Archives: Case Stories

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case-eac

EAC 1 Case Story

EAC 1 – Specifically connecting to more than one representation of an idea.

Routines

  • Connect symbolic and visual representations
  • Create visual representations of word problems

Video Case Story

See how one middle grades mathematics teacher uses tasks about area of rectangles with fractional measurements to implement EAC 1 in her classroom.

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Student Tasks
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case-eac

EAC 2 Case Story

Noting ways that different solution strategies are similar or different.

Routines

  • Discuss different solution strategies for the same problem
  • Discuss different problems solved by the same strategy

Video Case Story

See how one middle grades mathematics teacher uses a task about equivalent algebraic expressions to implement EAC 2 in her classroom.

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Case Story Resources

Student Task
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case-eac

EAC 3 Case Story

Discussing the mathematical reasoning that underlies a procedure.

Routines

  • Connect a representation to the steps in a procedure
  • Provide a mathematical justification for the steps in a procedure

Video Case Story

See how one middle grades mathematics teacher uses a card sorting task about multiplying and dividing fractions to implement EAC 2 in her classroom.

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Case Story Resources

Student Task
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case-eac

EAC 4 Case Story

Pointing to a main idea in a lesson and how it fits into a bigger picture.

Routines

  • Explore how the main idea of a lesson is used in other contexts
  • Connect the current main idea of a lesson to a prior math concept

Video Case Story

See how one middle grades mathematics teacher uses tasks about area of rectangles with fractional measurements to implement EAC 1 in her classroom.

Watch EAC 4 Case Story

Case Story Resources

Student Tasks
Categories
case-sos

SOS 1 Case Story

Assigning contextualized problems with multiple solution strategies.

Routines

  • Students generate questions to investigate within a context
  • Students work to solve an open task with minimal teacher intervention

Video Case Story

See how one middle grades mathematics teacher uses a task about sharing chocolate to implement SOS 1 in his classroom.

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Case Story Resources

Student Task
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case-sos

SOS 2 Case Story

Asking students for extended responses (e.g. explanations, analyses).

Routines

  • Each student explains their thinking out loud
  • Students analyze and explain a given solution to a math problem

Video Case Story

See how one middle grades mathematics teacher uses a task about filling jugs to implement SOS 2 in his classroom.

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Case Story Resources

Student Task
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case-sos

SOS 3 Case Story

Asking students to look for patterns and make conjectures.

Routines

  • Students name what is changing and staying the same in a context
  • Students interact with examples / data to generate & test conjectures

Video Case Story

See how one middle grades mathematics teacher uses tasks about figural patterns to implement SOS 3 in her classroom.

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Case Story Resources

Student Task
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case-sos

SOS 4 Case Story

Promoting discourse around emerging ideas / points of confusion.

Routines

  • Students discuss a solution with errors and / or struggles
  • Students share ideas with peers prior to completing a problem

Video Case Story

See how one middle grades mathematics teacher uses a task about points scored by sports teams to implement SOS 4 in her classroom.

Watch SOS 4 Case Story

Case Story Resources

Student Task