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This Grade 5 Supplement Set A2 – Number and Operations: Primes, Composites and Common Factors activity also includes:
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- Worksheet
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Incorporate riddles into your math lesson by having students make tree factors and determine if the number is a prime or composite. They will also use other clues to find the answer to the riddle while sharpening their multiplication skills.
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CCSS:
Adaptable
Concepts
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Instructional Ideas
- Supplement this resource into a primary lesson series on common factors
- Drawing factor trees and Venn diagrams can be messy if students are trying to solve the problem in a small space; make sure they have plenty of paper and space to answer the equations
- Consider whether or not you want kids using a calculator. If you don't, edit the sentence permitting them to do so
Classroom Considerations
- Use projector to explain the lesson using factor trees and Venn diagrams so pupils have a better understanding before exploring on their own
- Graph paper might be useful for solving the equations
Pros
- Extension activities included
- Worksheet bridges gap from knowing it to doing it
Cons
- None