Fred is a frog and he can only sound talk.
Fred can only say the sounds in a word, which he whispers to the adult, and needs the children's help to say the word! For example, Fred will say the sounds p-o-t, and children will say the word pot. This is Fred talk: sounding out the word. The children then blend the sounds to say the actual word.
As a whole class, the children are beginning to blend a sound talked word (that Fred has given them) through adult encouragement and repetition. With time, all children will be able to blend the word independently.