Lesson Plan:

Add a Prefix!

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September 26, 2015
by Sanayya Sohail

Learning Objectives

Students will learn the meanings of various prefixes.


Introduction (5 minutes)

  • Tell your students that they will learn about prefixes today.
  • Ask your students if they know what a prefix is.

Explicit Instruction/Teacher Modeling (10 minutes)

  • Tell your students that a prefix is a word that is added to the beginning of a word and changes the meaning of the word.
  • Explain that some examples of prefixes are re, dis, mis, un and pre.
  • Tell them that "re" means again. An example of a word that contains this prefix is "retry."
  • Tell them that "dis" and "un" mean not. Examples of words that contain these prefixes are "disorganized" and "undo."
  • Tell your students that "mis" means wrong. An example of a word that contains this prefix is "misunderstood."
  • Tell your students that "pre" means before. An example of a word that contains this prefix is "pretest."
  • Write the meaning and examples of the prefixes on the board.

Guided Practice/Interactive Modeling (20 minutes)

  • Pick a student and ask him to think of a word that has a prefix.
  • Have the student come up and act out the word.
  • Ask the rest of the class to guess the word and identify the prefix.
  • Repeat the activity with the rest of the class.
  • Write the words that the students act out on the board.
  • Tell your students that they cannot act out a word that has already been done.

Independent Working Time (30 minutes)

  • Tell your students to each write ten sentences that contain a word that could be changed to a word with a prefix.
  • An example could be, “I took a test yesterday." The sentence could be changed to, "I took a pretest yesterday."
  • Tell your students to use each prefix at least once.



  • Enrichment: Ask advanced students to write stories that contain at least ten prefixes.
  • Support: Ask struggling students to read a short storybook, then identify and write down all the prefixes in it.


Assessment (10 minutes)

  • Ask your students to identify and circle the prefixes on the Can You Find the Words with Prefixes? worksheet.

Review and Closing (10 minutes)

  • Divide your students into five groups.
  • Assign each group a prefix and have them write as many words as they can that start with that prefix.

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