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In a usual physics book designed for IIT JEE preparation, each chapter contains an average of 50 complicated short cut formulas, and there are about 24 chapters, so in total there can be about 50*24 = 1200 formulas. An almost impossible challenge to be memorized by an average student, which makes the entrance so hard to crack. IIT JEE preparation is not about critical thinking, it's about remembering the formulas, and speed of executing the formulas. This is the 2018 solved paper: Not a single seems to have without formula. https://drive.google.com/file/d/16HkkgWtiOT7T4p0ajYhis9gTqBT2SPGo/view?usp=sharing Please go through the book: Paul Hewitt Conceptual Physics Each chapter contains not more than two to three important formulas, that's all required because all other short cut formulas are based on it. An example question from the book of Paul Hewitt, that helps you to understand conceptual understanding, not executing complicated formulas: An e...

The most difficult concept for teaching programming to new students is looping. Students often fail to understand looping because they don't run the loop in their head , and don't think what will be the value of the variable in each loop. The following way of commenting on the loop will help students to understand the loop quickly. Ask them to run the loop in the head, and then comment on what the variables will be in each step of the loop. Remember to maintain the format while writing the comment, don't use short cuts, it will hinder the understanding. Loops with comments squares = [] for value in range(1,11): #loop1 -> value=1, #loop2 -> value=2, #loop3 -> value=3 square = value**2 #loop1 -> value=1, square=1, #loop2 -> value=2, square=4, #loop3 -> value=3, square=9 print(squares) #loop1 -> squares=[], #loop2 -> squares=[1], #loop3 -> squares=[1,4] squares.append(square) #loop1 -> square=1, squares=[1], #loop2 -> square=4, squares=[1,4...