Croak It app is an app that you can use to record your students in 30 second clips.  You have the option to share this clip via the web as it generates a URL for you.  It's a great way to share what your students are doing via your class blogg or emails, etc.  Below is a Croak It clip of my students counting money over $1.00.  They start by creating a dollar, saying a little poem "A dollar, a dollar, I just made a dollar, woooooo!"  Once they make the dollar, they place it down while saying, "$1.00" and then continue counting the remaining change.  The Croak It app can be used for oral math journaling, recording students doing their math facts, recroding math songs and rhymes, etc.  Give it a try!

https://croak.it/hear/mcid5166d74d49b5a