A Blog on Problem Solving & Word Problems
Problem solving is a life skill, as we all problem solve everyday - what to wear, what to eat, where to sit at lunch, how to schedule our day, which homework assignment to complete first, how to manage our budget, etc. Students often don't realize how much problem solving they do on a daily basis. It's helpful to connect problem solving in math to everyday problem solving. Students know and use more tools for problem solving than they realize!
Problem solving integrates critical thinking. Problem solving is as much about the method, approach, and thinking as it is about the correct answer. Plus, good problems may not have only one correct answer. Problem solving is also a great way to support students in being comfortable with making mistakes and learning from their mistakes. Making mistakes is part of learning and we need to allow for that in our classrooms (Boaler, 2016). Problem solving additionally provides opportunities for explaining and justifying our methods and solutions - all of which supports higher order thinking and understanding. Problem solving shouldn't conclude with simply the correct answer. It should focus on the method, the thinking, the explanation, and the understanding, among other aspects (Boaler, 2016).
Problem solving isn't just about the steps followed. It's about the thinking underlying the steps and the process. Too often, when we teach problem solving, we focus so much on the steps that students memorize the steps but don't truly understand the process or develop the critical thinking necessary with strong problem solving. Consider that every textbook series has its own problem solving process. Is one process truly better than any other? Every time we change textbook series should we change our approach to problem solving? Any of the approaches provided by the textbook series have value. But the emphasis is on the thinking and the process - not a list of steps. Any problem solving method can be used. We all have our preferred methods. Teaching and developing problem solving skills is about consistency with how we teach the thinking that is necessary with the steps. I argue that it is more important for there to be consistency across grade levels within a school about how problem solving is taught and fostered than it is on ensuring that students can regurgitate steps. If the steps don't involve any critical thinking, then what is the point?
Word problems are a common way we integrate problem solving in math classes. Word problems can provide real-life context and application of math concepts - particularly if the context is one in which students can relate and/or have experienced. One key factor often overlooked with word problems is the underlying literacy skills that are required for supporting student success in solving word problems (Leinwand, 2009). By the time a student reaches third grade, if a student is struggling with reading, the student often begins to struggle in math because the complexity of word problems typically increases in third grade. Essentially, the student's struggles with reading impact their success in math, not because of lack of understanding of math concepts, but because of challenges with reading complex text. It is critical for literacy skills to be explicitly addressed and applied in math class, especially with word problems (Leinwand, 2009).
Reading in math is technical reading. Comprehension strategies taught in ELA should be referenced and applied in math class. In ELA while reading a text, if students are expected to annotate what they are reading, they should also be annotating when they read in math. The comprehension strategies and skills taught in ELA do not apply only to ELA - they apply to anything students read. These cross-curricular connections are often overlooked. We need to explicitly connect these ELA strategies to math and other subject areas (Leinwand, 2009). These strategies can provide important scaffolding for students as they develop their problem solving skills, particularly with word problems. If your school is departmentalized, collaborate with your ELA teacher to ensure consistency in language and strategies in breaking apart technical text. If you are self-contained, review the strategies you are teaching and applying in ELA and directly connect them to reading in math.
With the application of literacy skills, students learn to read word problems for context. Solving word problems is premised on understanding the context of the word problem itself. At times, students are taught to look for key words and numbers. From my experience, I find this approach to not be effective for teaching students to solve word problems because students typically then focus on locating the key words and numbers without fully reading and understanding the problem. Many words in math have different meanings based on the context of the problem. Give me a "key word," and I'll provide at least two different computational operations that can be used with that word. Focusing on reading for context is more effective.
Writing in math is also helpful for strengthening student understanding of concepts and skills. It also builds on the writing strategies and skills students are learning in ELA for technical writing. If a student can explain their thinking verbally or in writing, they can show their depth of understanding. Below I provide some suggestions for integrating writing into math, such as with math journals. I additionally provide suggestions for integrating more literature into math as the literature can provide context for math as well as provide practice for strengthening reading comprehension with technical text.
References
Boaler, J. (2016). Mathematical mindsets: Unleashing students' potential through creative math, inspiring messages and innovative teaching. San Francisco, CA: Jossey-Bass.
Leinwand, S. (2009). Accessible mathematics: 10 instructional shifts that raise student achievement. Portsmouth, NH: Heinemann.
National Council of Teachers of Mathematics. (2014). Principles to actions: Ensuring mathematical success for all. Reston, VA: NCTM.
To further emphasize the importance of literacy skills in math, consider the attached document from the New York State Education Department titled Introduction to the New York State Next Generation English Language Arts Learning Standards (Revised 2017) [Internet. Available from http://www.nysed.gov/curriculum-instruction/new-york-state-next-generation-english-language-arts-learning-standards; accessed November 20, 2020]. On page 3 of this document, there is a chart titled "Lifelong Practices of Readers and Writers." Read through this chart and then read through it a second time from the perspective of "lifelong practices of mathematicians" (instead of readers and writers). Does the meaning change? Do the skills and practices change? Consider the background knowledge and literacy skills that support students in fluently breaking apart and solving word problems. This reflection activity is helpful for teachers for self-reflection in support of connecting literacy skills with math. It can also be used with students to help them connect the reading comprehension strategies they use in ELA with the comprehension strategies needed for word problems in math.
This activity focuses on supporting students in thinking about the problem solving process. The steps provided in these slides can be justifiably ordered in different ways. The problem solving steps included here are one example of steps that can be used. But again, the emphasis is on thinking about the process and how it is used. The emphasis is not on following one set of steps - it is on justifying the steps used and why. I recommend students work in small group on this activity. With the Google Slides format, the activity can be conducted in a virtual or in-person setting. The word problem included can be changed to accommodate any grade level.
If you would like to download this activity to use with your students, please submit this Google Form: https://forms.gle/evJ4iwrpRgCis88j9, and I will share the document with you. Please be sure to include the activity title in the form submission.
This activity is the same as the online version above, but instead is structured so that it can be printed and cut into pieces. Students can then physically move the pieces to place them in the order that makes sense to them. As explained above, this activity is not about one set of problem solving steps or students memorizing steps. The activity is about focusing on thinking about the steps and justifying what steps would be used and in what order. See the online version above for additional instructions and tips.
Learning Objective → Students will sort steps (and break apart and sort steps) for solving word problems to strengthen understanding of methods for solving word problems, including application of literacy skills in comprehending the problem.
Integrating literature with math can be a great way to help students in applying their literacy skills to math. It can also be a strategy for strengthening literacy skills and for developing problem solving. The document included here provides recommendations and suggestions for integrating literature with math.
Writing in math is a great way to strengthen student understanding of math concepts. If a student can explain the math, it shows a level of understanding. Writing in math is technical writing, so of course, it provides an application of the writing skills and strategies students learn in ELA. I recommend collaborating with the ELA teacher (if you don't teach both subjects) to establish consistency with how technical writing is taught and applied. The document included here provides recommendations and suggestions for integrating writing in math, as well as some sample journal prompts that can be used.
Second grade math is a great time to develop student writing in math. As students are becoming better readers and writers in their ELA class, these skills can be applied to writing in math. Plus, drawings or other visuals can be used in math as part of the written solution. Students who can explain their ideas and solutions demonstrate a stronger understanding of the math they are solving. A checklist can be a great way to support students in developing their writing in math as well as encourage them to own their written solutions. The checklist above includes space for a goal to be written for the assignment.
Resources and activities coming soon!
Solving puzzles involves problem solving. This activity uses an online jigsaw puzzle that allows for changes to the puzzle so students can reflect on how their thinking about solving the puzzle may change depending on the parameters of the puzzle. This activity can help students to understand that problem solving occurs in different contexts - not just with computation.
Of all the problem solving approaches I've seen and used, the one I've become the biggest fan of is applying computational thinking concepts from computer science to problem solving in math. I love the emphasis on higher order thinking in this process and I value the focus on refining and re-visiting the different components. This approach is particularly beneficial to integrate if coding classes are offered in your school. As math underlies coding, integrating the computational thinking concepts from computer science can be a great way to strengthen student understanding and application of math to real-life contexts.