The explorations in this book include such tasks as supplying missing numbers in story problems, using clues to identify locations on a map and placing shapes inside or outside a circle according to a rule. Students apply mathematical ideas from the five main content areas-number, algebra, geometry, measurement and data analysis. As they work, they infer, generalise, reason by analogy, recognise relationships and make representations and they also guess, check and revise and verify their results. The supplemental CD-ROM features interactive electronic activities, master copies of activity pages for students and additional readings for teachers.

The explorations in this book include such tasks as determining the coins in piggy banks, matching two-dimensional shapes with three-dimensional solids and organising data about hats in tree diagrams. Students apply mathematical ideas from the five main content areas-number, algebra, geometry, measurement and data analysis. As they work, they infer, generalise, reason by analogy, recognise relationships and make representations and they also guess, check and revise and verify their results. The supplemental CD-ROM features interactive electronic activities, master copies of activity pages for students and additional readings for teachers.

The investigations for prekindergarten and kindergarten contained in this book engage students in such activities as creating story problems about teddy bears, examining patterns of fire trucks and firefighters' hats and making glyphs to represent data about children in the class. Students apply mathematical ideas from the five main content areas-number, algebra, geometry, measurement and data analysis. As they work, they infer, generalise, reason by analogy, recognise relationships and make representations and they also guess, check and revise and verify their results. The supplemental CD-ROM features interactive electronic activities, master copies of activity pages for students and additional readings for teachers.

Children in prekindergarten focus on counting and gradually master the essential one-to-one matching of an object to a number. By the end of second grade, they can represent one, two and three digit numbers, understand simple fractions and apply a variety of facts and strategies to add and subtract skillfully. Investigations in this book support this progression by inviting students to count and order ducklings in a line, compute the total cost of several items on a menu and play a variety of games that reinforce their understanding of number, addition and subtraction. Problems in story form develop students' listening skills and immerse them in real-world mathematics. The supplemental CD-ROM features interactive electronic activities, master copies of activity pages for students and additional readings for teachers.

The important ideas of algebra, including patterns, variables, equations and functions, are the focus of this book. Student activities that introduce and promote familiarity with these ideas include constructing growing patterns using isosceles triangles, analysing situations with constant or varying rates of change and observing and representing various patterns in an array. The supplemental CD-ROM features interactive electronic activities, master copies of activity pages for students and additional readings for teachers.

This book introduces young children to the basic ideas of comparing and ordering lengths, weights, time and capacities. Engaging hands-on activities develop these ideas, along with the concept of units of measure and the use of measurement tools. The investigations follow children's natural progression from using many copies of a unit to iterating the unit to using a tool that iterates the unit. The supplemental CD-ROM features interactive electronic activities, master copies of activity pages for students and additional readings for teachers.

This book demonstrates how some fundamental ideas about data analysis and probability can be introduced to build a strong foundation in young students. Activities designed to introduce and promote familiarity with essential concepts develop and extend students' ideas about data analysis and simple probability through the use of bar graphs, tallies, frequency tables and Venn diagrams. Helpful margin notes provide teaching tips, anticipated student responses to questions, samples of students' work and ways to modify the activities for students experiencing difficulty or needing enrichment. The supplemental CD-ROM features interactive electronic activities, master copies of activity pages for students and additional readings for teachers.