How I Use It
I used this in my classroom as an independent practice for greater than. It was great for the kids to practice identifying the number which is greater and when the numbers were equal in value. I can see this as a great tool for extra practice, or to extend the learning for your students needing enrichment before the skill is taught.
I think this is a good game that can be used multiple times. It counts correct answers and when a wrong answer is given it allows for more practice before it moves the student onto the next level. Each level progressively gets harder by using bigger numbers. At the end of each level is a "feeding frenzy" where the student needs to tap the numbers from greatest to least. The alligator eats the tapped fish. It is an easy way to quickly assess students by glancing at their device. A quick glance will allow you to see how many levels they have progressed through, or where they are having trouble.
It is a very engaging game with a high level of interest. It also leads to a direct correlation between the greater than sign and the alligator mouth.
I only see one potential problem with the app. If the student does not double tap the home button on the iPad and then slide the app up to shut it off completely, the next time the app is opened, it will pick up right where the last student left off. This can be problematic if the students are not accustomed to doing this.