The case of the geometric mean in Education

When students get marks for different components of assessment in courses at school or university, then the overall mark for their course is usually some kind of weighted arithmetic mean. In this short post I want to make the case that use of the weighted geometric mean would in many cases be much more useful. … Continue reading The case of the geometric mean in Education

Opinion #4: Counselling, tutoring, listening and why so many institutions fail at it.

Students and school pupils are going through a very tough time in these months of global pandemic and weeks of necessary street protest against racism, discrimination and (police) violence. Something that keeps coming up is the need to listen. Yet it seems to be the key quality at which we fail, even in schools and … Continue reading Opinion #4: Counselling, tutoring, listening and why so many institutions fail at it.

Opinion #3: The narrative of much that is written about education is false.

Utilitarian narratives about Education are so prevalent nowadays that we tend to take them entirely as given, or worse as evidence-based. Often we don't even recognise they are based on layers or assumptions that almost all fail when confronted with reality. So let me be polemic and argue what is false about so much that … Continue reading Opinion #3: The narrative of much that is written about education is false.

#CoViD19: A #coronavirus #modelling update

It has been a few days since the Chinese authorities changed their definition of "confirmed case" in describing the #coronavirus outbreak. In a previous post I checked whether my model needed modification, which seemed only minor. Now with a few days more of 'new' data, let's see what we find. Mortality shifts There is a … Continue reading #CoViD19: A #coronavirus #modelling update

Modelling #CoViD19: A #Coronavirus modelling update after case-redefinition

The breaking-news last night was that Chinese authorities decided to redefine what a "confirmed case" was. This lead to an immediate jump in the number of confirmed cases as well as of confirmed deaths. Does this mean that my model laboured over the past few days was ripe for the trash can? Not really! Case … Continue reading Modelling #CoViD19: A #Coronavirus modelling update after case-redefinition

Modelling #CoViD19: A #Coronavirus modelling update

In a previous post , 4 days ago, I presented some common-sense modelling of the #Coronavirus #outbreak which was simply an attempt to check the sensibility of the official numbers. I updated that modelling two days ago using the data of two days for some minor adjustments. Now, again two days later, a second update. … Continue reading Modelling #CoViD19: A #Coronavirus modelling update

Modelling the #CoronaVirus outbreak

The #Coronavirus outbreak of 2019/2020 is currently dominating the news cycle. Let's have a look how the official data from the Chinese Ministry of Health compare to three relatively simple models for such a single-centre outbreak and ask ourselves what this tells us. Simple exponentials The simplest view of the outbreak of an infectious virus … Continue reading Modelling the #CoronaVirus outbreak