Instead of just following the train, it should follow the train while the train is moving, but when it gets close to an equation it should lock onto that equation.
If time, we could make it so you can finish an equation and then go to the next one while the train keeps moving, making it like you have a combined amount of time to complete a few different graphs, so if you do one nice and fast then you get more time to do the others.
This will be more complicated though, so will probably not get done.
Instead of just following the train, it should follow the train while the train is moving, but when it gets close to an equation it should lock onto that equation.
If time, we could make it so you can finish an equation and then go to the next one while the train keeps moving, making it like you have a combined amount of time to complete a few different graphs, so if you do one nice and fast then you get more time to do the others.
This will be more complicated though, so will probably not get done.