Numbers to 1,000
Children explore several ideas as they work with 3- and 4-digit numbers.
* The digits in a 3-digit number represent hundreds, tens, and ones. Children can best understand the relationships between the 4 different place values by using concrete models such as base-ten blocks. These models help children see that 1 ten is a group of 10 ones and 1 hundred is a group of 10 tens. When children are then introduced to 4-digit numbers, they can see ow the pattern continues---1 thousands is a group of 10 hundreds.
* Work with base-ten blocks will help children visualize numbers so that they can understand how the value of a digit changes depending upon its place in a number. For example, a 4 in the tens place represents 40; and a 4 in the hundreds place represents 400.
Children apply their understanding of place value to compare and order greater numbers.
* Relationships can be explored using both language and symbols. The language "is greater than" and "is less than" can be used to compare single and multi digit numbers.The symbols can be used after children are fluent using language to compare numbers.
* Children apply what they know about place value when they compare numbers by looking at the values of the places. Consider comparing 354 and 372.
* Children look at the hundreds place first and see that the value of the digits in the hundreds places are the same, then they look at the value of the digits in the tens places to determine that 372 is greater than 354.
* The digits in a 3-digit number represent hundreds, tens, and ones. Children can best understand the relationships between the 4 different place values by using concrete models such as base-ten blocks. These models help children see that 1 ten is a group of 10 ones and 1 hundred is a group of 10 tens. When children are then introduced to 4-digit numbers, they can see ow the pattern continues---1 thousands is a group of 10 hundreds.
* Work with base-ten blocks will help children visualize numbers so that they can understand how the value of a digit changes depending upon its place in a number. For example, a 4 in the tens place represents 40; and a 4 in the hundreds place represents 400.
Children apply their understanding of place value to compare and order greater numbers.
* Relationships can be explored using both language and symbols. The language "is greater than" and "is less than" can be used to compare single and multi digit numbers.The symbols can be used after children are fluent using language to compare numbers.
* Children apply what they know about place value when they compare numbers by looking at the values of the places. Consider comparing 354 and 372.
* Children look at the hundreds place first and see that the value of the digits in the hundreds places are the same, then they look at the value of the digits in the tens places to determine that 372 is greater than 354.
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