Lesson Planning of Conversion of Units of Lengths
Students` Learning Outcomes
- Convert centimetres to millimetres and vice versa
Information for Teachers
- A millimetre is one-thousandth of a meter shortly written as “mm”.
- It is roughly thickness of our finger nail or a paperclip and the smallest measurement unit on a scale.
- Centimeter is further divided into a smaller unit ‘millimetres’.
- 1 centimeter = 10 millimetres.
- Multiply the centimeter by 10 to get millimetre, as; mm = cm x 10.
- Divide the number of millimetres by 10 to get centimetres. , as
- During this lesson the teacher should consult with textbook at each level where required.
Material / Resources
Measuring tape, scale, writing board, chalk/marker, duster, prints of fee and hand, flashcards, textbook
- Ask the students today we will know to convert centimetres to millimetre and millimetres to centimetres.
- Ask the students in which units do you think the length and thickness of your nail can be measured?
- Quote examples from daily life as; a rain gauge (instrument which is used to measure the amount of rain) which measures rain in millimetres.
- Ask the students to bring out their scales and observe the centimeter and millimetre lines.
- Tell them between any two centimetres lines there are 10 small lines represent millimetres.
Sum up / Conclusion
- 1 cm can be further divided into smaller unit’s known as millimetres.
- A Millimetres is the smallest unit of measurement shortly written as; “mm”.
- 1 cm = 10 mm
- Multiply the centimetres by 10 to get millimetres, as; mm = cm x 10.
- Divide the number of millimetres by 10 to get centimetres, as cm = mm ÷10
- Distribute the following questions among the students and ask them to choose the best answer, as ;
- The paper clip is 3 ______ long.
(a) Centimetres (b) kilometres
- The scale shown on ruler is in ________.
(a) Meters (b) centimetres
- Lead of pencil is measured in _________.
(a) Centimetres (b) millimetres
- Ayesha`s geometry is ______ long.
(a) Millimetres (b) centimetres
- Nadir measured a line of his art project. It is 200 mm long. How many centimetres is the line?
- Javed`s shoe box is 20 cm long and 10 cm wide. How many more millimetres is the length of the shoes box than the width?
- Seema has 42 cm long piece of 3 equal lengths. How long should each piece be in millimetres?
- My younger sister asked me to tie up her gas balloon with a long thread. I took a 50 cm long thread. What is the length of the thread in millimetres?
1 thought on “Lesson Planning of Units of Lengths”
helped a lot with good planning I am also a teacher and making lesson planning how I send my c lesson plans for check