Shark Swimathon: Subtracting Two Digit Numbers (MathStart 3 Series)

Overview

Shark Swimathon

The Ocean City Sharks have to swim 75 laps by the end of the week, and every day they figure out how many laps are left to go. Swimming and subtraction are all part of the fun!

As members of a swim team do laps to qualify for swim camp, readers can practice subtracting two-digit numbers to see how many laps are left to go.

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Overview

Shark Swimathon

The Ocean City Sharks have to swim 75 laps by the end of the week, and every day they figure out how many laps are left to go. Swimming and subtraction are all part of the fun!

As members of a swim team do laps to qualify for swim camp, readers can practice subtracting two-digit numbers to see how many laps are left to go.

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Editorial Reviews

Children's Literature
Shark Swimathon is a picture book that features a group of young sharks engaged in a contest in order to attend a large swim meet. The team has to swim 75 laps in four days. Each day the coach counts the number of laps each shark swims, adds them together and subtracts the total from the previous day's total. The story revolves around how many laps are left after each day of practice. The sharks learn they have to work together in order to swim all their laps, and they learn how to do double-digit subtraction. The book includes examples of other ways to do subtraction and games that adults and children can play together. The premise of the book and the artwork are very good, including illustrations of the coach subtracting each day's laps from the total. While it is unusual to see a picture book featuring sharks, the story and examples are solid. 2001, HarperCollins, $15.95. Ages 6 to 8. Reviewer: Danielle Williams
School Library Journal
Gr 1-3-The Ocean City Sharks swim team needs money to attend swim camp. Fortunately, a local bank has promised to send them if the sharks can swim a total of 75 laps by the end of the week. Each day, Coach Blue subtracts the number of laps completed from the total, providing examples of two-digit subtraction. Bright cartoons show a group of enthusiastic sharks carrying book bags and wearing colorful bathing suits. The coach writes the math problems out on a big sign and discusses each new subtraction, allowing readers to follow along and cheer the team on. Regrouping is included, but the concept of changing tens into ones is not fully explained. Still, this entertaining story would work well as a supplement to lessons on two-digit subtraction.-Melinda Piehler, North Tonawanda Public Library, NY Copyright 2001 Cahners Business Information.
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Product Details

  • ISBN-13: 9780064467353
  • Publisher: HarperCollins Publishers
  • Publication date: 12/28/2000
  • Series: MathStart 3 Series
  • Edition description: 1 ED
  • Pages: 40
  • Sales rank: 246,803
  • Age range: 6 - 10 Years
  • Lexile: 380L (what's this?)
  • Product dimensions: 8.00 (w) x 10.00 (h) x 0.00 (d)

Meet the Author

Stuart J. Murphy is a visual learning specialist. A graduate of the Rhode Island School of Design, he has a strong background in design and art direction. He also has extensive experience in the world of educational publishing. Drawing on all these talents, Stuart J. Murphy brings a unique perspective to the MathStart series. In MathStart books, pictures do more than tell stories; they teach math.

Stuart J. Murphy and his wife, Nancy, live in Boston.

Lynne Cravath is the illustrator of many popular books for young readers, including the MathStart® books Shark Swimathon, the Penny Pot, and Spunky Monkeys on Parade, all by Stuart J. Murphy. Ms. Cravath lives in Phoenix, Arizona.

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