Grades. Formative assessments. Summative assessments. Whatever we call these things, teachers have the responsibility to report the degree to which students have learned what they were supposed to learn. While this seems a straight-forward aspect of the work, it is highly contentious, and different educators have very different perspectives on it. I have addressed this Read More
Category: Using Data
When Darwin First Presented
Historians of science speculate widely on the reasons why Charles Darwin waited so long to publish On the Origins of Species. (For those not familiar with the story, Darwin had conceived the theory of natural selection in the years after his voyage on the HMS Beagle ended in 1836, but he did not publish until Read More
Why We Compute on the Cloud
Vendors such as Amazon Web Services (AWS) provide highly configurable systems that can be used to replicate many of the same functions that used to be configured on physical servers. Those vendors also provide many related services they can be enabled and configured on an “as needed” basis. The benefits of such systems are: Security Read More
Knowing Your Data
For the last 20 years or more, we have expected every leader to be “data-driven.” If they don’t claim to ground decisions in data, then it is assumed they are just making up what they want to do. Despite the chatter about data, I have found those who make the strongest claims to be data-driven Read More
Elevator Pitch on Error
In science, we make our living as it were by measuring. As a human activity, measurement involvessome errors. When a making measurements, there are (usually) three potential sources of error: The person who is making the measurement could make a mistake. The same person who measures the same thing more than once is likely to Read More
On Resources
As researchers and seekers of information, we depend on words, images, and other media created by others. Not all resources we encounter in the 21st century can be considered of equal worth. While differentiating “fact” and “opinion” cannot be done with reliability, researchers select information from some sources rather than others. This page identifies resources Read More
Completing Your Data
As an undergraduate student studying botany, I got quite good at using dichotomous keys. Mine is still on my bookshelf and the $40.00 price tag is still attached (it was among the most expensive books I bought during my studies). It is almost 800 pages of plant descriptions along with either or questions. Does the Read More
What Should We Be Teaching About Research
Research is difficult, but highly engaging, work. By having students ask questions, and answer those through their research, the purpose of the work becomes more clear and the work is more interesting. Allowing students to define problems and refine questions make this difficult work more engaging. Research requires one to follow recognized protocols that make Read More
On Research Literature
Here is one more post culled from old materials I am cleaning out. When I last taught educators who were emerging researchers, I used this to help them navigate the information sources we encounter: As researchers and seekers of information, we depend on words, images, and other media created by others. Not all resources we Read More
Three Points About Data and Standards
The purpose of education is to help people learn. Learning is a natural physiological process of the human brain and the nature of those processes define the rules within which educators (and education policy makers) must play. While it might be convenient for policy makers to define test scores as a measure of learning, those Read More