Place Value: Rounding to the Nearest 10’s and 100’s Places
3rd Grade• Half Day Lesson Plan
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Subject: Math, Numbers and Operations in Base Ten
Skills: Place Value, Multi-digit Whole Numbers, Rounding to Nearest 10's Place, Rounding to Nearest 100's Place
File Type: PDF Document
Materials Needed: blank paper (3 pieces per student), pencils, crayons, deck of playing cards -or- number cards -or- index cards (30-40 per group to create their own number cards), document camera/whiteboard
Printable Resources: Optional: printable "Exit Slips" as an assessment component (1 copy per student); Optional: printable student game directions (1 copy per group)
Lesson Plan Description
This half day of lesson plans is broken down into 3 separate segments (30-60 minutes each) addressing Numbers and Operations in Base Ten: place value rounding to the nearest tens place or hundreds place. Students will learn key place value vocabulary, take helpful notes for reference, round three-digit numbers using both a rounding rule and a vertical number line. They will also complete independent practice of concepts and play a game to reinforce the concept of rounding and play a rounding game.
Segment 1: students will use place value understanding to round whole numbers to the nearest 10’s place on a vertical number line.
Segment 2: students will use place value understanding to round whole numbers to the nearest 100’s place on a vertical number line.
Segment 3: students will demonstrate their understanding of rounding while playing a card game in pairs or small groups.
These lessons can be taught over the span of a half day or you can use the lessons independently, broken up over several days.