Objective: Use the place value chart to record and name tens and ones within a two-digit number.
In Lesson 2, students represent and decompose two-digit numbers as tens and ones, and record their findings on a place value chart, supported by the familiar Hide Zero cards. Up to this point, students have worked with representations of ten where 10 ones are clearly visible (e.g., as two 5-groups). While the digit 3 in 34 may appear smaller than the digit 4, its value is determined by its position. Use of the place value chart represents the students’ first experience with this additional layer of abstraction.
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