Measuring Lengths of Objects

The video tutorial teaches how to measure and compare lengths in centimeters. It begins with a review of proper measurement techniques, emphasizing starting at zero and ensuring the object is straight. The tutorial then demonstrates comparing lengths using two boats, a helicopter and a rocket, and a word problem involving a truck and a scooter. The key strategy is using subtraction to find the difference in lengths, starting with the larger number.

What is the first step in measuring the length of an object in centimeters?

• Use inches instead of centimeters

• Begin at 0 on the ruler

• Ensure the object is curved

• Start at 1 on the ruler

How long is the first boat mentioned in the video?

• 10 centimeters

• 5 centimeters

• 3 centimeters

• 8 centimeters

What is the difference in length between the two boats?

• 5 centimeters

• 2 centimeters

• 3 centimeters

• 8 centimeters

Which object is shorter: the toy helicopter or the toy rocket?

• Both are the same length

• The toy helicopter

• Neither, they are not compared

• The toy rocket

What is the length of the toy rocket?

• 5 centimeters

• 9 centimeters

• 11 centimeters

• 7 centimeters

How do you find the difference in length between two objects?

• Divide the larger length by the smaller length

• Subtract the smaller length from the larger length

• Multiply their lengths

• Add their lengths

In the word problem, how long is George's toy truck?

• 10 centimeters

• 12 centimeters

• 7 centimeters

• 15 centimeters

What is the length of George's toy scooter?

• 7 centimeters

• 12 centimeters

• 5 centimeters

• 9 centimeters

How much longer is the toy truck compared to the toy scooter?

• 2 centimeters

• 7 centimeters

• 5 centimeters

• 3 centimeters

What mathematical operation is used to compare the lengths of the toy truck and scooter?

• Subtraction

• Division

• Multiplication

• Addition