10 to 15 minutes to complete. During the demonstration, student volunteers "become" tRNAs, and they are responsible for translating an mRNA sequence. It has been found that students are able to visualize the process much better after doing the activity compared to only hearing about the process in a lecture. Students gain a better understanding of several subtle but important details, such as reading the codon chart correctly, appreciating the presence of the untranslated regions, and predicting the result of mutation in the genetic code. This demonstration is inexpensive, simple to perform, and is a quick way to help students learn a difficult concept. (Contains 2 figures.)