Railway 2
On each page, TOGGLE CLICK
the large image to see ANSWERS
and
QUESTIONS alternately.

On each page, SAY OUT LOUD the principal elements shown
and/or numbered.

GO BACK and redo those you didn't get first time, then repeat the exercise:
- tomorrow
- in 2, 4 & 8 days time

... or until you can do them all perfectly and instantly ...