Length Measurement – Basic 1 Mathematics Lesson Note (Third Term)

Non-standard measurement of length

What is Length? Length is how long or short something is.

Non-Standard Units: We can measure length using everyday objects:

• Hand spans – width of your hand

• Footsteps – length of your foot

• Paper clips – small metal clips

• Pencils – writing tools

• Books – school books

Exercise 11: Measure using hand spans:

1. The table is _____ hand spans long
2. The door is _____ hand spans tall
3. The book is _____ hand spans wide

Exercise 12: Measure using footsteps:

1. From the door to the board is _____ footsteps
2. The length of the classroom is _____ footsteps
3. From your seat to the teacher’s desk is _____ footsteps

Exercise 13: Measure using paper clips:

1. Your pencil is _____ paper clips long
2. Your ruler is _____ paper clips long
3. Your book is _____ paper clips wide

Exercise 14: Choose the best unit to measure:

1. Length of a worm: (hand spans/paper clips) ___
2. Height of a tree: (footsteps/paper clips) ___
3. Width of a table: (hand spans/footsteps) ___

5. Standard measurement of length

Standard Units: Standard units are the same for everyone.

Common Standard Units:

• Centimeter (cm) – for small objects

• Meter (m) – for bigger objects

• Kilometer (km) – for very long distances

Exercise 15: What unit would you use?

1. Length of your pencil: (cm/m/km) ___
2. Distance to another town: (cm/m/km) ___
3. Height of your friend: (cm/m/km) ___
4. Width of your book: (cm/m/km) ___

Exercise 16: Circle the correct measurement:

1. A pencil is about: (15 cm/15 m/15 km)
2. A classroom is about: (8 cm/8 m/8 km)
3. Distance between cities: (50 cm/50 m/50 km)

Exercise 17: True or False:

1. We use centimeters to measure small things ___
2. We use kilometers to measure long distances ___
3. A meter is smaller than a centimeter ___
4. Standard units are the same for everyone ___

6. Comparison of length

Comparing Lengths:

• Longer – has more length

• Shorter – has less length
• Same length – equal length

Exercise 18: Compare these objects:

1. A pencil and a ruler: The ruler is _____ than the pencil
2. A book and a paper: The book is _____ than the paper
3. Your arm and your finger: Your arm is _____ than your finger

Exercise 19: Circle the longer object:

1. (Table/Chair) ___
2. (Door/Window) ___
3. (Bus/Car) ___
4. (Tree/Flower) ___

Exercise 20: Circle the shorter object:

1. (Pen/Pencil) ___
2. (Book/Paper) ___
3. (Finger/Arm) ___

Exercise 21: Put these in order from shortest to longest: Objects: Snake, Worm, Rope, Thread

Order: _____, _____, _____, _____

Exercise 22: Use the words: longer, shorter, same length

1. A bus is _____ than a car
2. Your two arms are the _____
3. A snake is _____ than a worm
4. An ant is _____ than a dog

Exercise 23: Measure and compare:

1. Measure your desk with hand spans: _____ hand spans
2. Measure your friend’s desk with hand spans: _____ hand spans
3. Which desk is longer? _____

Exercise 24: Draw objects:

1. Draw a long line: _____________
2. Draw a short line: _____
3. Draw two lines of the same length: _____ _____