The easiest way to teach students how to choose an operation is to teach them to identify key words.
Consider writing this chart below on your front board and have students copy it into their problem solving notebooks.
Students may write that they added two plus four because it said “$2 and $4” so they thought that it meant to add. Then, they subtracted $6 from $10 because it said the word “How much” and “Left” and that is how they came to answer of $4.
It is also important to encourage students to read the entire problem once through before they choose an operation.
This is because sometimes they may think it is one thing, when it’s actually another.
Scientific Method Research Paper - Problem Solving Lesson Plans
The best way for students to practice this is to give them some tricky problems that have too much information in them, and they have to weed out the bad information to find the real information.This strategy involves deciding which mathematical operation students will use (addition, subtraction, multiplication, division, or a combination of operations).When choosing a mathematical operation, students will need the ability to understand the literal meaning of the sentence, as well as understand how to express the meaning mathematically.Both of these examples show that a key component of an effective lesson is the balance between individual/group work and the chance for students to share and compare their approaches, strategies, and solutions in presentations to the whole class.Orchestrating this transition, as well as bringing the class period to a close, summarizing the work that has been done, and setting up the next day's extensions, are also key tasks for the teacher.At the same time, however, all students should have access to the problem.Students should build on their previous knowledge as they begin to solve the problem.Young students usually discover this strategy when they are learning their multiplication tables.They notice that 2 x 4 is the same as 4 x 2, and so on.Enrichment: For students who need an extra challenge, provide the Math Ninja worksheet.Support: For students needing support, provide and go through the Monster Word Problems worksheet in a small group setting.