Help pls what would be the objective for this math lesson plan

Question

I am going to teach three different types of shapes Triangle Circle, and square to Kindergarten students. I will also teach them a new song about shapes the Hokey pokey example put your circle in, put your circle out and you shake it all about etc….

Answer 1

I agree with J.S.  

you could also state that the student will correctly identify the shapes of triangle, circle, and square when verbally prompted.   The "verbally prompted"  covers the use of the song or even your request.  Two words, so many possibilities...lol.

Best of luck, hope this helped.  

Answer 2

Objectives:

Students will be able to identify the shapes triangle, circle and square.

Students will learn the words and actions to a "Hokey Pokey" song about the three shapes.

(you can skip the second one if you just consider it part of your method of doing the first, rather than an objective in itself)