CONCEPT: Guess the mystery number by eliminating those more or less than it.
DELIVERY: Another month, another Maths game app. There's just so many to choose from now. I grabbed this one when it went free ( thanks again Apps Gone Free) as it was from acclaimed publisher McGraw Hill, thinking it must be a winner. Boy was I wrong.
The app is just one simple game for two players where you take turns trying to guess an octopus' secret number between 1 and 10, 10-20 etc (options take you as high as 30.) As you guess, you are informed as to whether the number is too high or too low and the numbers are covered by the octopus' arms. When you get it, you score a point. Best of five wins. And that's it!
I did a little research and found that the app ties in with the McGraw Hill "Everyday Matahematics" scheme of work. Whilst this justifies the limited scope of the app somewhat, it does still reek of a cash in opportunity - why not launch an app that contains a range of games based on your scheme rather than sell them to educators separately?
LIMITATIONS: There's just no depth to it compared to so many other maths apps! Little scope for differentiation, limited challenge, slow pacing....
CONCLUSION: So little to it, that it is hard to recommend it as a learning tool unless you subscribe to McGraw Hill's full maths scheme... and even then it's hardly essential. 1/5
As a mental maths starter activity
As a lead in to inequalities work