

Unit 3 Place Value, Counting, and Comparison of Numbers to 1,000 Grade 2 Math 


Description: All arithmetic algorithms are manipulations of place value
units: ones, tens, hundreds, etc. In Unit 3, students extend and apply their
understanding of place value to read and write numbers to 1000 using baseten
numerals, number names, and expanded form. Students will compare numbers to
1000 by using <, >, and = to record the results of comparisons. 

Louisiana Student
Standards for Mathematics (LSSM) 





Enduring Understandings: ·
Place value
is based on groups of ten. ·
Place
value allows us to use 10 digits to express numbers up to and beyond 1000;
the location of a digit in a number determines its value. ·
The
value of a digit depends upon its place in a number. ·
Numbers
can be represented in many ways, such as with base ten blocks, words,
pictures, number lines, and expanded form. ·
Place
value determines which numbers are larger or smaller than other numbers. 
Essential Questions: ·
How
does the position of a digit in a number effect its value? ·
Why do
numbers have place value? ·
How can
numbers be expressed, ordered and compared? ·
Why
should we understand place value? ·
What is
the difference between place and value? ·
How
does place value help us solve problems? ·
How
does the value of a digit change when its position in a number changes? ·
What
does “0” represent in a number? 


