The theory of keystone species in an ecosystem was first established in 1969 by Robert T. Paine. Pupils open the final lesson in a five-part series with a game guessing which member of the alpine ecosystem they are based on clues. After...

Assess your learners on the five themes of geography and the most important key terms and concepts from an introductory geography unit. Here you'll find an assessment with 15 fill-in-the-blank and 14 multiple-choice questions, sections...

Teaching learners about latitude and longitude can get a little complicated. Present the concept by first representing it as a graph. Just like finding a location on a graph using the x and y-axis, learners will be able to locate items...

In this finding prime numbers practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.

In this primes and exponents learning exercise, students read about prime numbers and their expressions, then work with a group to complete 6 problems.

Seventh graders solve 10 different problems that include determining the probability of various events described. First, they determine the probability that a marble drawn from a bad will be a specified color. Then, everyone determines a...

In this number theory worksheet, learners study integers and their properties. They explore the Fibonacci Sequence and approximate irrational numbers. This two-page worksheet contains eight problems.

In this math crossword, students use a set of clues and 15 words about number theory and fractions to complete a crossword puzzle. A reference web site is given for additional activities.

In this fractions vocabulary worksheet, students match a set of 15 number theory and fraction vocabulary words with their definitions. Answers are included on page 2.

Students discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite numbers.

Fifth graders use interlocking cubes to build towers to represent factors of numbers and place the towers in the appropriate places on a Tower chart in order to look for patterns. They work in partner groups, and finish by writing...

For this math worksheet, students find the greatest common factor of 18 pairs of numbers. Given the prime factorization of pairs of numbers students find the greatest common factor. Students simplify fractions and rational expressions.

In this SAT worksheet, high schoolers solve 10 multiple choice questions.  Students find ratios, integer relationships, prime numbers, etc.

Students discuss the seven continents of Earth and the diverse geography. After discussion, they create their own paper-mache globes which properly display all seven continents, the equator, and the prime meridian. They conduct research...

In this factors worksheet, middle schoolers list all factors of given numbers.  All numbers are positive and contain two to three digits.  This four-page worksheet contains 28 problems.  Answers are provided.

For this factorization of integers worksheet, student solve and complete 6 various types of problem. First, they write down the factors for each integer and find the prime factorization. Then, students factorize completely and find the...

In this numbers worksheet, 3rd graders fill in a crossword puzzle as they figure out the answers to 7 questions associated with number sets.

In this online index notation worksheet, students fill in the missing powers in four statements, calculate nine math problems, fill in the missing bases and powers in six statements, calculate six higher power equations and fill in the...

In this suffrage worksheet, students investigate the right to vote in the U.K. as they read an article, then respond to 3 short answer questions regarding the topic. Students also read a descriptive selection about prime ministers of the...

In this secondary mathematics activity, students solve a cross number puzzle.  The one page activity contains one problem with the solution. 

In this planetary alignments worksheet, students 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 will align.

In this factors game learning exercise, teams of middle schoolers identify factors.  They find proper factors of a given number  This one-page learning exercise cotnains approximately 40 problems.

In this factor trees worksheet, students make factor trees for 2 through 4 digit numbers. Students complete 20 factor trees for these numbers.