How many great, great grandchildren can one have? Scholars estimate the number of descendants a woman can have after 110 years. They use information about the average number of children per family and life expectancy to make this estimate.

The risk of contracting an infection in the hospital is low, but it does happen. Learn what risk factors have the highest correlation with hospital-acquired infections in the final lesson of a three-part series. Using the open source R...

Looking to support your young mathematicians with mastering their multiplication facts? Then this set of multiplication charts is a great place to start, allowing children to visualize the the relationships between factors and multiples.

Fifth graders complete activities related to prime and composite numbers. In this prime lesson, 5th graders make a hundreds chart with all the prime numbers. They create their own card game which deals with prime and composite...

In this least common multiple worksheet, learners write numbers as a product of primes to determine the least common multiple. Explanations and examples are provided. This two-page worksheet contains ten problems.

For this multiplication worksheet, students use mental math strategies to multiply 2 digit numbers together. Students complete 7 problems.

In this lowest common multiples worksheet, students create factor trees to find the lowest common multiple of 3 numbers. Students complete 4 problems.

In this least common multiples learning exercise, 8th graders solve 20 different problems that include determining the least common multiple for each set of numbers. They first list the prime factors of each number given in the...

In this greatest common factor and division worksheet, students answer word problems about the greatest common factor and division of numbers. Students complete 10 multiple choice questions.

In this online interactive math skills learning exercise, students solve 10 multiple choice math problems regarding factors and prime numbers. Students may submit their answers to be scored.

In this least common multiple practice instructional activity, students sharpen their problem solving skills as they solve 6 story problems.

In this factorization pre-test learning exercise, students solve ten multiple choice questions by finding the least common multiple. This is an interactive learning exercise.

In this number sense worksheet, 5th graders solve 37 problems based on a given number. Students are asked to round the number, identify the number as even or odd and add 100 to the number.

In this algebra learning exercise, students add and subtract rational expressions using the LCM. They combine like denominators before they add and subtract the expressions. There are 8 questions.

In this rational expression activity, learners add and subtract fractional expressions. They completely factor the numerator and denominator. Explanations and examples are provided at the beginning of the document. This two-page...

Students identify the different factors affecting the size and shape of ocean waves. In this math lesson, students calculate wave speed and wavelength given a mathematical formula.

In this complex fractions worksheet, 9th graders solve 10 different problems that include simplifying various complex fractions. First, they create one single fraction in the numerator and then in the denominator. Then, students rewrite...

In this adding and subtracting fractions worksheet, students solve 5 sets of problems related to the adding and subtracting of fractions. First, they identify that each fraction has a common denominator and then simplify by adding or...

Seventh graders use their knowledge of multiplication and problem solving to determine the total weight of multiple objects. In this multiplication instructional activity, 7th graders weigh various manipulatives, record the weight, and...

In this planetary alignments instructional activity, learners use 2 different methods to find out when planet alignments will occur. They use a three number series and they use least common multiples to find out when Mercury and Venus...

Learners explore multiplication. In this multiplication problem solving activity, students view a video clip which demonstrates loading a truck with packages.  Learners fill in a blank array to represent 1"X 2" and the multiples...

In this relating GCF and LCM for Grade Six worksheet, 6th graders answer ten multiple choice questions about factors and multiples, with answers available onscreen.

Solve polynomial equations of degree using different theorems and apply the zero factor theorem for unknown numbers in a quadratic equation. Also use the discriminate to find out the kind of solutions to given quadratic equations shown.

Mathematicians show their understanding of a division problem. If a student can apply long division to a pair of numbers and determine a quotient, what other factors and multiples become apparent? The example illustrates a simple...