Lesson Planning of Basic Operation and Decimals (Multiplication)
Students` Learning Outcomes
- The students will be able to multiply a decimal by 10, 100, and 1000.
Information for Teachers
- When multiplying by 10, 100, and 1000, etc. count the zeros to find out how much bigger your number must be.
- This is a multiplication skill and hence need drill. The more they exercise the more they understand.
- Since they have already done in tables like 2 times 10, 6 times 10 etc.
- Teacher should use/ consult from textbook where and when required.
Material / Resources
Writing board, chalk/marker, duster, paper and pencils for the whole class
- Verbal math`s can you tell?
- 2 x 10?
- 4 x 100?
- 10 x 10?
- What are we doing?
- What are appending zeros, as per 10 or its power?
- Today we will observe multiplication of decimal values by 10, 100, and 1000.
- Do you know?
- There is a decimal point in every number!!!
- 5 is actually 5.0000…, 84 is actually 84.0000
- Just like every number these can also be written as a fraction 84 /1, 5/1 etc.
- So when we multiply these decimal jumps to right!
- Let`s see how!
Sum up / Conclusion
- When multiplying by 10, 100, and 1000 etc. count the zeros to find out how much bigger your number must be.
- In this method the decimal point moves rather that the digit.
- Complete the following table:
- Write questions to multiply with 10, 100, and 1000?
- Solve these questions by multiplying with 10.