Measuring Lengths with a Centimeter Model

What is used as a model to measure lengths in centimeters?

• A unit circle

• A unit triangle

• A unit cube

• A unit square

How many centimeters long is the green line as measured in the video?

• 10 cm

• 7 cm

• 8 cm

• 9 cm

What common object is approximately the same width as one centimeter?

• Length of a key

• Length of a pen

• Width of a fingernail

• Width of a smartphone

How long is the orange line as measured using unit cubes?

• 10 cm

• 13 cm

• 11 cm

• 12 cm

Why is it important to avoid gaps or overlaps when marking measurements?

• To save time

• To use fewer cubes

• To ensure accuracy

• To make it look neat

What is the significance of counting the spaces between marks when measuring?

• It uses fewer unit cubes

• It is a faster method

• It is easier than counting marks

• It helps in precise measurement

What is the total length of the blue and red ribbons combined?

• 15 cm

• 14 cm

• 13 cm

• 12 cm

If the blue ribbon is 5 cm, how long is the red ribbon?

• 20 cm

• 15 cm

• 5 cm

• 10 cm

How many centimeters long is the line measured by Bob using unit cubes?

• 5 cm

• 6 cm

• 7 cm

• 8 cm

What is the next lesson about after learning to measure with unit cubes?

• Estimating weights in grams

• Estimating lengths in centimeters

• Calculating area in square meters

• Measuring volume in liters