Post by CMorris on Nov 20, 2008 10:46:46 GMT -5
Date: .9th October, 2006
Subject: Mathematics
Topic: Prime numbers
Grade: Five
No. of students: 12
Sex: 4 boys 8 girls
Ability: 10 – 11 year
Duration of lesson: 35 mins
Objectives: At the end of the lesson, learners should be able to:
1. Identify prime numbers between 1- 50
2. Define prime numbers
Previous knowledge: Students know whole numbers.
Instructional Materials: hundred squares, washable markers
Introduction:
Have students call out the set of counting numbers from 1-50.
Development:
Step 1
Present hundred squares to students, have students say what it is. Tell students it is the sieve of Eratosthenes.
Step 2
Using the sieve have students shade the number 1, circle the number 2 and cross out all the numbers they know are divisible by two. Students will repeat the procedure for 3, 5 and 7
Step3
Have students tell what they realize about the remaining numbers, have students tell what kind of numbers are these.
Discuss with students prime numbers and give a definition.
Closure
Teacher will call out some numbers and students will say whether it is a prime number or not.
Application:
Find the prime numbers between these numbers.
1. 1 and 20
2. 20 and 30
3. 30 and 50
Evaluation:
Submitted by
Catherine Morris
Subject: Mathematics
Topic: Prime numbers
Grade: Five
No. of students: 12
Sex: 4 boys 8 girls
Ability: 10 – 11 year
Duration of lesson: 35 mins
Objectives: At the end of the lesson, learners should be able to:
1. Identify prime numbers between 1- 50
2. Define prime numbers
Previous knowledge: Students know whole numbers.
Instructional Materials: hundred squares, washable markers
Introduction:
Have students call out the set of counting numbers from 1-50.
Development:
Step 1
Present hundred squares to students, have students say what it is. Tell students it is the sieve of Eratosthenes.
Step 2
Using the sieve have students shade the number 1, circle the number 2 and cross out all the numbers they know are divisible by two. Students will repeat the procedure for 3, 5 and 7
Step3
Have students tell what they realize about the remaining numbers, have students tell what kind of numbers are these.
Discuss with students prime numbers and give a definition.
Closure
Teacher will call out some numbers and students will say whether it is a prime number or not.
Application:
Find the prime numbers between these numbers.
1. 1 and 20
2. 20 and 30
3. 30 and 50
Evaluation:
Submitted by
Catherine Morris