A Birdbath

Leah counts the birds that come to her birdbath. In the morning, Leah counts six birds that come to her birdbath. In the afternoon, Leah counts fourteen birds that come to her birdbath. Leah says nineteen birds came to the birdbath. Is Leah correct? Show all your mathematical thinking.

Instructional

More Accessible Version

Leah counts the birds that come to her birdbath. In the morning, Leah counts five birds that come to her birdbath. In the afternoon, Leah counts three birds that come to her birdbath. Leah says nine birds came to the birdbath. Is Leah correct? Show all your mathematical thinking.

More Challenging Version

Leah counts the birds that come to her birdbath. In the morning, Leah counts sixteen birds that come to her birdbath. In the afternoon, Leah counts fourteen birds that come to her birdbath. Leah says twenty-nine birds came to the birdbath. Is Leah correct? Show all your mathematical thinking.

Plan

Underlying Mathematical Concepts

Possible Problem-Solving Strategies

Formal Mathematical Language and Symbolic Notation

A student may independently select a printed number line, number chart, ten frames, graph paper, etc. as they work on a task.

Possible Solutions

Solutions tabs

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