State and model the objective
Tell the children that they will draw with chalk, go for a walk, and hear and say words that rhyme with chalk, such as rock, walk, clock, lock, sock,  and sidewalk. 

Practice the skill within an activity

Chalk walk 

• If you don't have a sidewalk available, before the activity, draw a sidewalk-like path on your paved outdoor area, marking the sidewalk dividing lines so each child will have a space on the "sidewalk" to draw in.
• Give each child a piece of chalk, and have them find a space on the."sidewalk" to draw in.
• Tell the children to listen for you to say words that rhyme with chalk.
  • If the word rhymes with chalk, the children should raise their chalk in the air then join in saying, "Chalk the ___ (name of rhyming word) on the sidewalk," then draw the object that rhymes with chalk on the sidewalk.
  • If the word does not rhyme with chalk then the children keep their chalk in their lap and listen for the next word.
• After the children have drawn several objects that rhyme with chalk,  go on a "chalk walk" to see and practice saying the words that rhyme with chalk that they drew on the sidewalk.
• Ask the children to take turns saying a word they heard in the activity that rhymes with chalk. 

Apply the skill

Practice rhyming 

• Produce words that rhyme with chalk 
  • Remind the children of the words they played with (walk, chalk, sidewalk, clock, lock, sock, rock). 
  • Tell them you can think of other words that rhyme with chalk (talk, mock, dock). 
  • Ask each child to think of a word that rhymes with chalk. 
  • If a child doesn't respond in a few seconds, give him/her an option: 
    • "How about walk? Does walk rhyme with chalk?" (Nod your head yes to let the child know that they rhyme) 
    • "Do rock and chalk rhyme?" (Nod your head yes) 
• Recognize words that do and do not rhyme using pictures (see graphics below) 
  • Lay out two pictures of words that end in -alk or -ock (e.g., chalk, rock) and one picture that does not end in -alk or -ock (e.g., dog). 
  • State all possible word pairs and let the children help you identify the picture that does not rhyme. Remove the picture that does not rhyme with -alk or -ock. 
  • Repeat with other sets of pictures: 
    • Rock, clock, cheese 
    • Lock, sock, girl 
    • Chalk, sidewalk, bird 
    • Clock, sock, cat