This is an example lesson plan that can be used to teach elementary school or middle school level students about African American musical heritage during the Civil Rights Movement of the 1950s and 1960s, specifically focusing on how popular culture has helped shape public opinion towards important issues such as civil rights.

The plan includes several components:

1) A short biography of Stevie Wonder that highlights his role in advocating for Martin Luther King Jr. Day becoming a national holiday.

2) An overview of the history behind 'Happy Birthday' and its evolution into an anthem for social change during this time period, including information about how it was first performed by Mahalia Jackson at one such rally before eventually being covered by other artists like Aretha Franklin & others who helped popularize their own versions!

3) Information on how protest songs can unite people towards a common cause through examples from history books or contemporary events; For instance, you could discuss what role did Bob Dylan play when he released 'Blowin' In The Wind' which became an anthem for the anti-war movement during Vietnam War era?

4) Finally, there are suggestions provided on how teachers can use these materials within their classrooms - perhaps by asking students to create their own songs about social issues they feel strongly about today!

Overall, this lesson plan aims to educate young minds not just about African American musical heritage but also its power as a tool for social change.

Happy birthday song stevie wonder short