Exploring 5th Grade Math: Module 1 - Lesson 7 Concepts

Mr. Walker's math lesson focuses on rounding numbers, both whole and decimal. The lesson begins with an introduction to the concept of rounding and its practical applications. It then delves into rounding whole numbers using place value charts and vertical number lines. The lesson progresses to rounding decimals, demonstrating how to decompose numbers into unit values for better understanding. Throughout, Mr. Walker provides examples and encourages practice, emphasizing the importance of understanding the 'why' behind rounding rules.

What is the purpose of rounding a number?

• To change its value

• To make it easier to work with

• To convert it to a fraction

• To make it more complex

Which of the following is NOT a way to decompose the number 155?

• 1 hundred, 5 tens, and 5 ones

• 155 ones

• 15 tens and 5 ones

• 100 + 55

When rounding 155 to the nearest ten, what is the result?

• 150

• 160

• 155

• 140

What is the midpoint between 100 and 200 on a vertical number line?

• 125

• 175

• 100

• 150

How can the number 1.57 be decomposed?

• 157 tenths

• 1 and 57 hundredths

• 15 tenths and 7 hundredths

• 1 and 57 tenths

What is the low point when rounding 1.57 to the nearest tenth?

• 1.55

• 1.5

• 1.6

• 1.57

When rounding 4.381 to the nearest ten, what is the result?

• 0

• 10

• 5

• 4

What is the midpoint between 4 and 5 on a vertical number line?

• 4.25

• 4.75

• 4.1

• 4.5

When rounding 4.381 to the nearest hundredth, what is the result?

• 4.4

• 4.37

• 4.39

• 4.38

What should you do if you are still having trouble understanding the concept of rounding?

• Reach out to your teacher or learning guide

• Try a different subject

• Give up

• Ignore it