Lesson plan

One Fish, Two Fish

This wacky lesson combines maths and reading practise with a Dr. Seuss classic and some fun online games.
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Need extra help for EL students? Try the Addition Problem SolvingPre-lesson.
GradeSubjectView aligned standards
Need extra help for EL students? Try the Addition Problem SolvingPre-lesson.

Students will be able to add within 20.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments
(2 minutes)
  • Tell the class that today, you're going to read One Fish Two Fish Red Fish Blue FishBy Dr. Seuss.
  • Encourage students to read along if they can.
(10 minutes)
  • Read the story to the class.
  • Encourage the students take turn reading parts of the story to practise reading skills.
  • Highlight the themes of addition within the story by modeling adding 1 fish and 2 fish together.
  • Write a number sentence and model how to solve it using addends from the story.
(5 minutes)
  • Ask the students what kinds of fish they know or have seen and to describe them.
  • Write up an addition equation on the board and solve it with student input.
(20 minutes)
  • Ask the students to draw their own fish based on the ones in the book. The wackier and crazier the fish, the better!
  • Have students write up an addition number sentence to go with their fish drawings.
  • Ask students to share their fish creations with the class.
  • Let the students play Terrific Tens Go FishOnce they're done.


  • Students below level can play Terrific Tens Go Fish with your guidance.


  • Students above level can play Terrific Tens Go Fish in small groups.
(10 minutes)
  • Write up maths problems on the board for students to solve either alone or with a partner to assess their understanding of addition.
  • Collect work samples to assess student ability to accurately draw and solve an addition equation.
  • Assess student understanding of addition by having them play Fish Bowl Addition.
(3 minutes)
  • Talk about One Fish Two Fish Red Fish Blue Fish. Ask the students for their opinions on the book.
  • Reflect on the maths games played in the lesson (Terrific Tens Go Fish and Fish Bowl Addition). Ask the students what they liked or didn't like about the games.
  • Share out 1–2 work samples and have the class solve the addition equation.

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