This video lesson provides a detailed explanation of vowel sounds. The vowels in English are classified into two main groups namely the pure vowels also called monophthongs and diphthongs. The monophthongs are further sub-classified into short vowels and long vowels. This lesson contains a detailed explanation of the description of each monophthong with the aid of the English vowel chart.

The lesson objective includes:
- The English letters and sounds
- Classification of vowel sounds
- Sub-classification of monophthongs/pure vowels
- Diagram of the English vowel description
- The three dimensions of the vowel description