Achievement Descriptors: Overview Addition and Subtraction Within 200 Achievement Descriptors (ADs) are standards-aligned descriptions that detail what students should know and be able to do based on the instruction. ADs are written by using portions of various standards to form a clear, concise description of the work covered in each module. Each module has its own set of ADs, and the number of ADs varies by module. Taken together, the sets of module-level ADs describe what students should accomplish by the end of the year. ADs and their proficiency indicators support teachers with interpreting student work on • informal classroom observations (recording sheet provided in the module resources), • data from other lesson-embedded formative assessments,
Observational Assessment Recording Sheet Student Name
Grade 2 Module 2
Addition and Subtraction Within 200 Achievement Descriptors
Dates and Details of Observations
2.Mod2.AD1
Represent and solve one-step addition and subtraction word problem types within 100 by using drawings and equations with a symbol for the unknown.
2.Mod2.AD2
Add up to 4 two-digit numbers by using strategies based on place value or properties of operations.
2.Mod2.AD3
Add within 200 by using concrete models or drawings, strategies based on place value, or properties of operations.
2.Mod2.AD4
Subtract within 200 by using concrete models or drawings, strategies based on place value, properties of operations, or the relationship between addition and subtraction.
2.Mod2.AD5
Rename 10 of a smaller unit as 1 of a larger unit.
2.Mod2.AD6
Rename 1 of a larger unit as 10 of a smaller unit. PP Partially Proficient P Proficient HP Highly Proficient
Notes
• Exit Tickets, • Topic Tickets, and • Module Assessments. 426
This module contains the six ADs listed.
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2.Mod2.AD1
2.Mod2.AD2
2.Mod2.AD3
Represent and solve one-step addition and subtraction word problem types within 100 by using drawings and equations with a symbol for the unknown.
Add up to 4 two-digit numbers by using strategies based on place value or properties of operations.
Add within 200 by using concrete models or drawings, strategies based on place value, or properties of operations.
2.OA.A.1
12
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2.NBT.B.6
14
2.NBT.B.7
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