The lesson explicitly teaches vowels (notes there are consonants and vowels and practices the short a sound) and has students isolate and pronounce medial vowel sounds in CVC words. Students practice sounding out words, blending and segmenting phonemes (e.g., saying /s/ /a/ /t/ to read "sat") and are asked to say words slowly to hear all the sounds. The skills list also includes "segment spoken single-syllable words into their complete sequence of individual sounds," which shows attention to vowel sounds within single-syllable words.

Students are taught that a syllable is a unit of spoken language that has one vowel sound, and this definition is presented for them to use. Students manipulate lowercase letter cards to change closed words (e.g., hen) into open words (e.g., he) and read the result, noting that the vowel in open syllables "says its name." Students write and read single-syllable open-syllable words (he, we, so, go, hi, she) and are asked to notice whether words end with a vowel or a consonant.

Activity 1.3 explicitly asks students which sight word has an open syllable (by), prompting attention to syllable type. Several tasks ask students to say words slowly to hear sounds (Writing Words, word building, and dictation activities), and the skills list includes isolating and pronouncing medial vowel sounds. Students sort and read multisyllabic and single-syllable words with attention to vowel sounds in the context of blends.

The lesson defines a syllable as "a word or word part that has one vowel sound" and gives examples ("pan" vs. "pancake"). In Activity 2.1 students read words in two columns, clap the "beat" for each word, and are told that left-column words have one syllable, linking the clap (vowel sound) to syllable count. The FLOSS decision questions include "Does the word have only one syllable?" and students answer yes/no for spoken/printed words to decide spelling, applying the vowel-sound notion to determine syllable number.

In Activity 1.1 students reread the Weekly Message and then clap the syllables in target words while the teacher reminds them that "a syllable is a one-beat (or clap) word or part of a word that includes only one vowel sound." The activity lists words with syllable counts (long 1, spell 1, going 2, learn 1, endings 2, something 2) and instructs the teacher to model clapping the syllables and have the student clap along. Students also point to and read printed words from the message as they perform the syllable clapping.

Students are asked to clap the syllables in multisyllabic words in Activity 1.1 (week, together, sounds, hear, beginning, many), and they are encouraged to point to and read words in the Weekly Message. The skills list includes 'Segment spoken single-syllable words into their complete sequence of individual sounds' and 'Isolate and pronounce the initial, medial vowel, and final sounds in three letter (CVC) words,' which supports oral phonological work with vowel sounds.

In Activity 1.1, students are asked to highlight words in the Weekly Message that have more than one syllable and to clap the syllables in those words (going, continue, working, ending, lesson, about, several). The activity explicitly prompts students to attend to spoken syllables and includes the note that 'learned' looks like two syllables in print but is spoken as one, directing students to rely on pronunciation when judging syllable count.

Students are asked to identify an open syllable in Activity 2.3 (Which word has an open syllable? (fly)), and the Skills and Review lists explicitly include "Open syllables" and multiple vowel-focused items. In Activity 3.1 students choose a vowel as a center of the table and build words around that vowel, which has them attend to vowels when constructing printed words. Several activities also have students say words aloud (e.g., A and An, word building, and dictation) so they hear vowel sounds in words.

In Activity 1.1 students are asked to point to four two-syllable words in the printed Weekly Message ("reading," "across," "figure," "letters") and the teacher is to help the child clap the syllables to find them. The activity directs adults to read several words (both one- and two-syllables) and help the child clap the syllables, linking spoken syllable segmentation with printed words. The skills list also includes practicing segmentation of spoken words and recognizing vowel sounds, which supports syllable work.

In Activity 1.3 the teacher asks, "How many syllables does 'number' have?" and directs the child to clap the syllables, giving a direct instance of students counting syllables in a printed word. Day 5's optional Compound Fun has students break compound words (for example, rain + bow) apart and blend them back together to practice decoding two-syllable words. The wrap-up and some activities ask students to identify and read multi-part words (e.g., "number," compound words) which provides opportunities to practice recognizing word parts and syllable grouping.