Sharing Strategies for Counting Collections
Grades 23 / Math / Number Sense
CCSS:
Math.2.NBT.A.2
Math.3.NBT.A.2
Common Core State Standards
Math 
Math 
2 
Grade 2 
NBT 
Number & Operations in Base Ten 
A 
Understand place value 
2 
Count within 1000; skipcount by 5s, 10s, and 100s. 
Download Common Core State Standards (PDF 1.2 MB) 
Common Core State Standards
Math 
Math 
3 
Grade 3 
NBT 
Numbers & Operations in Base Ten 
A 
Use place value understanding and properties of operations to perform multidigit arithmetic 
2 
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction. 
Download Common Core State Standards (PDF 1.2 MB) 
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 Lesson Objective
 Record and share strategies when skip counting
 Length
 8 min
 Questions to Consider
 How can this activity be differentiated for different grades and abilities?
 Why is it important to discuss different ways to record strategies?
 How does Ms. Todd relate this activity to addition?
 See also Mathematical Practice Standard 5 in the CCSS
 Common Core Standards
 Math.2.NBT.A.2, Math.3.NBT.A.2
Teacher & School Info

Laretha Todd
 School Details
 Lakeridge Elementary School Seattle, WA
 Population
 439 students
 Student/Teacher Ratio
 15:1
 District Spending
 $8208
Supporting Materials

Sharing Strategies for Counting Collections Transcript
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Lesson Idea (Common Core) Sharing Strategies for Counting Collections
Grades 23 / Math / Number Sense