Group items tagged

 A brand-new study on the academic effects of homework offers not only some intriguing results but also a lesson on how to read a study — and a reminder of the importance of doing just that:  reading studies (carefully) rather than relying on summaries by journalists or even by the researchers themselves.

First, no research has ever found a benefit to assigning homework (of any kind or in any amount) in elementary school.  In fact, there isn’t even a positive correlation between, on the one hand, having younger children do some homework (vs. none), or more (vs. less), and, on the other hand, any measure of achievement.  If we’re making 12-year-olds, much less five-year-olds, do homework, it’s either because we’re misinformed about what the evidence says or because we think kids ought to have to do homework despite what the evidence says.

Second, even at the high school level, the research supporting homework hasn’t been particularly persuasive.

One of the interesting things about the mind is that even though we all have one, we don't have perfect insight into how to get the best from it.

Karpicke and Roediger asked students to prepare for a test in various ways, and compared their success

On the final exam differences between the groups were dramatic. While dropping items from study didn’t have much of an effect, the people who dropped items from testing performed relatively poorly: they could only remember about 35% of the word pairs, compared to 80% for people who kept testing items after they had learnt them.

I am talking about data-driven instruction–a way of making teaching less subjective, more objective, less experience-based, more scientific.

Data-driven instruction, advocates say, is scientific and consistent with how successful businesses have used data for decades to increase their productivity.

Of course, teachers had always assessed learning informally before state- and district-designed tests. Teachers accumulated information (oops! data) from pop quizzes, class discussions, observing students in pairs and small groups, and individual conferences.

The fundamental premise of Moneyball is that the labor market of sports is inefficient, and that many teams systematically undervalue particular athletic skills that help them win. While these skills are often subtle – and the players that possess them tend to toil in obscurity - they can be identified using sophisticated statistical techniques, aka sabermetrics. Home runs are fun. On-base percentage is crucial.

The wisdom of the moneyball strategy is no longer controversial. It’s why the A’s almost always outperform their payroll,

However, the triumph of moneyball creates a paradox, since its success depends on the very market inefficiencies it exposes. The end result is a relentless search for new undervalued skills, those hidden talents that nobody else seems to appreciate. At least not yet.