Dive Theory for PADI Instructors

All Dive Theory for PADI Instructors topics are fully covered in the Online PADI IDC Theory Preparation Course. 

PHYSICS!  It really is easier than you think!
We need to be divers, not mathematicians. And that helps! Let me explain.
Left and Right sides of our brains
OK, well it’s now proven that this is just a myth! But you know what I mean! Some people love analytical thinking, and others are more practical.
Physics Questions
Physics questions usually involve both. For example practical divers love playing with lifting bags, but don’t like working out exactly how much air needs to be put into it.
Good News! Times or Divide.
The good news is that in mathematics, we have Plus, Minus, Multiply and Divide, But in Physics questions, we mostly use only two. Divide or Multiply. 
Our practical heads already knows if something will get bigger or smaller, so from then on it’s easy.  The second video on the next page describes the “Box Method”. You’ll love it!

PADI IDC Theory

More information on our online courses click here:

IDC Guide to success

PHYSIOLOGY!   It really is easier than you think!
I know that there seems to be a lot of complicated words connected to lung overexpansion injuries, but you don’t have to remember the words, You just need to recognise them. In the video on this page, you’ll get some good tips on how to remember them.
Decompression Illness and Respiration
These two subjects make up the most of physiology exam questions.  I’ve covered some of the questions with these videos
PADI IDC theory Preparation Course
The online course gives you a lot of practice questions and includes other Physiology subjects like Ears, and a lot of First Aid subjects.

PADI IDC Theory: Skills and Environment

SKILLS and ENVIRONMENT! It really is easier than you think! 
This is usually the subject that most people find easiest. It has most to do with diving!
Although there are questions from a variety of subjects. 
Other topics to brush up on! 
In addition to “Skills” – Usually Open Water diver skills, and “Environment” – Usually to do with Major Ocean Currents, 
You’ll find questions on:

  • First Aid
  • Rescue
  • Navigation

Every, subject, every topic can be found covered in detail on the PADI IDC Theory Preparation Course
With 700 practice questions to test your progression! 

PADI IDC Preparation
PADI IDC Preparation Theory

Dive Theory for PADI Instructors: Equipment

EQUIPMENT! It really is easier than you think! 
Equipment is another subject that has a variety of topics. 
Regulators and Cylinders
PADI IDC and IE questions usually focus around these two subjects. 
There is a great video explaining most regulator questions here
Other Subjects:

  • SMB’s
  • Computers
  • Lift Bags
  • Nitrox

Every, subject, every topic can be found covered in detail on the PADI IDC Theory Preparation Course
With 700 practice questions to test your progression! 

Dive Theory for PADI Instructors: RDP

RDP! It really is easier than you think!
On your PADI IDC and IE exams, you’ll find questions in two main areas:
Design of the RDP

This truly is easier than you think! Why? Because most of the answers are right in front of you, either in print on your table, or under the “Rules” tab of your eRDPml
Dive Planning
This is where you’ll need to find pressure groups, minimum surface intervals or maximum depths.
Here you’ll find a couple of videos from the PADI IDC Theory Preparation Course.

Dive Theory for PADI Instructors