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Use place value understanding to identify the three digits of a three-digit number as the amount of hundreds, tens, and ones. (2.NBT.1)
Concepts and Skills
* Power Standard Content
*Understand place value to hundreds
Read and write numbers to 1000 or more using base-ten numerals, number names and expanded form
Compare three-digit numbers; record using symbols (<, =, >)
Count/skip-count by 1s, 2s, 5s, 25s, and 100s past 1,000
Count back by 1s, 10s, and 100s from any number less than 1,000
Mentally add or subtract 10 or 100 to / from any given number
Use efficient strategies to fluently add and subtract within 100
Add and subtract within 1000 using models, drawings, and other strategies
A student in 2nd grade can demonstrate the ability to apply and comprehend critical language by explaining place value up to the hundreds place, the relationship between the hundreds, tens, and ones places, and by using place value to explain why addition and subtraction strategies work.
Location of digits determines their value.
Identifying the repetition in a pattern allows the pattern to be described by a rule.
Factual Guiding Questions
How can you compare two sets of numbers?
What patterns exist in numbers?
What real life situations require us to add and subtract?
Conceptual Guiding Questions
How does knowing place value help to perform computations?
What is the relationship between the value of a digit and the values of the digits on either side of it?
Why do we compare numbers?
Engaging/Debatable Guiding Questions
How would the world be different without place value?