If the data you are collecting is related to education, FERPA must be observed. FERPA training (available through CITI) is required prior to collecting data.
If you are conducting research within a school setting, it will depend on the school. The researcher needs site consent.
Almost all research with minors (FERPA-related or not) will trigger a full board review. We will want to make sure the students' names and all related information are kept confidential and private. After the data is collected, personal information should be separated from collected data (name for example). If race and age are important to the research design, you need to explain what demographic information you need to retain in order to carry out your analysis.
Consent is always required for research, and in the case of minors, this includes their parents. Parents must give consent, and students must also assent in order to participate. In other words, two consents must occur prior to participation.