Activity
Illustrative Mathematics

Zeroes and factorization of a quadratic polynomial I

For Teachers 10th - 12th Standards
This activity uses the division algorithm and the definition of a zero/root of a function to guide your class to see the relationship between zeros and factors of a general quadratic, which can later be generalized to the Remainder...
Activity
Texas Instruments

Texas Instruments: Divisibility Rules! Using Scientific Calculators

For Teachers 6th - 8th
Concepts and skills covered in this activity include number theory, divisibility rules, multiples, factors, and problem-solving skills.
Activity
Purple Math

Purplemath: Lcm & Gcf

For Students 9th - 10th Standards
Purplemath shows an easy and orderly way to determine the GCF and LCM of any two numbers. Even large numbers won't be a challenge with this method.
Activity
University of Cambridge

University of Cambridge: Nrich: A Conversation Piece

For Students 3rd - 8th Standards
On this one page website sharpen your logic, division and prime number recognition skills while working on this challenge. The solution is available to double check your solution.
Activity
University of Cambridge

University of Cambridge: Nrich: Making Sticks

For Students 3rd - 8th Standards
On this one page website sharpen your logic, factors, and multiples skills while working on this challenge. The solution is available to double check your solution.

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