Confined Water Teaching Assignment 1 – IDC

Open Water Diver Skills

Open Water Diver Skills

The Confined Water Teaching Assignments that make up the IDC are designed to teach you how to present the topics to the students in a confined water situation. Again there is a procedure to follow.

My first CWTA was taken from Confined Water Dive 3

Neutral Buoyancy Low Pressure Inflate Method

Briefing

(state who you are and what you are going to do)

Hi my name is JumpSailDive and I will be your instructor today. Here we have TJ who will be assisting us on this confined water dive while we practice Neutral Buoyancy Low Pressure Inflate Method.

Objective: (read this from the CW3 slate)

So the objective for this dive is to Use the low-pressure BCD inflation to become neutrally buoyant. Gently rise and fall in a controlled manner, during inhalation and exhalation.

Value: (why is this important)

This is a method to guide you into getting the feel of neutral buoyancy using your LPI, it will help you protect delicate marine life and stay off the reef.

Description: (Steps necessary to perform skill)

This is how we will perform the skill…

  1. Deflate BCD.
  2. Position body face down, take a few breathes and see if you rise.
  3. If you do not rise, locate LPI button and add a small amount of air.
  4. Take a breath and wait and see if you rise up after your inhale and down after you exhale; if nothing happens add more air in small increments until you start to rise.
  5. Use lung volume to raise chest and upper body on slow inhalation and return to bottom with exhalation.
  6. Do not hold breath.

Signals: (which signals that you will use during the demonstration of the skill)

Now I will be using the following signals…

  1. Signal for the skill
  2. Adding air in small amounts
  3. Up
  4. Down
  5. you-watch-me
  6. breathing in and out
  7. Redo

Organization:

So when we go down we will….

  1. Have you kneeling on the bottom
  2. Backs to the pool wall
  3. My assistant will watch you
  4. I will demonstrate (just watch)
  5. I will come to you and ask you to show me
  6. If there are any problems I may ask you to do the skill over

During the Dive

Reminders:

  1. GO SLOW!!!!!
  2. Remember the control technique (be close to the student)
  3. Congratulate student on success
  4. Reminder of error

Possible Problems:

  1. Too much/too little inflation/deflation of BCD
  2. Failure to allow sufficient time before adding/depleting air from BCD
  3. Failure to breathe slowly and deeply – fine tune breath control
  4. Using hands/legs off of the bottom.

Possible Solutions:

  1. Only add a little air at a time, if no move then add more
  2. Take your time. It doesn’t happen right away it takes a second for the change of volume to come into effect.
  3. Breathe slower and deeper.
  4. Don’t push off the bottom, add a little more air to the BCD.

Debriefing

Positive reinforcement: (pick a problem that no-one had and turn it into a positive)

Well done everyone! I am impressed at how easily you managed that skill. I really like the way that you all took your time before adding air to your BCDs

Identify problems: (state problem then solution)

I noticed that some of you were pushing off of the bottom with your hands. Don’t do that, instead use the LPI and add a little more air to the BCD.

I also noticed that some of you were adding too much air to you BCD in one go. Remember to add air in small increments and wait to see if there is any change.

Restate Objective:

So the objective for this dive was to Use the low-pressure BCD inflation to become neutrally buoyant. Gently rise and fall in a controlled manner, during inhalation and exhalation.

Reinforce Value:

This is a method to guide you into getting the feel of neutral buoyancy using your LPI, it will help you protect delicate marine life and stay off the reef.

—–

So how did I do? Well I scored a perfect 5. I was really pleased, as I had been worried about this skill due to the fact that students are using the LPI and can easily add too much air to the BCD. But by being close and using the control method I was in the right place at the right time to sort the problem.

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