From Dagenham East either take the 103 to the Ballards Road stop. 

Alternatively, it is a 10 minute walk to the nursery.  Turn right out of the station onto Rainham Road and walk downhill across The Bull  roundabout and take the first right after the roundabout onto Leys Avenue.  Go down Leys Avenue past the school and turn into Wellington Drive (Wellington Drive is a crescent with two entrances and the second one is the best one to use - it's a long walk round the whole crescent if you take the first turning!).  The nursery is on the right.