In this topic, students will:
read and write numbers through one million in expanded form, with numerals and using number names
recognize the relationship between adjacent digits in a multi-digit number
use place value to compare multi-digit whole numbers
use place value to round multi-digit numbers
use previously learned concepts and skills to construct arguments about place value
Vocabulary:
Place value - the position of a digit in a number that tells the value of the digit
Millions - in a number, the period of three places to the left of the thousands period
Period - in a number, a period is a group of three digits, separated by commas, starting from the right.
Expanded form - a number written as the sum of the values of its digits
Greater than symbol (>) - a symbol that points toward a lesser number
Less than symbol (<) - a symbol that points away from a greater number
Rounding - a process that determines which multiple of 10, 100, 1,000, and so on, a number is closet to
Estimate - to make an approximate calculation
Conjecture - a statement that is believed to be true but has not been proven
At-home practice:
Supplies:
a deck of cards (Remove all face cards)
Divide the cards evenly between the players. Decide what place value you want to go to (hundreds, thousands, etc.). Both players flip over as many cards as needed for the place value ( hundreds = 3 cards, thousands 4 cards, etc.). Players should organize their cards to make the largest possible number. The player with the largest numbers wins all the cards. Continue playing until one player has all the cards.