To ensure compliance with ethical guidelines, What action should the fifth-grade teacher take prior to posting the article on the Internet?
1) Providing links to the manufacturers of the manipulatives that have trademarked names
2) Providing a disclaimer stating that the school district does not endorse the pedagogical methods used
3) Explicitly identifying the manipulatives being used in a caption below each photograph
4) Obtaining permission from parents/guardians before posting pictures of the students