Objective • By the end of this lesson, you will be able to read and write whole numbers to the hundred thousandths. • Standard 4NS1.1 – Students will read and write whole numbers in the millions.
We are going to play a game called “Eliminator”. You are going to draw 6 small lines on your whiteboards. I am going to roll a die, and after each time you are going to place that number on one of the lines. The goal is to create the largest 6-digit number that you can. Also, draw a box under your lines. This box allows you to place one of the numbers you do not like in it one time. Introduce
Teach • 184,800 • How many hundred thousands are there? • How many ten thousands are there? • How many thousands are there? • How many hundreds are there? • How many tens are there? • How many ones are there? • What is the value of each digit in this number?
Understanding Place Value • In 2004, the number of Labrador retrievers registered with the American Kennel Club was 146, 692. • What is the value of the digit 4 in 146, 692? • Let’s look at a place value chart to help us understand the value of each digit in a number. • Remember - the value of a digit depends on its place-value position in the number!!
Period • I thought we only used periods for sentences! • A period is a group of three digits separated by a commas in a large number. • These periods help when writing in different forms. They help reading and writing numbers correctly. • Every period is separated by a comma.
The Three Different Forms • Standard Form - the actual number • Example: 146,692 • Word Form - the number written as words • Example - one hundred forty six thousand six hundred ninety-two • Expanded Form - the number written showing the value of each digit • Example - 100,000 + 40,000 + 600 + 90 + 2
Chance Tickets • Write the value of the underlined digit. • 32,086 • 78,387 • 109,378 • 590,320 • Write in expanded form. • 5,789 • 49,909 • 18,046 • Write in word form. • 23,285
Assignment • I hope you enjoyed the presentation and learned a lot!! (a lot is two words!!) • Here is your assignments that you will be working on at your seat quietly. • Page 19 - #’s 12–17, 21-26, 29-36 • Get them all correct, No Math Homework!!
Rules • Work quietly. • Work by yourself. • Try your best. • Enjoy!!