Tag Archives: data

Alpha School

Let’s have a quick look at Alpha School. Here’s the pitch on their web site:

Our AI tutor gives students 1:1 personalized education, providing coursework at their individual pace and the appropriate level. Students progress with concept-based mastery and without any knowledge gaps.

We motivate kids by giving them the gift of time to pursue the things they want to do and develop life skills. Adults in the room support motivated students to foster a growth mindset and independent learning.

Kids supposedly work one on one with an AI tutor for two hours a day, and the rest of the day consists of learning skills and “life lessons” that basically sound like summer camp. In fact, the human employees sound exactly like camp counselors to me.

I first heard about it on the Moonshots podcast, which I find informative and entertaining but also blurs the line between news and advertising.

The company claims to have hard data (standardized test scores) showing that their approach is vastly superior to more traditional education. It’s a nice story and I kind of want it to be true, but when journalists dig in they are finding the numbers may be cherry-picked at best. This source is ProPublica and something called the Texas Tribune – the former I admit is not an impartial journalistic organization while the latter describes itself as a “nonpartisan local newsroom”. (The company advertising pitch is obviously not an impartial source.) So the facts and figures below could also be cherry-picked on the negative side, but nonetheless here are a few:

Test results published by the Texas Education Agency don’t back up that claim. The scores indicate that students may have performed worse on state tests than before Alpha’s involvement, according to several education experts who reviewed them. The portion of students who achieved “approaches grade level,” the lowest category that counts as passing the test, slightly rose, from 19% to 21%. The share of students that the test showed were at their grade level dropped from 10% to zero after the Alpha partnership…

ProPublica and the Tribune specifically looked at the Brownsville student outcome data that Alpha self-published, which does not include detailed test scores to prove academic growth for all students, according to several education experts who reviewed it. There was also inconsistency in how Alpha presented the data. An Alpha leader told Texas education officials that  students across grade levels in the Brownsville campus had scores that jumped from 30% to 80% mastery. But Jennifer Steele, an education professor at American University, said that Alpha’s published report shows those improvements for only its second graders, who may not be representative of the entire school…

In their application to form a charter school in Arizona, Alpha leaders had predicted 65% of their students would test proficient in English at the end of the first year, but just 28% did, the state test scores showed. They projected 60% could reach that level in math. Only 10% achieved it. 

It makes sense that we will see some move toward one-on-one AI teaching in schools. Hopefully this will be data driven, but clearly there are also powerful financial incentives and political lobbies at work. The AIs are getting better, and school administration (both public and private) will have an incentive to reduce payroll where they can. Teachers are a powerful interest group in their own right, particularly in public schools, some U.S. states more than others. We will see where all this lands. I for one would not be comfortable sending my children to Alpha School now. Maybe as a summer camp, not as a substitute for traditional education.

How do Supreme Leaders invest?

Okay, I’m talking about U.S. Supreme Court justices here. Not to be confused with the Iranian system where an unelected ideological leader for life has the right to overrule the decisions of elected leaders without explanation or question…oh shoot, it is basically the same thing, except we have nine of them!

Anyway, ProPublica has put together a dashboard of data on their required public disclosures. They take a lot of privately-funded trips, most often to speak to students at law schools. That kind of makes sense. But some accept gifts from wealthy individuals, and how can that be anything but corruption? They also write books, and do book tours while in office. This seems strange to me, and I wonder if this sort of thing goes on in other countries. Maybe I can see them writing technical articles in legal journals or trade publications, because other practicing lawyers are going to be interested in what they have to say. But I can also see an argument that they write plenty on the job, and they should put their energy into explaining why and how they came to the decisions on the cases before them.

Anyway, another fun thing is you can click on any justice and see what their retirement portfolios look like. And their retirement portfolios look something like mine, with index funds from companies like Vanguard. Only with more zeros. And real estate tends to be a big chunk – I guess if you own a nice home or two in the New York or DC metro areas and your net worth is only a few multiple millions of dollars (typically 5-10 is what I saw), that one multi-million dollar condo can be a big chunk. Come on, you guys are old and you clearly have a nice retirement setup all queued up. Go for it!

house sale price premiums by month and city

Zillow has some data on how much above average home prices are by month of the year and by US city. In general, prices are higher by about 1-3% in March-June. I assume this has something to do with the U.S. school year. It may be somewhat of a self fulfilling prophecy though. Last time I was in the home buying market, which was almost exactly 10 years ago, I started looking for listings in January, but there really was nothing to look at until March. So people in my city (Philadelphia) don’t start listing until March, and by the time you go through the process it seems like most closings are going to be in the May-June time frame (precisely when mine was). I wonder if refinancings show up as home sales in this data though, or if they have some way of knowing when the properties actually change hands. That could skew the data because people can refinance any time of year, and they are likely to refinance when interest rates are relatively low and prices therefore relatively high.

measuring blood pressure through your @$$

This seems like a good idea actually – a toilet seat that measures your heart rate, blood pressure, and oxygen level. It’s designed for hospitals, but it makes a lot of sense to me. It would happen automatically, built automatically into your daily routine and with no wasted time or extra effort. You could have it sent right to your doctor if you wanted to.