# ALEX Lesson Plan

## Roll 'N Round to Win

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This lesson provided by:
 Author: Susan Jordan System: Mobile County School: Mobile County Board Of Education The event this resource created for: CCRS
General Lesson Information
 Lesson Plan ID: 33010 Title: Roll 'N Round to Win Overview/Annotation: This lesson is a hands-on, game-based lesson. It should be part of a larger unit of study on number sense, estimation, and/or place value. The lesson involves students in a game-based activity which gives them a concrete understanding of the relationship between number values, place value, and the accepted mathematical rule for rounding numbers.This is a College- and Career-Ready Standards showcase lesson plan.
Associated Standards and Objectives
Content Standard(s):

Local/National Standards:

Primary Learning Objective(s):

Students will be able to:

• Round 2- and 3–digit numbers to the nearest power of 10.
• Add ten 2- and 3-digit numbers to determine the greatest sum.
• Understand the value and the place values of a number determines to which power of 10 it should be rounded.
• Identify situations in which rounding estimation can be used.
• Determine when rounding estimation is acceptable or when an exact amount is needed.
• Understand what a nice number is. (A nice number is a number that is a multiple of 10.)

Student Essential Question: How do I decide what ‘ten’ or ‘hundred’ number is the closest for rounding and estimation?

1. Determine which two whole number powers of 10 a number falls between.
2. Determine the lowest and greatest possible number that a nice number has been rounded from. (A number was rounded to 60. What is the least possible number it could have been?)
3. Fluently add and subtract within 1,000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Preparation Information
 Total Duration: 31 to 60 Minutes Materials and Resources: Teacher:Interactive whiteboard lesson (If interactive whiteboard is not available, use attached teacher pages for overhead, dry-erase board, or chart paper.);Virtual Dice webpage prepared;Laptop connected to interactive whiteboard (If teacher does not have a laptop for presenting, content may be written on the dry-erase board or chart paper.); andInteractive white board (IWB) (If no IWB, teacher may use LCD with copies on transparency sheets, DE board or chart paper.).Student:Each student should have:a hundreds chart;Roll ‘N Round Record Sheet;a sheet protector to place the hundreds chart in;a dry-erase marker;something to erase with (if sheet protector and marker are not available, students may use hundreds chart without writing on it); pencil; andexit card.Each pair of students should have:One dodecahedra die 0-9 (number cards 0-9 that can be shuffled can be used if dice are not available). Technology Resources Needed: LCD ProjectorInteractive WhiteboardSMART Lesson (If teacher does not have SMART software, this lesson will not open. Please refer to directions for using overhead projector, dry-erase board, or chart paper.) Background/Preparation: TeacherGo to virtual dice webpage, choose a 10-sided dice, then customize dice. Teachers need to enter the digits 0-9 on the 10 sides.Set up laptop and interactive whiteboard for presentation of lesson.StudentShould be familiar with a hundreds chart.
Procedures/Activities: