Mia Talerico has the timeline feeling nostalgic after she returned to social media with her first day of school photo tradition.RELATED: Y'all Here For It? Joe Jonas Seemingly Reveals 'Camp Rock 3' Might Be In The Works (VIDEO)Mia Talerico Shares First Day Of 11th Grade PhotoOn Thursday, 'Good Luck Charlie' star Mia Talerico posed on Instagram as she shared a photo heading into her first day of 11th grade. Her caption read: "First day of junior year, wish me good luck #backtoschool #byesummer #books."As she stands there, it's safe to say our Charlotte Duncan is all grown up.