Understanding Puddle Depths and Fractions

The video tutorial explains how to determine the depth difference between two puddles by subtracting fractions. It begins with Lily measuring puddles and recording the data. The problem is to find how much deeper the puddle under the swing is compared to the one on the sidewalk. The tutorial explains the subtraction of fractions, converting mixed numbers to improper fractions, and solving the problem. A visual representation is provided to aid understanding.

What is the main task Lily is trying to accomplish with the puddles?

• Find out how much deeper one puddle is compared to another

• Measure the width of the puddles

• Calculate the volume of the puddles

• Determine the color of the puddles

Tags

CCSS.4.MD.B.4

How deep is the puddle under the swing?

• Three-fourths inches

• One inch

• One and one-fourth inches

• Two-fourths inches

Tags

CCSS.4.MD.B.4

What is the depth of the puddle on the sidewalk?

• One and one-fourth inches

• One inch

• Three-fourths inches

• Two-fourths inches

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Why is there a problem when trying to subtract two-fourths from one-fourth?

• Two-fourths is a larger fraction than one-fourth

• One-fourth is not a fraction

• One-fourth is larger than two-fourths

• Two-fourths is not a valid fraction

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How can one and one-fourth be rewritten to make subtraction easier?

• As five-fourths

• As two-fourths

• As three-fourths

• As one-fourth

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of subtracting two-fourths from five-fourths?

• Four-fourths

• Three-fourths

• Two-fourths

• One-fourth

Tags

CCSS.1.G.A.3

How is the whole number one represented in terms of fourths?

• Two-fourths

• Three-fourths

• Four-fourths

• Five-fourths

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the key realization needed to solve the subtraction problem?

• Using a calculator

• Knowing the puddle depths

• Realizing one can be rewritten as four-fourths

• Understanding that two-fourths is larger

Tags

CCSS.7.NS.A.3

What is the final depth difference between the puddle under the swing and the one on the sidewalk?

• One-fourth of an inch

• Four-fourths of an inch

• Two-fourths of an inch

• Three-fourths of an inch

Tags

CCSS.5.NBT.B.7

What visual method is used to explain the subtraction process?

• Dividing a whole into sections

• Drawing a number line

• Using a pie chart

• Creating a bar graph

Tags

CCSS.5.NBT.B.7