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Divisibility Rules
Sixth graders strengthen their knowledge of the divisibility rules. Students access that mental math can be faster than the calculator for certain types of problems.
Students can make generalizations and discover patterns in finding the...
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Divisibility Rules Using Scientific Calculators
Young learners apply divisibility rules to determine if a number is a factor of another number. They discuss what numbers are factors of another number and identify patterns using divisibility rules.
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A Prime Investigation wtih 7, 11, and 13
Ninth graders investigate divisibility rules. In this middle school mathematics/Algebra I lesson, 9th graders explore the divisibility rules of 7, 11, and 13. Students examine certain six-digit numbers that are divisible by 7, 11, and 13.
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Factors, Divisibility, and Relatively Prime
Seventh graders explore the concept of divisibility. In this divisibility lesson, 7th graders use divisibility rules to find factors of numbers. Students create foldables to illustrate divisibility rules.
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TI-82 PROFICIENCY
Young scholars find the proper factors for numbers one through fifty using either the divisibility laws or TI-82. They determine the sum of the proper factors for each number. If the sum of the factors is less than the number itself,...
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Guzzinta
Students explore strategies to solve number problems. They study divisibility rules. Students examine and practice multiples, factors, and palindromes. In groups, students play a "number property" game.
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Arithmetic: Fractions and Percentages
Young mathematicians review the basic operations needed for addition and subtraction of fractions. They review the rules for addition and subtraction of fractions with the same denominator, how to change them if the denominators are...
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Perfect Numbers
Sixth graders classify numbers as abundant, deficient, or perfect based on the relationship between the number and its factors. They review factor game using the completed lab sheet. When playing the factor game which type of numbers...
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PLANETS IN PROPORTION
Students discover scales for both the solar bodies' relative sizes and their distances from the sun. They find equatorial circumference and volumes of their solar bodies. Students apply estimation strategies and proportioanl reasoning to...