Download Document

1NBT.2.3

2011
Domain: Number and Operations in Base Ten
Cluster: Understand Place Value
Standards: Compare two two-digit numbers based on meanings of the tens and ones digit, recording the results of
comparisons with the symbols >, =, and <.
Essential Questions
How can you compare the
greater number for any 2
two-digit numbers?
Enduring Understandings


Place value can be used
to compare numbers.
Place value can be use to
order numbers.
Content Statements
Numbers can be compared
based on the tens and ones
digit using the symbols >,
=, and <.
Activities, Investigation, and Student Experiences



Use connecting cubes made into 10 towers, each of the
same color, and loose cubes per pair to represent each
number.
Ex. Use cubes to compare 34 and 43.
Use 2 unequal groups of students; ask them to come to
the front of the class. Follow by asking the class how
many are in each group and what group has more.
Ex. Use 21 students (11 is greater than 10; 10 is less than
11).
Students can use hundred chart to find the missing
number.
Assessments
Oral Assessment:
Ask two students to take a handful of cubes from a container.
Assist the class counting the cubes; write the numbers and
have the class compare them.
Written Assessment:
Students can use words (greater than, less than, equal to) or
symbols (<, =, and >) to compare numbers.
Ex. 23 is less than 43 or 23 < 43
Equipment Needed: Manipulatives such as counters or
Teacher Resources:
1NBT.2.3
connecting cubes made into towers, classroom hundred chart,
copies of individual incomplete hundred charts.
2011
http://www.aasd.k12.wi.us/staff/boldtkatherine/MathResources_
Primary.htm
http://www.ixl.com/math/grade-1/comparing-numbers-up-to100
http://www.box.net/shared/6v377ilja0