Lesson plan

Changing Up The Y

What happens when you make the plural form of nouns that end with “y?” It depends. Help students learn the two rules for these plural nouns in this engaging lesson.
GradeSubjectView aligned standards

Students will be able to make the plural forms of nouns that end with “y.”

(5 minutes)
  • Show students a book. Ask, “What’s the word for more than one book?”
  • Write the word “books” on the board. Say, “When there is more than one of a noun we call it a plural noun. For most nouns you can form the plural by adding an -s.”
(5 minutes)
  • Write the word “baby” on the board. Say, “There are some nouns that have irregular plural forms. Some of these are nouns that end with ‘y.’”
  • There are two rules for making the plural form of nouns that end with y:
    1. If a vowel comes before the Y, add an S.
    2. If a consonant comes before the Y, you drop the Y and add an "ies."
  • In the word “baby,” the letter before the y is “b,” a consonant. That means to make the plural form you drop the y and add “ies.”
  • Show how to form the word “babies” by writing it on the board.
(10 minutes)
  • Hand out index cards to each student. Write the following nouns on the board, one at a time: Monkey, daisy, story, and key.
  • After you write each word, have the students write the plural form on their index cards. Ask them to hold up their card after writing each word.
(15 minutes)
  • Pass out the Plural Nouns: Changing Up the Y worksheets. Have students work independently to complete the worksheet.
  • Enrichment:Have students write sentences featuring the plural forms of nouns ending with “y.”

  • Support:Highlight the letters before the “y” to make it clear whether they are consonants or vowels.
(5 minutes)
  • Assess students’ understanding by observing how they are making plural nouns. Are they following the two rules for nouns that end with “y?” Pay special attention to how they complete the worksheet.
(5 minutes)

Have students come up to the board to write some of the answers they came up with on their worksheet.

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