Studies demonstrate people often scan and skim online content and comprehension is often low. Its important to actually digest and integrate what we are reading for the sake of critical thinking.
Pretty self-explanatory. If you're reading this, you've got this level down.
Quickly skimming and scanning to get the basic gist of the writing. Quite common for most online reading. It doesn't necessarily lend to comprehension or understanding.
This is when you start putting your mind to work. A thorough and complete form of reading for the sake of understanding. Chewing and digesting the content.
Reading and comparing multiple works on a given topic in order to reconstruct and order the conversation on that subject. Develops deep fluency.
Scanning and skimming often lead to low comprehension and confirmation bias.
Synoptical reading is essential to develop critical analysis.