This app is awesome for working on prepositional phrases.
I Hear Ewe-Free
I used this app with my 3 year olds that are non-verbal and have limited mobility. I plopped their little hand on the screen and it made a noise. Lots of laughs (and animal sounds) occurred during the trial of this app.
For this app I turned the sound off and had the children organize 3-word phrases so that they made sense.
This app also provides an opportunity to work on regular and irregular past tense verbs. I used this with several kids that I'm trying to expand their mean length of utterance. This app is so simple, but way more fun then when I just put notecards out on the table and make kids organize them into a sentence!
In the Lite version they have phonemes /b/, "ch", /d/, "dz" and /f/ in the initial position of words. It's a matching game and offers a lot of opportunities for practice. The child can label the item when the card turns over. I mean I get desperate to get as many practice opportunities as I can in a session, and this one does all the work for me. I would definitely consider buying the full version of this app.
Happy "Appy Hour"!