4. Ms. Sayre asks her students to count the number of sounds they hear in the word 'tack' as she sounds out the word. Ms. Sayre then draws the following chart on the board and writes the letters that represent the three sounds students identify in each of the boxes. She asks students what they notice about the chart. [Chart shows: t | a | ck] Which of the following best describes the main purpose of the lesson?
Answer: B
The main purpose of the lesson is to help students understand that phonemes can be represented by multiple graphemes.
Ms. Sayre's lesson focuses on identifying and representing the individual sounds, or phonemes, in the word 'tack.' By using a chart that illustrates the sounds with corresponding letters, she is demonstrating how different letters can represent the same sound, which aligns with understanding the relationship between phonemes and graphemes.
A) To teach students how to decode and spell phonetically irregular words
This option is incorrect because the lesson focuses on decoding a regular word ('tack'), which follows standard phonetic rules. Phonetically irregular words do not adhere to typical sound-letter relationships, and this lesson does not address those complexities.
B) To help students understand that phonemes can be represented by multiple graphemes
This option correctly describes the lesson's main purpose. By having students identify the sounds in 'tack' and correlating them with the letters 't', 'a', and 'ck', Ms. Sayre emphasizes how different letters can represent the same phoneme, fostering a deeper understanding of phonetics.
C) To teach students that every syllable in a word needs to contain a vowel sound
While the lesson does involve a vowel sound, it is not the primary focus. The lesson is more concerned with the representation of sounds rather than the necessity of vowels in every syllable, which is a separate phonetic rule.
D) To guide students to practice blending the phonemes in easily decodable words
This option is partially relevant but not the main purpose of the lesson. Although students may practice blending sounds, the focus is more on identifying the distinct phonemes and their grapheme representations rather than the blending process itself.
Conclusion
The correct answer is B, as it accurately captures the essence of the lesson: helping students recognize how phonemes can be represented by different graphemes. Other options fail to address this specific focus, either misinterpreting the lesson's intent or highlighting aspects that are not central to the activity.