Title of Book: Tyrannosaurus Math
Author: Michelle Markel
Publisher/Year: Scholastic Inc. / 2010
ISBN: 978-0-545-30233-3
Grade Levels for Recommended Use: 4th
TEKS: (4.4) Number, operation, and quantitative reasoning. The student multiplies and divides
to solve meaningful problems involving whole numbers. The student is expected to: (A) model
factors and products using arrays and area models; (B) represent multiplication and division
situations in picture, word, and number form.
Brief Summary: Tyrannosaurs Math is the name of a very mathematical dinosaur. He finds
math in every situation. He uses his math problem solving skills to help his sister out of some
very big trouble.
Materials needed: small dinosaur toys, worksheet, and pencil
Suggested Activity:
The teacher will demonstrate how to construct an array to the class.
The class will be put into small groups of three or four students.
Each group will be given a baggie of small dinosaur manipulatives and an array worksheet.
Students will work together in their group to construct arrays as designated on the worksheet.
After constructing arrays students will solve the multiplication problems on their worksheet.
References: http://www.youtube.com/watch?v=wSXCEXU9JWI for preview of the story.
http://www.superteacherworksheets.com/multiplication.html for array worksheets.
Adapted by: Joan Diaz (2011)
Name
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DINOSAUR ARRAYS
Use your dinosaurs to construct an array of the following multiplication problems,
then solve each multiplication problem. Next to each multiplication problem, draw
a picture of how your array of dinosaurs was lined up.
Example: 3 x 5 = __15___ x x x x x
xxxxx
xxxxx
1. 5 x 2 = ______
2. 3 x 4 = ______
3. 2 x 2 = ______
4. 3 x 2 = ______
5. 7 x 2 = ______
6. 14 x 1 = ______
Draw an array below of a multiplication problem that is not shown above and
solve.