Rounding+and+Estimating

__**September 7-10**__
 * 3.5A - round whole numbers to the nearest ten or hundred**
 * 3.5B - use strategies including rounding to estimate solutions to addition and subtraction problems**
 * 3.14B - use a problem solving model that incorporates understanding the problem, making a plan, carrying out the plan, and evaluating the solution**


 * Tuesday - round whole numbers to the nearest ten and hundred**
 * Ask students to think of things that are round. List
 * Now name which numbers on a number line would be round? (#s that end in zero)
 * each student makes a number line from 0 to 140 by cutting out each strip and overlapping the same way(you might have to help) and tape them together
 * have students highlight or color the same color all of the numbers that end in zero on their number lines
 * practice calling out numbers for the students to round to tens or hundreds (make sure you emphasize that if a number falls in the middle, 25, to round up.
 * Play the "EASY" game - see handout
 * page 14 - rounding to the nearest hundred can be used for hw
 * Wednesday - round numbers to tens or hundreds and problem solving**
 * Share the book __coyotes all around__ by Murphy - (we will have to share this unless I can get more from another library) Students need to have their number lines out while you read
 * discuss how clever coyote uses the number line to round each number. Why is it easier to add numbers after they have been rounded?
 * Review the four step problem solving process with students: understand the problem, make a plan, carry out the plan, and evaluate the problem for reasonableness
 * Worksheet: Lets practice Rounding. Use the 4 step plan to work problem #1. Use the number lines to help students round each number
 * Complete the rest of the worksheet
 * Questions 2-5 can be used for homework or as you wish


 * Thursday - use rounding to estimate solutions to addition and subtraction problems and problem solving**
 * Use the make it easy worksheet. You can jigsaw the problems and have small groups do each problem then come share to the class how their group solved the problem
 * Read __Moiras Birthday__ by Munsch. CGI problem: If you invite all the grades form chandler oaks elementray school, about how many students will come to your party? (I will get this question made with the exact numbers)
 * Star chart worksheet - use as hw or as you wish


 * Friday - round numbers to the nearest ten or hundred**
 * Teach an alternate way to round numbers: discuss with students if theyve ever ridden a roller coaster
 * display on baord a curvy line like the strips I gave you. starting with zero label each trough by 10's
 * push students to realize what numbers come at the tops of the hills. (5, 15, 25, 35, etc.) label on your strip
 * Give each student a sticky note and have them write a number (that can be rounded on your strip) and then have each student come up and show where that numnber would round to by placing their sticky note on the roller coaster strip
 * Teach the rap "zero, one, two, three, four...hit the floor, five, six, seven, eight, nine...climb the vine (do actions to it)
 * Give each student the rounding rollercoaster picture as a guide. Give each student their own roller coaster strip to use when rounding numbers
 * Use round about worksheet as a practice for the roller coaster rounding
 * Use the rest of the time for reteach/review