Philosopher and scientist Michael Polanyi used the term tacit knowledge to describe understanding that is implicit and difficult to state with precision. For this reason, tacit knowledge cannot be stated as an algorithm, so it cannot be downloaded to digital devices. According to Polanyi, tacit knowledge is necessary to frame a problem, to develop a Read More
Author: Gary Ackerman
Is It an Innovation?
Consider the overhead projector as an educational innovation. Prior to the overhead projector, a teacher wrote notes and drew pictures on slate boards with chalk. When writing or drawing, a teacher’s back was to the students and the contents were bounded by the edges of the slate. With the overhead projector, teachers faced the students Read More
On Computer Memory
The keyboard strokes that become digital displays that humans recognize as words and sentences are actually a series of digital signals. Those signals are stored as magnetic signals or optical signals on disks or electrically in memory. As long as the physical media are safe and the file is not otherwise compromised, the messages can Read More
Types of Professional Development: Awareness Presentation
Because information technology (hardware and software as well as network resources) changes so quickly and new tools are developed and refined so quickly, it is likely that options exist that even connected educators are not aware exist. The purpose of an awareness presentation is simply to introduce a technology or strategy to an educator (or Read More
On Test and Assessments… A Meandering Response to a Social Media Push
I posted on social media recently: Can educators devise assessments that can predict how students will develop rather than what they did? I was pushed to explain myself and that got me thinking what exactly I meant. So, here goes! We all know the culture of assessment in education. We are charged with documenting what Read More
Computers Arrive in Schools
In the 1970’s computers entered the consumer market, and hobbyists began purchasing computers. By 1981, personal computers could be purchased for less than $1000, and amateur enthusiasts (including children) were writing their own programs to satisfy their own interests and curiosities, but consumer computers were still marginalized and largely a hobby. Joseph Deken, a statistician Read More
On Computer Mediated Communication in Schools
The events I recorded in the papers I wrote as an undergraduate student and in my journal kept during my first few years working as a teacher and the few surviving lesson plans and resource folders from my pre-Internet years (recall that I entered the teaching profession using an Apple IIc computer in 1988), all Read More
On IT Roles in Schools
In schools today, most professionals who work with technology typically fall into one of six groups. The descriptions of the duties assigned to these individuals illustrate the range of tasks necessary to manage and use the very complex information technology infrastructure encountered in a typical school and the scale of the system that requires support: Read More
Cognitive Load Theory: Brief Definition
Cognitive load theorists recognize three types of cognitive load: Intrinsic cognitive load is associated with the learner thinking about the information and the task. Intrinsic load does increase as the task becomes more complex, but steps to break the task down into parts and the use graphic organizers (for example) to help store and organize Read More
On School Planning
In general, one can surmise there is consensus regarding the role of formal educational systems: the public supports and maintains the system to prepare youngsters to participate in the economic, political, and cultural life of society. The nature of the experiences designed to meet this purpose changes over time. Traditionally, the domain of education includes Read More