Draw the sequence of a sentence ?

Hi~ In the following paragraph, I don't understand the meaning of the phrase underlined.

I can't picture the situation. If you can guess the situation and the meaning, please let me know.

Thank you~

When students seek to apply what they have learned, make sure that the principles and applications allow for them to manipulate it in more ways than just verbal or written. For example, when applying what they have learned about sentence structure, give students cards that have parts of speech on them. Then let the students move the cards around trying out different combinations. Have students tap out the rhythm of a sentence structure. Allow them to draw the sequence of a sentence, watch videos on sentence composition, hear
how others compose sentences, and play different games with sentences. The goal is for them to manipulate what they have learned until they reach a level of familiarity and comfort.