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1.4 Chemistry. Chemistry 1.4. Problem Solving in Chemistry. 1.4. - PowerPoint PPT Presentation
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1.4 ChemistryChemistry 1.4
© Copyright Pearson Prentice Hall
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Problem Solving in Chemistry
Shape-sorter toys fascinate young children. Typically, the children try placing a shape in different holes until they find the right one. The trial-and-error approach is one method of problem solving, but it is usually not the best one.
1.4
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Problem Solving in Chemistry
Skills Used in Solving Problems
Skills Used in Solving Problems
What is a general approach to solving a problem?
1.4
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© Copyright Pearson Prentice Hall
>Problem Solving in Chemistry
Skills Used in Solving Problems
Effective problem solving always involves developing a plan and then implementing that plan.
1.4
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© Copyright Pearson Prentice Hall
>Problem Solving in Chemistry
Skills Used in Solving Problems
Shopping involves problem solving skills.
1.4
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Problem Solving in Chemistry
Solving Numeric Problems
Solving Numeric Problems
What are the three steps for solving numeric problems?
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© Copyright Pearson Prentice Hall
>Problem Solving in Chemistry
Solving Numeric Problems
The steps for solving a numeric word problem are analyze, calculate, and evaluate.
1.4
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© Copyright Pearson Prentice Hall
>Problem Solving in Chemistry
Solving Numeric Problems
Analyze
To solve a word problem, you must first determine where you are starting from (identify what is known) and where you are going (identify the unknown).
After you identify the known and the unknown, you need to make a plan for getting from the known to the unknown.
1.4
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>Problem Solving in Chemistry
Solving Numeric Problems
Calculate
If you make an effective plan, doing the calculations is usually the easiest part of the process.
Evaluate
Check that your answer is reasonable and makes sense. Check that it has the correct unit and the correct number of significant figures.
1.4
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SAMPLE PROBLEM
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1.1
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SAMPLE PROBLEM
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1.1
Figure 1.25 Map of Indianapolis
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SAMPLE PROBLEM
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Solving Numeric Problems
1.1
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SAMPLE PROBLEM
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Solving Numeric Problems
1.1
© Copyright Pearson Prentice Hall
SAMPLE PROBLEM
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Solving Numeric Problems
1.1
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Practice Problems
Solving Numeric Problems
Problem Solving 1.27 Solve Problem 27 with the help of an interactive guided tutorial.
for Sample Problem 1.1
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Problem Solving in Chemistry
Solving Conceptual Problems
Solving Conceptual Problems
What are the two steps for solving conceptual problems?
1.4
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© Copyright Pearson Prentice Hall
>Problem Solving in Chemistry
Solving Conceptual Problems
The steps for solving a conceptual problem are analyze and solve.
1.4
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Solving Conceptual Problems
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Solving Conceptual Problems
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Slide 21 of 27
Solving Conceptual Problems
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Slide 22 of 27
Practice Problems for Conceptual Problem 1.1
Problem Solving 1.29 Solve Problem 29 with the help of an interactive guided tutorial.
For Conceptual Problem 1.1
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Section Quiz
-or-Continue to: Launch:
Assess students’ understanding of the concepts in Section
1.4 Section Quiz
1.4
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1.4 Section Quiz
1. Effective problem solving always involves developing a plan and then
a. evaluating the plan.
b. doing calculations.
c. making an estimate.
d. implementing the plan.
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1.4 Section Quiz
2. During the analyze step for solving a numeric word problem, you
a. make an estimate of the answer using correct units.
b. rearrange an equation to solve for an unknown.
c. identify what is known and unknown and make a plan.
d. convert a measurement from one unit to another.
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1.4 Section Quiz
3. The steps for solving a conceptual problem are
a. solve and evaluate.
b. analyze, solve, and evaluate.
c. analyze and solve.
d. analyze, calculate, and evaluate.
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>Problem Solving in Chemistry
Chem ASAP
Concept Map 1 Solve the Concept Map with the help of an interactive guided tutorial.
END OF SHOW