Push your lips out into a tight little circle, like blowing out a candle, then open them into the next sound — w.
Check yourself: Mirror: lips round and forward. If your teeth touch your lip you are saying /v/ instead.
Watch for: /v/ — especially for Urdu speakers, where /v/ and /w/ are one sound.
◆ marks a word that does NOT follow today's pattern — Blumenfeld boxes these on the page. Teach it by heart; do not let the class sound it out and lose faith in the rule.
Say the word, have them repeat it, count the sounds on fingers, THEN write. The count is what stops a child writing the first letter and guessing the rest.