What makes Bangkok a Learning City?

The heavy downpour had just ceased and with umbrella in hand, 72-year-old Prateep Ungsongtham Hata, widely known as Khru Prateep ("Teacher Prateep"), led us single file through the damp narrow alleys of Klong Toey community, frequently pausing to reciprocate cordial greetings from community members. At one point, she called our attention to what seemed like a pile of rubble.