
Number


Enlarge 
One Hundred Hungry Ants Author: Elinor J. Pinczes Illustrator: Bonnie MacKain Publisher: Houghton Mifflin Copyright: 1993 ISBN: 0395631165 Number of Pages: 32 Ohio Standards Alignment: Grades 3–5
With "a hey and a hi dee ho," one hundred hungry ants scurry off to a picnic in search of yummies for their empty tummies. As the 100 ants move in single file formation, the littlest ant suggests that they could get there much faster if they were in more columns with fewer ants per line. The ants agree and form 2 lines of 50 and continue their journey. The littlest ant continues to prod them to go faster by increasing the number of columns. This story will prompt students to think about the various factor pairs for 100 as the ants move faster and faster toward their lunch. At last they make it to the picnic site, only to find the food is all gone! The 99 ants with "growling tummies" go off in pursuit of the littlest ant for using up too much time rearranging them!
Go to: How to Use This Book Highlights and Insights Related ORC Resources Ohio Standards


How to Use This Book

 As the book is read aloud, the teacher could ask students to predict what the littlest ant will suggest next for a new formation. Do the students note a pattern? What suggestion would the students make and why?
 Students could make their own ____ Hungry Ants story and create their own factor pairs for a given number and then read their story to a younger student or class.
 The teacher could ask if there are any number combinations that will not work, and why. What is true of each of the factor pairs? Is there a "best" factor pair to use for the marching columns?
 Teacher question: If we know factor pairs for 100, how could we use that information to find factor pairs for 1,000; for 10,000; etc? What do you notice?
 This book had an audio tape that accompanied it when it was published by Scholastic about 15 years ago. I have used it with middle school students to begin our unit on patterns and reinforce the concept of muliplication as repeated addition.


Highlights and Insights

 This book is very elementary in terms of number sense but can be adapted to the upper elementary grades for reinforcing multiplication and patterning.
 This book can serve as an excellent introduction to factor pairs, prime numbers, and perfect squares.


Related ORC Resources

Resource Type: Lessons Discipline: Mathematics Grades: Grades 3–6 Professional Commentary: The Factor Game engages students in a friendly contest in which winning strategies involve distinguishing between numbers with many factors and numbers with few factors. Students are guided through an analysis of game strategies and introduced to the definitions of prime and composite numbers.... Resource Type: Lessons Discipline: Mathematics Grades: Grades 4–6 Professional Commentary: In the Product Game, students start with factors and multiply to find the product. In The Factor Game, students start with a number and find its factors.... All About Multiplication 2: Exploring Equal Sets Resource Type: Lessons Discipline: Mathematics Grades: Grades 3–4 Professional Commentary: Students listen to the counting story, What Comes in 2's, 3's, & 4's, and then use counters to set up multiple sets of equal size. They fill in a table listing the number of sets, the number of objects in each set, and the total number in all....


Ohio Standards

Number, Number Sense and Operations StandardBenchmarks (34) E. Recognize and classify numbers as prime or composite and list factors. I. Demonstrate fluency in multiplication facts with factors through 10 and corresponding divisions. Grade Level Indicators (3) 13. Demonstrate fluency in multiplication facts through 10 and corresponding division facts.
Grade Level Indicators (4) 4. Identify and represent factors and multiples of whole numbers through 100, and classify numbers as prime or composite. 14. Demonstrate fluency in adding and subtracting whole numbers and in multiplying and dividing whole numbers by 1 and 2digit numbers and multiples of ten. 

