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Problem Solving in Math
Transcript of Problem Solving in Math
Practice Problem Solving in Math Strategy - A plan to reach a specific goal
Process - A series or sequence of steps that help achieve a goal
Relevant - Important I can solve word problems by selecting and using an appropriate strategy.
I can represent a problem situation and describe the process used to solve the problem.
I can identify relevant, missing, and/or extra information in word problems. Face Partners:
Blue Say: "A strategy is ____________. "
Purple Say: " A process is ______________. "
Blue Say: " Relevant means ____________." Using the Process
Flow Chart Read Problem Pick Out Relevant (Important) Information Choose A Strategy Draw a diagram
Create a chart
Make an expression/equation
Trial & Error Solve Check for Reasonableness Checking for Reasonableness means that you look at the problem and your solution to determine if your final answer makes sense.
If your answer makes sense, it is Reasonable! Step 1 Step 2 step 3 step 4 Step 5 Example Problem: There are 3 classes of 22 students making icecream sundaes. A sundae can be made using one of three syrups and one of three candy toppings. Each student makes one sundae. What is the total number of sundaes made by the students? Problem Solving Process Step 1 - Read Problem There are 3 classes of 22 students making icecream sundaes. A sundae can be made using one of three syrups and one of three candy toppings. Each student makes one sundae. What is the total number of sundaes made by the students? step 2 - Pick Out Relevant Information There are 3 classes
Each class has 22 students
Each student makes 1 sundae
Extra Information (Not Relevant):
A sundae has 1 syrup and 1 candy topping
There are 3 syrups and 3 candy toppings to choose from step 3 - Choose a Strategy I will write an expression to solve my problem. 3 classes of 22 students, each have 1 sundae 3 x 22 1 x step 4 - Solve (3 x 22) x 1 or 3 x 22
3 x 22 = 66 *66 Total Sundaes were made by
students Step 5 - Check for Reasonableness I know this answer is reasonable because if I estimate 22 to the number 20 and then add 20 three times for the number of classes, it would equal 60 students. Each student eats a sundae so that would be 60 sundaes. This answer is close to my actual answer, 66 . . . so it is reasonable. Let's try one! Use a flow map. Luis raked 12 bags of leaves on Monday, 3 bags of leaves on Tuesday, none on Wednesday, 5 bags on Thursday, and 2 bags of leaves on Friday. Luis earns $2.50 for each bag of leaves he collects. What is the total amount of money Luis earned from Monday through Wednesday? Review with Your Group
Round Robin -
#1 - Step 1
#2 - Step 2
#3 - Step 3
#4 - Step 4
#5 or #1 - Step 5 Essential Questions
What is the first step in solving a word problem?
How do you determine if information is relevant, extra or missing?