Vowel whose quality does not change over the duration of the vowel is called a monophthong. Monophthongs are sometimes called "pure" or "stable" vowels. A vowel sound that glides from one quality to another is called a diphthong, and a vowel sound that glides successively through three qualities is a triphthong. All languages have monophthongs and many languages have diphthongs, but triphthongs or vowel sounds with even more target qualities are relatively rare cross-linguistically. English has all three types: the vowel sound in "hit" is a monophthong , the vowel sound in "boy" is in most dialects a diphthong , and
Types of assessment questions. These types of assessment are effective and efficient methods for measuring students knowledge and are a common way of assessing students in the classroom. Supply response students must supply an answer to a question prompt. Criterion-referenced tests are designed to measure student performance against a fixed set of predetermined criteria or learning standards. Types of assessment Formative assessments are informal and formal tests given by teachers during the learning process. These specific assessment modifies the activities done in the classroom, so that there is more student achievement. It identifies strengths and weakness and target areas that needs work. Summative