No Series: Counting Collections to 100
Math.1.NBT.C.4
| Common core State Standards
- Math: Math
- 1: Grade 1
- NBT: Number & Operations in Base Ten
- C: Use place value understanding and properties of operations to add and subtract
-
4:
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
Math.1.NBT.C.5
Common core State Standards
- Math: Math
- 1: Grade 1
- NBT: Number & Operations in Base Ten
- C: Use place value understanding and properties of operations to add and subtract
-
5:
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
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Discussion and Supporting Materials
Thought starters
- How does the second part of the lesson build off of the first part?
- Ms. Tse says that she has a classroom of kids who love math. What can you learn from Ms. Tse about engaging students?
- How does Ms. Tse create opportunities for students to learn from each other?
School Details
Lakeridge Elementary School7400 South 115th Street
Seattle WA 98178
Population: 399
Data Provided By:
Teachers
Theresa Tse
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4 MIN
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5 MIN
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5 MIN
UNCUT CLASSROOMS
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English Language Arts
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