Understanding Place Value and Regrouping

Northern·

Math

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SubjectMath

Original Prompt

i need two, 15-minute mtss tier 3 math lessons built around 1.NBT.B.2: Understand that the two digits of a two-digit number represent amounts of tens and ones. Students should know that “10 tens” is 100, and “12 ones” can be regrouped into 1 ten and 2 ones. 1.NBT.C.4: Add within 100, including adding a two-digit number and a one-digit number, by composing a ten. This standard directly connects to regrouping ones into a new ten.

This document focuses on teaching students the concept of place value, specifically the identification and use of tens and ones. It starts with a warm-up involving counting blocks to grasp the fundamentals of tens and ones. The teacher models an example using the number 37, breaking it down into 3 tens and 7 ones. Guided practice follows, where students identify the tens and ones in given numbers like 52, 39, and 61. The document then introduces regrouping, explaining how 10 or more ones can be traded for a new ten. Through various practice exercises, students learn to regroup and add numbers while understanding the significance of tens and ones. The learning journey culminates in exercises for mastery and an exit ticket that reinforces their knowledge of adding and regrouping.