english: It's an impressive track record, and so we look back and we say, well, we didn't really exactly work this out theoretically from the start, but when we look back, there are theoretical movements in science education.
non_english: Dikkate değer bir oran, dolayısıyla geriye dönüp, - yani, bunu baştan planlamıştık - ama geri baktığımızda, bilim eğitiminde teorik hareketler var.