# Trading Tens: From Regrouping to Reasoning | Year 2 to 4 | Bounded Differentiated Problem **Price:** $9.95 AUD **Seller:** TeachBuySell Seller **Year Levels:** year2, year3, year4 **Subjects:** mathematics ## Description (seller-submitted) Trading Tens, Building Understanding Years 2 to 4 | From Regrouping to Reasoning Looking for a mathematics task that develops conceptual understanding, reveals student thinking, and supports differentiation? Trading Tens, Building Understanding helps teachers develop place value understanding, regrouping, and reasoning through a sequence of worthwhile mathematical experiences. This resource uses MAB blocks to explore trading, equivalence, regrouping, subtraction, and missing number reasoning across Years 2 to 4. Trading Tens, Building Understanding is a hands-on bounded differentiated problem that invites students to represent numbers in different ways, trade tens and ones, and solve increasingly complex problems. A bounded differentiated problem is a worthwhile mathematical experience with intentional supports, constraints, and extensions that reveal student thinking. Rather than creating multiple tasks for different learners, all students engage with the same rich mathematical problem while accessing it at an appropriate level of challenge. Using MAB blocks as a concrete representation, learners explore how numbers can be regrouped while maintaining the same value. As the learning progresses, students move beyond trading and regrouping to identify patterns, justify solutions, and reason about the relationship between quantities. This resource serves as an effective bridge into subtraction units by developing the conceptual understanding of trading and equivalence that underpins regrouping. Rather than providing a worksheet with one correct method, this resource creates opportunities for students to think mathematically, communicate their ideas, and develop conceptual understanding through purposeful problem-solving. The built-in supports, constraints, and extensions allow learners to access the same worthwhile mathematical experience at different levels while making their thinking visible for assessment and responsive teaching. This resource includes: ✔ Editable P… [truncated] --- View on TeachBuySell: https://teachbuysell.com.au/l/6a51e8ac-4941-43ad-b006-728299473355 Marketplace: https://teachbuysell.com.au