Sir: Covid-induced school lockdowns were expected to have a negative effect on children’s and teenagers’ NAPLAN results. Concern appears to be greatest among parents of six- to twelve-year-olds, because parents doubt their ability to home-school them successfully during their important formative years. Teenagers, on the other hand, could follow lessons and complete assignments online in most circumstances and may have been little affected. To examine these conjectures, I checked on the official Australian Curriculum Assessment and Reporting Authority website (nap.edu.au) for the NAPLAN results nationally and also the results for Victoria, which had the longest lockdown. I compared the results for…