I have these apps, my kids love them,and they do get many concepts across very quickly. It's good to know that they are part of a bigger cause.
However, if the apps described in the article are the same as those in the App Store, then some of the concepts are very simple (the early levels can be done by a 2 year old) so it isn't surprising that older children do very well after they are exposed to them.
The later levels on number-lines and fractions are a bit more challenging, it will be interesting to see how well children do on those.
Regardless, even though some of the exercises seem boring and repetitive to an adult, they do seem to have the knack of holding children's' attention.
However, if the apps described in the article are the same as those in the App Store, then some of the concepts are very simple (the early levels can be done by a 2 year old) so it isn't surprising that older children do very well after they are exposed to them.
The later levels on number-lines and fractions are a bit more challenging, it will be interesting to see how well children do on those.
Regardless, even though some of the exercises seem boring and repetitive to an adult, they do seem to have the knack of holding children's' attention.