1. Cognitive load Read text Read text with transitions
Narration with different text
Images with narration
Cognitive load
In this demo, I’m going to show you four quick examples that represent different ways to present the same information. Each is progressively better in terms of cognitive load.
What I did was use the exact same script for narration and slightly altered the way it’s presented on screen.
The first is a screen with bullet points and I am going to read the text verbatim.
The second is a little better since I am progressively reading the text and only revealing a little at a time.
The third has condensed text with the same narration.
The fourth is a the same script, but instead of text, I am supporting the script with images.
Which approach do you think is most memorable?

2. Cell Phone 101
When you make a call on your cell phone, it is linked to the telephone network via towers.
These towers cover a circular area called a cell.
A large region can be split into a number of cells.
This allows different base stations to use the same frequencies for communication links and allows thousands or even hundreds of thousands of mobile telephone users .
The cell phone network automatically keeps track of the strength of the signal from your phone.
As you move, the base station receiving the strongest signal changes, and the network “hands off” your call from one base station to another.
Read verbatim

3. Cell Phone 101
When you make a call on your cell phone, it is linked to the telephone network via towers.
These towers cover a circular area called a cell.
A large region can be split into a number of cells.
This allows different base stations to use the same frequencies for communication links and allows thousands or even hundreds of thousands of mobile telephone users .
The cell phone network automatically keeps track of the strength of the signal from your phone.
As you move, the base station receiving the strongest signal changes, and the network “hands off” your call from one base station to another.
Read verbatim with transitions

4. How Do Cell Phones Work? Cell phone – towers - telephone
Towers cover a circular area
many in one area
Towers share frequency
more users on one frequency
Networks measure signal and hands off to tower
^When you make a call on your cell phone, it is linked to the telephone network via towers.
^These towers cover a circular area called a cell. A large region can be split into a number of cells.
^This allows different base stations to use the same frequencies for communication links and allows thousands or even hundreds of thousands of mobile telephone users .
^The cell phone network automatically keeps track of the strength of the signal from your phone.
As you move, the base station receiving the strongest signal changes, and the network “hands off” your call from one base station to another.

5. Share the same channel
^When you make a call on your cell phone, it is linked to the telephone network via towers.
^These towers cover a circular area called a cell.
^A large region can be split into a number of cells.
^This allows different base stations to use the same frequencies for communication links and allows thousands or even hundreds of thousands of mobile telephone users .
The cell phone network automatically keeps track of the strength of the signal from your phone.
As you move, the base station receiving the strongest signal changes, and the network “hands off” your call from one base station to another.