Uncovering Student Thinking about Mathematics in the Common Core: 25 Formative Assessment Probes
Publication Year: 2014
Uncover common mathematical misconceptions with 25 easy-to-implement assessments. You can continuously monitor learning and improve student skills and processes in algebra, functions, geometry, and more!
- Front Matter
- Back Matter
- Subject Index
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Library of Congress Cataloging-in-Publication Data
Tobey, Cheryl Rose, author.
Uncovering student thinking about mathematics in the common core, high school: 25 formative assessment probes / Cheryl Rose Tobey, Carolyn B. Arline.
Includes bibliographical references and index.
ISBN 978-1-4522-7657-1 (pbk.)
1. Mathematics—Study and teaching (Secondary) 2. Mathematical ability— Evaluation. 3. Individualized instruction. 4. Effective teaching. I. Arline, Carolyn B., author. II. Title.
This book is printed on acid-free paper.
14 15 16 17 18 10 9 8 7 6 5 4 3 2 1
Acquisitions Editor: Jessica Allan
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Preface Mathematics Assessment Probes[Page vii]Overview
Formative assessment informs instruction and supports learning through varying methods and strategies aimed at determining students’ prior knowledge of a learning target and using that information to drive instruction that supports each student in moving toward understanding of the learning target. Questioning, observation, and student self-assessment are examples of instructional strategies educators can incorporate to gain insight into student understanding. These instructional strategies become formative assessments if the results are used to plan and implement learning activities designed specifically to address the specific needs of the students.
This book focuses on using short sets of diagnostic questions, called Mathematics Assessment Probes. The Probes are designed to elicit prior understandings and commonly held misunderstandings and misconceptions. This elicitation allows the educator to make sound instructional choices, targeted at a specific mathematics concept and responsive to the specific needs of a particular group of students.
Diagnostic assessment is as important to teaching as a physical exam is to prescribing an appropriate medical regimen. At the outset of any unit of study, certain students are likely to have already mastered some of the skills that the teacher is about to introduce, and others may already understand key concepts. Some students are likely to be deficient in prerequisite skills or harbor misconceptions. Armed with this diagnostic information, a teacher gains greater insight into what to teach. (McTighe & O'Connor, 2005) [Page viii]
The Mathematics Assessment Probes provided here are tools that enable high school teachers to gather important insights in a practical way and that provide immediate information for planning purposes.Audience
The first collection of Mathematics Assessment Probes and the accompanying Teacher Notes were written for the busy classroom teacher eager for thoughtful, research-based diagnostic assessments focused on learning difficulties and aimed at enhancing the effectiveness of mathematics instruction. Since the publication of the first three Uncovering Student Thinking in Mathematics resources (Rose & Arline, 2009; Rose, Minton, & Arline, 2007; Rose Tobey & Minton, 2011), we have continually received requests for additional probes. Both teachers and education leaders have communicated the need for a collection of research-based probes that focus on a narrower grade span. In addition to additional probes for each grade span, educators were eager for an alignment of the probes to the Common Core Mathematics Standards (Council of Chief State School Officers, 2010). In response to these requests, we set to work writing, piloting, and field testing a more extensive set of probes for high school teachers with a focus on targeting mathematics concepts within the new standards. This book is one in a series of Uncovering resources for the K–2, 3–5, 6–8, and 9–12 grade spans.Organization
This book is organized to provide readers with the purpose, structure, and development of the Mathematics Assessment Probes as well as to support the use of applicable research and instructional strategies in mathematics classrooms.
Chapter 1 provides in-depth information about the process and design of the Mathematics Assessment Probes along with the development of an action-research structure we refer to as a QUEST Cycle. Chapters 2 through 6 contain the collection of probes categorized by concept strands with accompanying Teacher Notes to provide the specific research and instructional strategies for addressing students’ challenges with mathematics. Chapter 7 highlights instructional considerations and images from practice to illuminate how easily and in how many varied ways the probes can be used in mathematics classrooms. This chapter also highlights how use of the probes can support students'proficiency with the Common Core's Mathematical Practices.
We would like to thank the many mathematics educators who, during attendance at various professional development sessions, gave valuable feedback about features of the Probes, including structures, concepts to target, and purposes of use. Your excitement during these sessions is what continues to motivate us to develop and pilot additional probes and teacher notes.
We especially would like to acknowledge the contributions of the following educators who provided ideas and field-tested Probes, gave feedback on Teacher Notes, scheduled classroom administrations, and/or opened their classrooms to us to try Probes or interview students: Erica Cooper, Dwayne Elm, Robyn Graziano, Kendra Guiou, Julie Hernandez, Lori Libby, Melanie Maroy, Michelle Parks, Debbie Sheridan, Frank Smith, Kimarie Soule, Beverly Wentworth, and the middle and high school teachers of Maine's Regional School Unit 2 (RSU 2).
We would like to thank our Corwin editor, Jessica Allan, for her continued support and Senior Project Editor, Melanie Birdsall, for her dedication in helping us to bring our vision of the contents of these resources through to production. As before, we acknowledge Page Keeley, our science colleague, who designed the process for developing diagnostic assessment Probes and who tirelessly promotes the use of these assessments for formative assessment purposes, helping to disseminate our work in her travels.
Mostly, we are grateful for the continued support, sacrifice, and patience shown by our families—Corey, Grandad, Carly, Jimmy, Bobby, Samantha, and Jack; and Liz, Kate, Adam, Sophie, and Gram— throughout the writing of this final book in the series.
Corwin gratefully acknowledges the contributions of the following reviewers:
Coordinator of Data and Assessment
Kearsarge Regional High School
About the Authors
Information on the Standards for Mathematical Practice[Page 214]
The Standards for Mathematical Practice are not a checklist of teacher to-dos but rather support an environment in which the CCSS for mathematics content standards are enacted and are framed by specific expertise that you can use to help students develop their understanding and application of mathematics. (Zimmermann, Carter, Kanold, & Toncheff, 2012, p. 28)
Formative assessment begins by identifying a learning goal, such as a course expectation from the Common Core State Standards (CCSS). The Common Core State Standards for Mathematics (CCSSM) define what students should understand and be able to do in K-12 mathematics. Since the course expectations in the CCSS define what students should “understand” or “be able to do,” it is important for teachers to find out what students know and can do both conceptually or procedurally in relation to the expectation for learning. In addition to these content standards, an important feature of the CCSSM is the Standards for Mathematical Practices. These practices describe a variety of processes, proficiencies, and dispositions that teachers at all grade levels should seek to develop in their students. Since the CCSS do not define the methods and strategies used to determine the readiness and prior knowledge necessary to achieve the standards, the mathematics assessment probes in this book complement CCSS's eight Standards for Mathematical Practices and their link to mathematical con tent (the preceding information was adapted from Keeley & Rose Tobey, 2011, p. 30).[Page 215]Structuring the Mathematical Practice StandardsFigure A.1 The Progression Project's Structure of the Mathematics Standards
The Institute for Mathematics and Education's (IME's) Progression Project is organizing the writing of final versions of the progressions documents for the K–12 Common Core State Standards. The work is being done by members of the original team along with mathematicians and educators not involved in the initial writing of the standards (IME, 2012). The Progression Project created the diagram in Figure A.1 to provide some higher order structure to the practice standards, in the way that the clusters and domains provide higher order structure to the content standards.
The remaining part of this appendix will address each of the Practice Clusters using language from a variety of resources, including the Common Core document and the Common Core Learning Progressions documents. In Chapter 7, we describe how the Probes can be used in relationship to the ideas of each cluster.[Page 216]Reasoning and Explaining Practice Cluster (Practices 2 and 3)
Each of the Probes includes a selected answer response and an explanation prompt. These explanation prompts are the key to the practices within this cluster.
Mathematical Practice 2. Reason abstractly and quantitatively. Students demonstrate proficiency with this practice when they make sense of quantities and relationships while solving tasks. This involves both decontexualizing and contextualizing. When decontextualizing, students need to translate a situation into a numeric or algebraic sentence that models the situation. They represent a wide variety of real-world contexts through the use of real numbers and variables in mathematical expressions, equations, and inequalities. When contextualizing, students need to pull from a task information to determine the mathematics required to solve the problem. For example, after a line is fit through data, students interpret the data by interpreting the slope as a rate of change in the context of the problem.
Students who reason abstractly and quantitatively are able to
- move from context to abstraction and back to context,
- make sense of quantities and their relationships in problem situations,
- use quantitative reasoning that includes creating a coherent representation of the problem at hand,
- consider the units involved,
- attend to the meaning of quantities (not just how to compute with them),
- know and flexibly use different properties of operations and objects, and
- use abstract reasoning when measuring and compare the lengths of objects. (Common Core Standards Writing Team 2012, 2013a, 2013b, 2013c; Council of Chief State School Officers [CCSSO], 2010))
Mathematical Practice 3. Construct viable arguments and critique the reasoning of others. Students demonstrate proficiency with this practice when they accurately use mathematical terms to construct arguments, engage in discussions about problem-solving strategies, examine a variety of problem-solving strategies, and begin to recognize the reasonableness of them, as well as similarities and differences among them. High school students should construct arguments using verbal or written explanations accompanied by expressions, equations, inequalities, models, and graphs, tables, and other data displays, including box plots, dot plots, and histograms. Students should look for examples of correlation being interpreted as cause and sort out why that reasoning is incorrect.
Students who construct viable arguments and critique the reasoning of others are able to
Seeing Structure and Generalizing Practice Cluster (Practices 7 and 8)
- make conjectures and build a logical progression of statements to explore the truth of their conjectures;
- recognize and use counterexamples;
- [Page 217]justify their conclusions, communicate them to others, and respond to the arguments of others;
- distinguish correct logic or reasoning from that which is flawed and, if there is a flaw in an argument, explain what it is;
- construct arguments using concrete referents such as objects, draw ings, diagrams, and actions;
- listen to or read the arguments of others, decide whether they make sense, and ask useful questions to clarify or improve arguments, including, “How did you get that?” “Is that always true?” and “Why does that work?” (CCSSO, 2010; Common Core Standards Writing Team 2012, 2013a, 2013b, 2013c)
Adolescents make sense of their world by looking for patterns and structure and routines. They learn by integrating new information into cognitive structures they have already developed.
Mathematical Practice 7. Look for and make use of structure. Students demonstrate proficiency with this practice when they look for patterns and structures in the number system and other areas of mathematics such as modeling problems involving properties of operations. Students examine patterns in tables and graphs to generate equations and describe relationships. For instance, students recognize proportional relationships that exist in ratio tables, double numbers, graphs, and equations, recognizing the multiplicative properties. Students are expected to see how the structure of an algebraic expression reveals properties of the function it defines. Seeing structure in expressions entails a dynamic view of an algebraic expression, in which potential rearrangements and manipulations are ever present. An important skill for college readiness is the ability to try out possible manipulations mentally without having to carry them out and to see which ones might be fruitful and which are not. In geometry, students compose and decompose two- and three-dimensional figures to solve real-world problems involving area and volume and explore the effects of transformations and describe them in terms of congruence and similarity.
Students who look for and make use of structure are able to
- attend to regularities in numeric table entries and corresponding geometrical regularities in their graphical representations as plotted points;
- see how the structure of an algebraic expression reveals properties of the function it defines;
- develop the practice of writing expressions for functions in ways that reveal the key features of the function;
- measure the attributes of three-dimensional shapes, allowing them to apply area formulas to solve surface area and volume problems; and
- categorize shapes according to properties and characteristics. (CCSSO, 2010; Common Core Standards Writing Team 2012, 2013a, 2013b, 2013c)
[Page 218]Mathematical Practice 8. Look for and express regularity in repeated reasoning. Students demonstrate proficiency with this practice when they look for regularity in problem structures when problem solving, notice if calculations are repeated, look both for general methods and for shortcuts, and use repeated reasoning to understand algorithms and make generalizations about patterns. For example, they make connections between covariance, rates, and representations showing the relationships between quantities. They are expected to move from repeated reasoning with the slope formula to writing equations in various forms for straight lines, rather than memorizing all those forms separately. They use iterative processes to determine more precise rational approximations for irrational numbers. Students justify a statistical hypothesis by simulating the sampling process many times and approximating the chance of a sample proportion.
Students who look for and express regularity in repeated reasoning are able to
Modeling and using Tools Practice Cluster (Practices 4 and 5)
- notice if processes are repeated,
- look both for general methods and for shortcuts,
- continually evaluate the reasonableness of their intermediate results, and
- repeat the process of statistical reasoning in a variety of contexts. (CCSSO, 2010; Common Core Standards Writing Team 2012, 2013a, 2013b, 2013c)
Students use different tools (i.e., algebra tiles, graphing calculators, statistical software) in the mathematics classroom. How the tools are used depends on the mathematics topic of focus, and the same tool might be used in a variety of contexts. When given a problem, students need to be able to determine what tool would be appropriate, how the tool could be used in solving the problem, and how to communicate about their process. It is important for students to be able communicate about the modeling process by representing the process using numbers and symbols.
Mathematical Practice 4. Model with mathematics. Students demonstrate proficiency with this practice when they model real-life mathematical situations with algebraic equations or inequalities and check to make sure that their equations/inequalities accurately match the problem contexts. For example, students form expressions, equations, or inequalities from real-world contexts and connect symbolic and graphical representations. They explore covariance and represent two or more quantities simultaneously. They use measures of center and variability and data displays (i.e., box plots and histograms) to draw inferences about and make comparisons between data sets. Students use scatterplots to represent data and describe [Page 219]associations between variables. Students need many opportunities to connect and explain the connections between the different representations. They should be able to use all of these representations as appropriate to a problem context.
Students who model with mathematics are able to
- apply what they know to make approximations,
- identify important quantities in a problem situation,
- analyze relationships between quantities, and
- reflect on whether the results make sense. (CCSSO, 2010; Common Core Writing Standards Team, 2012, 2013a, 2013b, 2013c)
Mathematical Practice 5. Use appropriate tools strategically. Students demonstrate proficiency with this practice when they access and use tools appropriately. Students consider available tools (including estimation and technology) when solving a mathematical problem and decide when certain tools might be helpful. For example, students might draw pictures, use computer applications or simulations, or write equations to show the relationships between the angles created by a transversal. They may decide to represent figures on the coordinate plane to calculate area. Number lines are used to understand division and to create dot plots, histograms, and box plots to visually compare the center and variability of the data. In addition, students might use physical objects or computer applications to construct nets and calculate the surface area of three-dimensional figures. They make statistical inferences from data collected in sample surveys and in designed experiments, aided by simulation and the technology that affords it.
Students who use appropriate tools strategically are able to
Overarching Habits of Mind of Productive Thinkers Practice Cluster (Practices 1 and 6)
- consider available tools when solving a mathematical problem,
- make sound decisions about when each of these tools might be helpful,
- explain their choice of a particular tool for a given problem, and
- detect possible errors by strategically using estimations. (CCSSO, 2010; Common Core Standards Writing Team 2012, 2013a, 2013b, 2013c)
Productive disposition refers to the tendency to see sense in mathematics, to perceive it as both useful and worthwhile, to believe that steady effort in learning mathematics pays off, and to see oneself as an effective learner and doer of mathematics. Developing a productive disposition requires frequent opportunities to make sense of mathematics, to recognize the benefits of perseverance, and to experience the rewards of sense making in mathematics. (National Research Council [NRC], 2001, p. 131)
[Page 220]Mathematical Practice 1. Make sense and persevere in solving problems. Students demonstrate proficiency with this practice when they make sense of the meaning of the task and find an entry point or a way to start the task. Students solve real-world problems involving ratio, rate, area, and statistics through the application of algebraic and geometric concepts. Students use concrete manipulative, pictorial, and symbolic representations as well as mental mathematics. Students are also expected to persevere while solving tasks; that is, if students reach a point in which they are stuck, they can think about the task in a different way and continue working toward a solution. They may check their thinking by asking themselves, “What is the most efficient way to solve the problem?” “Does this make sense?” and “Can I solve the problem in a different way?” They develop visualization skills connected to their mathematical concepts as they recognize the existence of, and visualize, components of three-dimensional shapes that are not visible from a given viewpoint.
Students who use appropriate tools strategically are able to
- start by explaining to themselves the meaning of a problem and looking for entry points to its solution;
- make conjectures about a solution;
- plan a solution pathway rather than simply jumping into a solution attempt;
- monitor and evaluate their progress and change course if necessary;
- rely on using concrete objects or representations to help conceptual ize and solve a problem;
- check their answers to problems using a different method;
- continually ask themselves, “Does this make sense?”; and
- make sense of the problem-solving approaches of others, noticing simi larities and differences among approaches. (CCSSO, 2010; Common Core Standards Writing Team 2012, 2013a, 2013b, 2013c)
Mathematical Practice 6. Attend to precision. Students demonstrate proficiency with this practice when they are precise in their communication, calculations, and measurements. Students continue to refine their mathematical communication skills by using clear and precise language in their discussions with others and in their own reasoning. For example, students become more precise when attending to attributes, such as being a special right triangle or a parallelogram. They state precisely the meaning of variables they use when setting up equations, including specifying whether the variable refers to a specific number or to all numbers in some range. During tasks involving number sense, students consider if their answer is reasonable and check their work to ensure the accuracy of solutions. When measuring or using measurement data, students attend to the unit.
[Page 221]Students who attend to precision are able to
- communicate precisely to others;
- use clear definitions in discussion with others and in their own reasoning;
- state the meaning of the symbols they choose, including using the equalsign consistently and appropriately; and
- specify units of measure to clarify the correspondence with quantities in a problem. (CCSSO, 2010; Common Core Standards Writing Team 2012, 2013a, 2013b, 2013c)
Learn more about how the probes support teachers in assessing ideas related to the mathematical practices in Chapter 7.
Developing Assessment Probes[Page 222]
Developing an assessment probe is different from creating appropriate questions for comprehensive diagnostic assessments and summative measures of understanding. The probes in this book were developed using a process similar to that described in Mathematics Curriculum Topic Study: Bridging the Gap Between Standards and Practice (Keeley & Rose, 2006; see also Mundry, Keeley, & Rose Tobey, 2012). The process is summarized as follows:
- Use national standards to examine concepts and specific ideas related to a topic. The national standards used to develop the probes for this book are Common Core Standards for Mathematics (CCSSO, 2010). The Common Core Standards for Mathematics (referred to as CCSSM) define what students should understand and be able to do in K-12 mathematics.
- Within a CCSS course expectation, select the specific concepts or ideas you plan to address and identify the relevant research findings. The sources for research findings include the Research Companion to Principles and Standards for School Mathematics (National Council of Teachers of Mathematics [NCTM], 2003), Elementary and Middle School Mathematics: Teaching Developmentally (Van De Walle, Karp, & Bay-Williams, 2013), articles from NCTM's Journal for Research in Mathematics Education, Second Handbook of Research on Mathematics Teaching and Learning (Lester, 2007), and additional supplemental articles related to the topic.
- Focus on a concept or a specific idea you plan to address with the probe and identify the related research findings. Keep the targeted concept small enough to assess with a few items as probes are meant to be administered in a short amount of time. Rather than trying to [Page 223]target as much information about a topic as possible, it is better to be more narrow and focused.
- Choose the type of probe format that lends itself to the situation (see more information on probe format in Chapter 1's “What Is the Structure of a Probe?” beginning on page 13). Develop the stem (the prompt), key (correct response), and distractors (incorrect responses derived from research findings) that match the developmental level of your students.
- Share your assessment probe(s) with colleagues for constructive feedback, pilot with students, and modify as needed.
Feedback on the assessment probes developed for this resource was collected from high school educators across multiple states, and the probes were piloted with students across multiple grade levels in a variety of courses. The feedback and student work were used to revise the probes and to support the development of the accompanying teacher notes.
Action Research Reflection Template: Quest Cycle[Page 224]Questions to Consider about the Key Mathematical Concepts
What is the concept you wish to target? Is the concept at course level or is it a prerequisite?Uncovering Student Understanding about the Key Concepts
How will you collect information from students (e.g., paper-pencil, interview, student response system)? What form will you use (e.g., one-page Probe, card sort)? Are there adaptations you plan to make? Review the summary of typical student responses.[Page 225]Exploring Excerpts from Educational Resources and Related Research
Review the quotes from research about common difficulties related to the Probe. What do you predict to be common understandings and/or misunderstandings for your students?Surveying the Prompts and Selected Responses in the Probe
Sort by selected responses and then re-sort by trends in thinking. What common understandings/misunderstandings did the Probe elicit? How do these elicited understandings/misunderstandings compare to those listed in the Teacher Notes?Teaching Implications and Considerations
Review the bulleted list and decide how you will take action. What actions did you take? How did you assess the impact of those actions? What are your next steps?
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