Blend two consonants at the start of a word (st, sl, sp), hearing both sounds rather than one new sound.
A blend is different from a team like sh. In a blend, you hear BOTH letter sounds, just said fast together. St is s and t blended, like in "stop."
Try sl in "slide" and sp in "spin." Say each letter sound slowly first, then squeeze them closer together until they blend into one smooth start.
Mastery looks like: They blend st, sl, and sp smoothly at the start of a word without dropping either sound.
Common stumbles: Dropping the first consonant of the blend and reading only the second sound, like "top" for "stop."
See it visually
Interactive, spoken-aloud tools that show this idea in motion.