Jul 25, 2021 10:00:00

Review of 'Cognical', a learning site where you can delve into 'insufficient knowledge' with a 'tree structure' to understand the knowledge of mathematics and physics

Mathematics and physics that have a wide range of fields and require various knowledge. 'Cognical ' is a learning site where you can learn from the basics of the basics by digging into the

parts that you do not understand due to the tree structure. How can we learn something? So, I actually tried using cognical.

Cognical
https://cognicull.com/en

The top page of Cognical looks like this. 353 pieces of various knowledge of mathematics, natural science, engineering such as 'potential energy by elastic force of spring' and 'potential energy' are lined up.

When I clicked on '

thermal vibration ' as a trial, a page describing thermal vibration was displayed, saying, 'Thermal vibration is the vibration of atoms generated by a set of atoms such as molecules.' In addition, an animation image of molecules and atoms vibrating is displayed.

As I read on, 'If you do not understand the explanation' is displayed as 'You may lack the following knowledge.' 'Molecules' and 'kinetic energy' were displayed below, so this time click 'kinetic energy' to gain knowledge about kinetic energy.

Then, I moved to the page that describes kinetic energy. You can see that 'c' is selected in the tree displayed at the top.

In this case, the 'a' in the tree is 'thermal vibration'. To obtain knowledge of thermal vibration, knowledge of 'molecule' of 'b' and 'kinetic energy' of 'c' is required, and to obtain knowledge of kinetic energy, 'energy' of 'e' It is a mechanism that allows you to delve into the knowledge that you lack one by one, saying that you need to know about the 'uniform acceleration linear motion' of 'f'.

When I dug down one of the roots of the tree to the end, it looked like this. 'Lv1' written below the alphabet indicates how much knowledge you can dig into, including that knowledge. In this case, the 'quadrant' is Lv1, so there is no knowledge to dig into. In addition, it is shown that there are 99 pieces of knowledge required to learn thermal vibration, including 'thermal vibration'.

Knowledge that you think you have acquired can be deleted from the tree. For example, if you think that you understand the 'definite integral' of 's', click the scissors mark on the upper left ...

An animation was displayed and knowledge below the definite integral was removed from the tree. The remaining 99.0% of knowledge is required to learn thermal vibration.

Cognical can pick up and delve into only the knowledge that you do not understand, so even people who are not good at math and physics can learn at their own pace. It is a learning site that is easy to imagine with animation and comfortable to operate.