But when you let students work at their own pace -- we see it over and over again -- you see students who took a little bit extra time on one concept or the other, but once they get through that concept, they just race ahead.
un mēs to redzam atkal un atkal un atkal - jūs redzat skolēnus, kam vajadzēja nedaudz papildu laika vienā vai otrā tēmā, bet, kad viņi to izprata, viņi atkal dodas uz priekšu.