SaiBook.us Measurement

Example

Title: Identify the types of fraction

Grade: 4-a Lesson: S1-L4

Explanation: The best way to understand measurement is by looking at some examples. Take turns and read each example for easy understanding.

Examples:

Rearrange numbers in the descending order 5.3, 7.7, 18.7, 19.9, 11.4, 13.6.

Step 1a

Explanation: Noting the given numbers.

Step 1b

Compare the first two numbers, 5.3 and 7.7. Since 7.7 is greater than 5.3, we swap their positions.
New order: 7.7, 5.3, 18.7, 19.9, 11.4, 13.6.
Compare the next two numbers, 7.7 and 18.7. Since 18.7 is greater than 7.7, we swap their positions.
New order: 18.7, 5.3, 7.7, 19.9, 11.4, 13.6.

Explanation: Comparing the two numbers and writing the new order.

Step 1c

Compare the next two numbers, 7.7 and 19.9. Since 19.9 is greater than 7.7, we swap their positions. New order: 18.7, 5.3, 19.9, 7.7, 11.4, 13.6.
Compare the next two numbers, 19.9 and 7.7. No swap is needed since 19.9 is already greater than 7.7. Current order: 18.7, 5.3, 19.9, 7.7, 11.4, 13.6.

Explanation: Comparing the next two numbers and writing the new order.

Step 1d

Compare the next two numbers, 19.9 and 11.4. Since 19.9 is greater than 11.4, we swap their positions.
New order: 18.7, 5.3, 19.9, 11.4, 7.7, 13.6.
Compare the last two numbers, 11.4 and 13.6. Since 13.6 is greater than 11.4, we swap their positions.
New order: 18.7, 5.3, 19.9, 13.6, 7.7, 11.4.

Explanation: Comparing the next two numbers and writing the new order.

Step 1e

At this point, we have reached the descending order since we have compared all the numbers.

Explanation: Final order: 19.9, 18.7, 13.6, 11.4, 7.7, 5.3.