9 sentences

#1. Coordinating conjunction joining independent clauses
Read as: The Getting Dressed song is appropriate for children of all ages still in the stages of learing to dress themselves and is easy to learn for all caregivers.
Change to: The Getting Dressed song is appropriate for children off all ages.  The song is easy for caregivers to learn.
#2 Introductory phrase
  Read as: As a mother of a young son, I know all to well the battles that come with accomplishing daily tasks, especially getting dressed for the day.
No changes.
#3 Use with coordinate adjectives
Read as: As he cooperates with me by assisting with pulling his shirt down over his head, sticking his arms through the sleeves of his shirt, sticking each leg out as I help him put his pants on, and enthusiastically sticking out his feet ready for socks, I sing the Getting Dressed song to him.
Change to: While assisting my son with getting dressed he participates by pulling his shirt down over his head and sticking his arms out through his sleeves and sticking out his legs and feet for pants and socks.
#4 Adjective Clause
Read as: By using the mnemonic device song, Getting Dressed, you will find that the transition from nakedness to ready-for-the-day, can be a fun and educational experience for the child and the teacher.
This is a nonrestrictive clause (with commas)
Change to: The transition from nakedness to ready-for-the-day can be fun using the mnemonic device song Getting Dressed. [restrictive clause (no commas)]
#5 Appositives
Read as: By using the mnemonic device song, Getting Dressed, you will find that the transition from nakedness to ready-for-the-day can be a fun and educational experience for both the child and the teacher.
Change to: By using the mnemonic device song, Getting Dressed, the transition from nakedness to ready-for-the-day can be fun.
#6 Parenthetical expressions
Read as: By creating a mnemonic device through song, my son and I now enjoy getting him dressed, together.
Change to: My son and I enjoy getting him dressed now, using the mnemonic device song I created.
#7 Absolute phrase
Read as: Each verse is repeated until said instruction is complete, followed by an enthusiastic, "that's how we get dressed. Yay!", and he claps his hands.
Change to: He claps his hands enthusiastically as I sing, "that's how we get dressed. Yay!".
#8 Words expressing contrast
Read as: By using the mnemonic device song, Getting Dressed, you will find that the transition from nakedness to ready-for-the-day, can be a fun and educational experience for both the child and the teacher.
Change from child and teacher to student and teacher.  Also, nakedness to ready-for-the-day can be changed to naked to dressed.
#9 To set off a quotation or a direct address
Read as: The goal is to, as Maria Montessori put it, "Help me do it myself."
No change