Welcome! Sign In or Try it Free!
Search Over 150,000 Teacher Reviewed Lesson Plans and 75,000 Worksheets
- Grade Range
- 9th - 12th
- Rating
Students investigate the concept of a perfect number and use various methods for determining what numbers are perfect. They utilize three methods for determining whether a number is aperfect number and are asked to select their perference. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite numbers. Full Review »
- Grade Range
- 8th - 10th
- Rating
Stsudents examine factors, prime factorization, and relatively prime numbers. They use computer interfaces to examine cryptology. Students choose prime numbers and discover how to send and receive secret messages using encryption and decryption processes. Full Review »
- Grade Range
- 6th
- Rating
Students investigate the concept of prime and composite numbers. They use a review of multiplication to help explain factoring. Students are taught the definition of a prime and composite number and then practice independently. Full Review »
- Grade Range
- 5th
- Rating
Students use a calculator to identify the missing numbers in a number sequence. They observe how to calculate a tax and tip, write down the code they enter in their calculators for a worksheet, and with a partner use prime numbers to fill in the blanks on a Prime Time worksheet. Full Review »
- Grade Range
- 5th
- Rating
Students observe and demonstrate a variety of problem solving strategies to solve problems involving a mystery number, prime numbers and multiples. They work through the problem step-by-step with the teacher, then independently solve a similar problem. Full Review »
- Grade Range
- 8th
- Rating
Students study the definitions needed to complete computation with prime and composite numbers. They participate in a guided practice lesson using prime and composite numbers. Finally, they complete a student practice worksheet. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students use a Factor Board game to identitfy the properties of prime, composite, abundant, deficient and perfect numbers. The game is comprised of the numbers from 1 to 30 placed in a 5 by 6 grid. Pupils figure out they can score more points by picking certain numbers. Full Review »
- Grade Range
- 7th
- Rating
Students, through teacher instruction and guided practice, discover how to test and correctly identify the prime numbers and state the rule as to why they are prime. They complete complete a worksheet independently, following the same rules. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students use rectangular models or arrays to explore numbers from one to fifty. They express numbers as the product of two smaller numbers. Students identify the factors of numbers 1 to 50. They identify the prime numbers from 1 to 50. Full Review »
Link to This
Email This
Share