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Course and Lesson list consists of the following sections:
                   Taskbar: It allows to select the keyboard layout and level of the lesson to edit.
                    Toolbar: It includes Course menu, Lesson menu, Remove selected lesson or course, Lesson type and Split
                   a lesson into multiple small lessons options.
                   Navigation Tree: It shows the existing courses and lesson hierarchy.
                   Properties: It is the area where you can edit course/section/lesson properties.
                    Editing Panel: It is the area where you can edit the text of the lesson and course in the Navigation Tree.
                    Table Analysis: It displays the number and percentage of words, characters, spaces and special characters
                   pressed in the lesson.
                    Virtual Keyboard: It highlights the characters used in the selected lesson. Keyboard of the desired language
                   can be selected from the ‘Keyboard layout’ list.

                   WORKING WITH LESSON EDITOR

                 Let us now learn how to work with lesson editor.
                 To Add a New Lesson:

                 Step 1:   Click on Lesson menu.
                                                                      1
                 Step 2:   Click on Create new lesson from the toolbar.
                 Step 3:  Click on the editing panel and start typing
                         the lesson.                                  2
                 Step 4:  Right-click on  the  lesson name  and  then                                                  4
                         click on the Save selected lessons option.                         3

                   CALCULATING THE TYPING SPEED
                 An average speed of 50 to 80 WPM is maintained by a professional typist which can be changed to 80 to 95
                 or above depending on the category of the work done on a computer.
                 Typing speed can be measured in different ways, each with varying levels of accuracy:
                   Counting how many words you type in a certain time (the less accurate).

                   Counting how many characters you type in a certain time.
                   Counting how many keystrokes (presses of keys) you make in a certain time (the most accurate).
                 Additionally, there are two main types of typing speed measurements:
                   Gross speed, which measures how fast you type without considering mistakes.
                   Net speed, which takes into account any mistakes you make, giving a more accurate measure of your
                   actual typing skill.
                 A simpler explanation and formula for each typing metric is given below:
                    Words Per Minute (WPM): Words Per Minute (WPM) is a measure of how many words a person can type
                   accurately within one minute. It includes both correctly typed words and those with errors.
                     Formula: WPM is calculated by dividing the total number of words typed (correct and erroneous) by the
                   time taken in minutes.
                   Example: If you type 150 words in 2 minutes, your WPM would be 150/2=75 WPM.
                    Net Words Per Minute (Net WPM): Net Words Per Minute (Net WPM) represents the typing speed
                   excluding any words that were typed incorrectly. It focuses solely on the words typed correctly.

                   Formula: Net WPM is derived by subtracting the rate of words typed with errors (per minute) from the
                   overall WPM.
                   Example: If your WPM is 75 and you made errors equivalent to 10 words in 2 minutes, your Net WPM
                   would be {75−(10/2)} =70 Net WPM.


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