Final answer:
Cell phones can be used as educational tools by accessing educational apps, online resources, conducting research, and accessing online textbooks or educational websites.
Step-by-step explanation:
An argumentative essay about the benefits of allowing students to use cell phones in school can include evidence that cell phones can be used as educational tools. One example of evidence is the ability to access educational apps and online resources through a cell phone. For instance, students can download educational apps that provide language learning activities, math practice problems, and science simulations. Additionally, cell phones can be used to conduct research and access online textbooks or educational websites.