Material Detail

Thank You Notes: A Children's Story about Exponential Growth begins with questions about ways people are helping one another in their families, neighborhoods, and communities. A child, Jasmine, decides to write a thank you note and the next day asks a friend to write one too. Each day, each note writer asks a sibling or a friend to write one. Exponential growth occurs because the number of thank you notes written each day doubles. Intended for use in grades 3-5, this book uses upper elementary students’ skills in multiplying by 2, adding multi-digit numbers, and creating bar graphs. The story integrates mathematics, literacy, social studies, science, and the visual arts as well as addressing many aspects of the US national standards in these curricular areas. The book provides an emotionally positive example of exponential growth as a way to develop conceptual and mathematical understandings of this phenomenon. Also included is an example of the impact of limited resources. 

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