Activity
Illustrative Mathematics

Zeroes and factorization of a non polynomial function

For Teachers 10th - 12th Standards
Functions behaving badly: the squaring function and the absolute value function are both zero at x=0. Yet when you divide each by x, different things happen. Here, your class will explore each scenario as a means to adding depth to their...
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
National Council of Teachers of Mathematics

The Math Forum: Beat the Calculator: Adding Even Numbers

For Students 4th - 6th Standards
Can you beat the calculator? Your task is to find the sum of all even numbers between two and any selected two-digit even number. If you can find the number pattern, you are sure to beat the calculator every time. Links to other "Beat...
Activity
AAA Math

Aaa Math: Ratios

For Students 3rd - 8th Standards
This resource describes how to calculate ratios and provides an opportunity for students to practice the skill.