Lecciones de matematica

Grades

Minilessons for Math Practice

3–5

Rusty Bresser and Caren Holtzman

Minilessons for Math Practice
GRADES 3–5

Minilessons for Math Practice
GRADES 3–5 Rusty Bresser Caren Holtzman

• •

Math Solutions Publications
Sausalito, CA

Math Solutions Publications A division of Marilyn Burns Education Associates 150 Gate 5 Road, Suite 101 Sausalito, CA 94965www.mathsolutions.com Copyright © 2006 by Math Solutions Publications All rights reserved. Limited reproduction permission: The publisher grants permission to individual teachers who have purchased this book to reproduce the Blackline Masters as needed for use with their own students. Reproduction for an entire school district, or commercial or any other use, in any form or by any means, is prohibited withoutwritten permission from the publisher, except for the inclusion of brief quotations in a review. Library of Congress Cataloging-in-Publication Data Bresser, Rusty. Minilessons for math practice : grades 3–5 / Rusty Bresser, Caren Holtzman. p. cm. Includes bibliographical references and index. ISBN-13: 978-0-941355-75-9 (alk. paper) ISBN-10: 0-941355-75-6 1. Mathematics—Problems, exercises,etc.—Juvenile literature. 2. Mathematics—Study and teaching (Elementary)—Juvenile literature. 3. Problem solving—Study and teaching (Elementary)—Juvenile literature. I. Holtzman, Caren, II. Title. QA43.B729 2006 372.7—dc22 2006017050

Editor: Toby Gordon Production: Melissa L. Inglis Cover design: Jan Streitburger Interior design: Catherine Hawkes/Cat & Mouse Composition: Interactive CompositionCorporation Printed in the United States of America on acid-free paper 10 09 08 07 06 ML 1 2 3 4 5

A Message from Marilyn Burns
We at Math Solutions Professional Development believe that teaching math well calls for increasing our understanding of the math we teach, seeking deeper insights into how children learn mathematics, and refining our lessons to best promote students’ learning. Math SolutionsPublications shares classroom-tested lessons and teaching expertise from our faculty of Math Solutions Inservice instructors as well as from other respected math educators. Our publications are part of the nationwide effort we’ve made since 1984 that now includes • more than five hundred face-to-face inservice programs each year for teachers and administrators in districts across the country; •annually publishing professional development books, now totaling more than fifty titles and spanning the teaching of all math topics in kindergarten through grade 8; • four series of videotapes for teachers, plus a videotape for parents, that show math lessons taught in actual classrooms; • on-site visits to schools to help refine teaching strategies and assess student learning; and • free onlinesupport, including grade-level lessons, book reviews, inservice information, and district feedback, all in our quarterly Math Solutions Online Newsletter. For information about all of the products and services we have available, please visit our Web site at www.mathsolutions.com. You can also contact us to discuss math professional development needs by calling (800) 868-9092 or by sending an e-mail toinfo@mathsolutions.com. We’re always eager for your feedback and interested in learning about your particular needs. We look forward to hearing from you.

Math Solutions
P U B L I C AT I O N S

®

Contents

Acknowledgments ix Introduction xi Contents Chart xv 1. Number Talks 1 2. Ballpark Estimation 7 3. Clear the Board 13 4. Coin Riddle 18 5. Comparing Fractions 24 6. CoordinateTic-Tac-Toe 30 7. Digit Place 35 8. Dot Clusters 41 9. Estimate and Measure 48 10. Estimation Jar 53 11. Function Machine 57 12. Guess My Number 64 13. Guess My Rule 69 14. How Far Away? 75 15. Looking at Data 81 16. Number Strings 87 17. Odd Number Wins 92 18. Over or Under 97 19. Personal Numbers 102 20. Race for Twenty 107 21. Target 100/Target 0 111
vii

viii

Minilessons for Math Practice...