Exploring EdPuzzle SPARK for 4th Grade

The video tutorial covers three main topics: expanded notation of numbers, decomposing fractions into unit fractions, and measuring angles using arcs. It begins by explaining how to express numbers in expanded notation by breaking down each digit according to its place value. Next, it demonstrates how to decompose fractions into unit fractions using repeated addition, providing examples with different fractions. Finally, the video explains how to measure angles by adding the degrees of arcs, emphasizing the importance of marking the degree symbol.

What is the value of the '8' in the number 4286?

• 8000

• 800

• 80

• 8

What is the expanded form of 4286?

• 4000 + 20 + 80 + 6

• 4000 + 200 + 80 + 6

• 4000 + 200 + 8 + 6

• 400 + 200 + 80 + 6

How do you write 52518 in expanded notation?

• 50000 + 2000 + 500 + 18

• 5000 + 200 + 500 + 10 + 8

• 50000 + 2000 + 500 + 10 + 8

• 52000 + 500 + 18

What does a unit fraction represent?

• A fraction with 1 as the denominator

• Any fraction that equals 1

• A fraction with 1 as the numerator

• A fraction that can't be simplified further

How can 3/4 be decomposed into unit fractions?

• 1/4 + 1/4 + 1/4

• 1/2 + 1/4

• 3 x 1/4

• 1/3 + 1/3 + 1/3

What is the correct decomposition of 5/7?

• 1/7 + 1/7 + 1/7 + 1/7 + 1/7

• 5 x 1/7

• 1/5 + 1/5 + 1/5 + 1/5 + 1/5

• 1/7 + 1/7 + 1/7

In the fraction 5/7, what is the value of each unit fraction?

• 5

• 1/7

• 1/5

• 7

Which of the following represents the decomposition of 4/9?

• 1/9 + 1/9 + 1/9 + 1/9

• 4 x 1/9

• 2/9 + 2/9

• 1/4 + 1/4 + 1/4 + 1/4

How many degrees is the first part of the arc?

• 36 degrees

• 78 degrees

• 37 degrees

• 41 degrees

What is the total measure of the angle shown by the arc?

• 82 degrees

• 76 degrees

• 80 degrees

• 78 degrees