Measuring Objects to the Nearest Fractional Inch Using a Ruler

This video tutorial teaches how to measure objects to the nearest 1/4, 1/2, 3/4, and 1 inch using a ruler. It begins with an introduction to fractions, using a rectangle model to explain halves and fourths. The tutorial then demonstrates how to create a ruler from a number line and discusses the concept of approximate measurements. Examples include measuring dolls to illustrate how to determine measurements that are not exact. The lesson concludes with a summary of the key points covered.

What fraction represents half of a rectangle when it is divided into four equal parts?

• 2/4

• 1/4

• 3/4

• 4/4

How can a number line be transformed into a ruler?

• By adding whole numbers only

• By marking every inch

• By dividing it into thirds

• By sectioning it into halves and fourths

If a measurement is slightly less than 1 and 1/2, what is the best way to record it?

• As approximately 1 and 1/2

• As exactly 1 and 1/2

• As approximately 1 and 3/4

• As exactly 1 and 1/4

When measuring Adrian, which mark on the ruler is his height closest to?

• 2 and 3/4 inches

• 2 inches

• 2 and 1/4 inches

• 2 and 1/2 inches

What is the approximate height of Mark if he is slightly taller than 3 and 1/4 inches?

• 3 and 1/4 inches

• 3 inches

• 3 and 1/2 inches

• 3 and 3/4 inches