think! Mathematics Student Textbook 1B (Sold in Packs of 10)

Build essential mathematical foundations through engaging, systematic learning that develops number sense, measurement skills, and time concepts in this comprehensive first-grade textbook. Innovative Unit StructureEach unit follows our proven learning sequence:• Unit Opener - Connects to familiar experiences• Recall - Activates prior knowledge• Anchor Task - Explores hands-on learning• Our Friends' Ideas - Shares different approaches• Activity Time - Provides guided practice• Guided Practice - Builds confidence• Mind Workout - Encourages thinking• Math Journal - Records learning journey Core Concepts Covered: Numbers and Operations• Counting and writing numbers to 120• Understanding tens and ones• Adding with regrouping• Subtracting with regrouping• Building number relationships• Solving word problems Measurement and Data• Comparing lengths and heights• Measuring with standard units• Estimating distances• Using everyday measurement tools• Solving measurement problems• Recording measure