Luna's Yum Yum Dim Sum (Storytelling Math)

by Natasha Yim (Author) Violet Kim (Illustrator)

Reading Level: K − 1st Grade

Celebrate diversity, math, and the power of storytelling!

On Luna's birthday, the whole family goes out for dim sum--but Luna and her brothers can't agree on how to share their pork buns fairly. How can three people divide up five buns? Should some siblings get more than others? Or should they cut the buns into smaller and smaller pieces so everyone gets the same amount? A playful exploration of division and fractions, featuring Chinese American characters and a cultural note.

Storytelling Math celebrates children using math in their daily adventures as they play, build, and discover the world around them. Joyful stories and hands-on activities make it easy for kids and their grown-ups to explore everyday math together. Developed in collaboration with math experts at STEM education nonprofit TERC, under a grant from the Heising-Simons Foundation.

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School Library Journal

PreS-Gr 3--The latest installment of the "Storytelling Math" series, which deepens understanding of math concepts through engaging stories. It is young Luna's birthday, and she and her brothers are taken to a dim sum restaurant as a special treat. Luna, Kai, and Benji use the six pork buns they share to explain the concept of division. After receiving the buns, Luna drops one, causing the siblings to have to rethink dividing them up. Each sibling tries a few different ways to convince the group why they are deserving of a larger amount of food, but in the end, the children find a way to share the food equally while making a new friend. Ma Ma and Ba Ba do not intervene in the argument; they are hands-off and even seem amused by the children's bickering. Kim's soft, gentle, and playful illustrations nudge readers toward not taking the argument too seriously. While skin tone is somewhat varied when representing characters in the restaurant, there is no difference in the representation of their facial features (all have dots for eyes and similar angles for noses). The book's back matter contains useful information about dim sum, the Chinese zodiac, and the mathematical concept of division, as well as four extension activities. VERDICT A good addition to collections that support STEM programming or where this series circulates well already.--Shannon O'Connor, Unami M.S., Chalfont, PA

Copyright 2021 School Library Journal, LLC Used with permission.
Natasha Yim
Natasha Yim nació en Malasia, se crio en Singapur y Hong Kong, y ahora vive en California. Es autora de muchos libros ilustrados, entre ellos Goldy Luck and the Three Pandas, The Rock Maiden y Mulan's New Year. Su plato favorito de dim sum son las tartas de flan.

Natasha Yim was born in Malaysia, grew up in Singapore and Hong Kong, and now lives in California. She is the author of many picture books, including Goldy Luck and the Three Pandas, The Rock Maiden, and Mulan's New Year.

Violet Kim viaja por todo el mundo. Estudió dibujo en Rhode Island School of Design y ahora vive en Taiwán. Ilustró los libros If You're Going to a March, The Little Gray Bunny y Earth Day, Birthday! Cuando viaja, siempre busca restaurantes en donde pueda disfrutar de su plato favorito de dim sum: los camarones a la gabardina.

World traveler Violet Kim studied illustration at Rhode Island School of Design and now lives in Taiwan. She is the illustrator of If You're Going to a March, The Little Gray Bunny, and Earth Day, Birthday!
Lexile Measure
Guided Reading Level
Charlesbridge Publishing
Publication date
December 20, 2020
Storytelling Math

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