Review: The Knowledge Gap

 If you're a parent of elementary school kids, you'll have encountered the metrics of measurement in an American school system, where kids are taught reading skills, such as identifying the topic of a sentence, and summarizing a paragraph. I remember being very impressed by this, since that was something I didn't remember doing until much later in my schooling.

Natalie Wexler's thesis in The Knowledge Gap is that this isn't a sign of a high functioning educational system but is a pointer to the lack of curriculum in the United States. The United States is unique among developed countries in that there's no national curriculum of study that the entire country follows. Instead, all the standards (in Common Core or others) are based on skills. This works in Math --- there's nothing in Math where knowledge doesn't equate to skill. But Wexler claims it fails in reading, because reading comprehension is tied completely to the knowledge you have. As an example, Wexler provides a paragraph describing a cricket match which would be incomprehensible to most Americans, since most Americans don't know what cricket is.

There's apparently a curriculum based approach called Core Knowledge, which isn't widely adopted. Chapter after chapter describes how controversial which knowledge to impart to children is -- lots of proposals get shot down or mired in politics, which is how we end up with the current situation, where many Americans don't know that the civil war was fought over slavery, or that the first 10 amendments to the constitution are called the bill of rights.

There's definitely a stigma attached to learning facts --- those of us growing up in Asia remember being told to memorize pointless facts, and history being reduced to memorizing dates that could be looked up with a quick web search or wikipedia. Nevertheless, Wexler makes a good point that if you're going to test reading comprehension, you might as well define a good curriculum so that the actual comprehension is important. There's also a ton of evidence that kids love it AND they do far better in test scores driven this way.

I didn't grow up in the American education system, but I too remember being disappointed by science classes in school getting most of my science education from popular media like Carl Sagan's Cosmos instead. That's unlikely to change unless parents demand it. I wonder if parents who grew up without this background, however, would even know to demand it!

I hope Wexler's criticism works and that we get a better knowledge-based curriculum in the United States. Apparently New York is starting to change. I wouldn't hold my breath though --- as a parent, though you can help out, since it's your job to impart knowledge as well!

The book gave me much to think about. Recommended.