This paper, drawing on the philosophy of Karl Popper, outlines the tra
nsmission theory of teaching, and argues that it reflects discredited
ideas about learning and Knowledge. The transmission theory is critici
sed in terms of its implied acceptance of theory-fi ee observation, le
arning by an inductive process, and secure Knowledge. Popper's alterna
tive theories of learning and the growth of Knowledge are discussed, a
nd some of their implications for educational practice are outlined. R
eaders who are in sympathy with the transmission theory are challenged
to give an account of the processes involved, one not based on analog
ies between people and inanimate objects las in the idea of 'deliverin
g' a national curriculum).