Percent Problem Solving Techniques

In this video, Miss Janky introduces Module 8.3, focusing on solving percent problems. The lesson is divided into three days, with the first day covering how to find the percent of a number using a formula. The video explains the proportion method, which involves cross-multiplication, and introduces a shortcut method for specific cases. Practice problems are provided to reinforce the concepts, and students are encouraged to try solving them independently. The lesson concludes with a reminder of the importance of understanding the formula for future lessons.

What is the essential question discussed in the introduction of the lesson?

• How to use percents to solve problems

• How to divide fractions

• How to add decimals

• How to multiply numbers

Which formula is used to solve percent problems in this lesson?

• is over of equals percent over 100

• a squared plus b squared equals c squared

• circumference equals 2 pi r

• area equals length times width

In the problem 'What is 28% of 25?', what is the value of x?

• 7

• 8

• 6

• 5

What is the first step in the shortcut method for finding the percent of a number?

• Subtract the numbers

• Convert the percent to a decimal

• Divide the numbers

• Add the numbers

What is the result of converting 28% to a decimal?

• 28.0

• 2.8

• 0.28

• 0.028

In the practice problem 'What is 35% of 60?', what is the value of x?

• 19

• 18

• 20

• 21

Which method is recommended for solving all types of percent problems?

• Proportion method

• Shortcut method

• Estimation method

• Graphing method

In the problem 'What is 38% of 50?', what is the value of x?

• 19

• 18

• 20

• 21

What is the final step in solving a proportion problem?

• Subtract the numbers

• Divide by the number next to x

• Multiply the numbers

• Add the numbers

Why is the proportion method preferred over the shortcut method?

• It is easier to remember

• It is faster

• It requires no calculations

• It works for all types of percent problems