• 08/23/13   |   Adjusted: 01/10/17   |   2 files

# Representing and Solving Addition and Subtraction Problems Mini-Assessment

Author: Student Achievement Partners

• Description
• Files

This mini-assessment is designed to illustrate the important content standard 2.OA.A.1 which sets an expectation for using 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. This mini-assessment is designed for teachers to use either in the classroom, for self-learning, or in professional development settings to:

• Appreciate the intricacies of one-step addition and subtraction word problems;
• Build understanding of the expectations of an important standard in the CCSSM; and,
• Identify strengths and weaknesses in students' understanding of the operations of addition and subtraction and how they can be used to model situations – whether before, during, or after teaching aspects of this material.

• Making the Shifts

How does this mini-assessment exemplify the instructional Shifts required by CCSSM?

 Focus Belongs to the major work of second grade Coherence Builds on previous work representing addition and subtraction and solving addition and subtraction word problems Rigor Conceptual Understanding: secondary in this mini-assessment Procedural Skill and Fluency: not targeted in this mini-assessment Application: primary in this mini-assessment
• Noteworthy features of this resource
• Mathematically:
• Addresses the variety of single-step addition and subtraction problems required in the Standards, and detailed in the progression document, K Counting and Cardinality; K–5 Operations and Algebraic Thinking
• Requires students to repeatedly make sense of quantities and their relationships and to decontextualize information by abstracting a given situation and representing it symbolically (MP.2)
• Requires students to choose addition and subtraction equations that represent problem situations (MP.4)
• As a mini-assessment:
• Allows the teacher to evaluate students on their understanding of 2.OA.A.1 in order to prepare to teach 2.OA.A.1 or to check student understanding after teaching 2.OA.A.1
• Maps each problem to its corresponding situation type to help the teacher understand student learnings and/or mislearnings