Achievement Descriptors: Proficiency Indicators

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Observational Assessment Recording Sheet

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.

RELATED CCSSM 2.OA.A.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.1

1See [CCSSM] Glossary, Table 1.

Partially Proficient Proficient Highly Proficient

Represent and solve one-step kindergarten and

grade 1 addition and subtraction word problem

types* within 100 by using drawings and equations with a symbol for the unknown.

Read

Alex rides her bike for 45 minutes on Sunday. On Monday, she rides for 17 minutes. How many total minutes does Alex ride?

Draw

Represent and solve one-step grade 2 addition and subtraction word problem types† within 100 by using drawings and equations with a symbol for the unknown.

Read

Alex rides her bike on Sunday. On Monday, she rides for 17 minutes. She rides 62 total minues. How many minutes does Alex ride on Sunday?

Draw

Write

Write

Alex rides for total minutes.

Alex rides for minutes on Sunday.

* Common Core Standards Writing Team, Progressions for the Common Core, 2011–2015. † Common Core Standards Writing Team, Progressions for the Common Core, 2011–2015.