Learners are tested on their ability to solve mathematical problems dealing with the Hardy-Weinberg principle. There are 7 basic types of Hardy-Weinberg Problems which are randomly chosen by the program. Students sit at the computer...

Fifth graders engage in a "layered" unit of discovery. There are three levels of potential learning opportunities, in the spirit of the 2010 Olympics in Vancouver (bronze, silver, gold). The instructional activity is based upon fractions.

In this multiplication/division alphabetical order worksheet, students alphabetize a set of 12 multiplication/division vocabulary words. Worksheet has links to additional activities.

In this video segment from Cyberchase, Bianca doubles the ingredients in a cupcake recipe that includes fractional amounts.

This site explains how to add mixed numbers that have the same denominator, and includes games to practice this skill.

This site explains how to subtract mixed numbers that have the same denominators. The site provides games to practice this skill.

This site is provided for by Visual Fractions. Add mixed numbers with like denominators using circles. Click on the "Explain" button to understand the answer.

[Free Registration/Login may be required to access all resource tools.] Evaluate numerical expressions with mixed numbers by renaming multiple fractions with a common denominator.

This lesson explains how to change mixed numbers to improper fractions, and includes games to practice this skill.

A mixed number is a whole number plus a fractional part. An improper fraction is a fraction where the numerator (top number) is larger than the denominator (bottom number). You can convert between mixed numbers and improper fractions...

This lesson provides a comprehensive introduction to fractions. Learn about whole numbers, mixed numbers, and reading and writing fractions.

This Math Page tutorial explains how to multiply a number by a fraction or a mixed number and then features a practice exercise.

The rules for subtracting fractions with like or unlike denominators are clearly explained at this website. Even mixed number subtraction is tackled! This is an excellent place to get step by step explanations for working with fractions.

[Free Registration/Login may be required to access all resource tools.] Evaluate numerical and algebraic expressions involving products of mixed numbers.

This WyzAnt applet allows the user to input fractions--improper or mixed numbers--and have the calculator reduce the fraction or convert it into a mixed number. A good resource for checking students work.

Use this interactive site from Visual Fractions to practice subtraction with fractions using circles. You will need to answer the questions with mixed numbers in lowest terms.

This website from Visual Fractions helps you identify the meaning of the numerator, denominator and whole number in mixed fractions by using circles and parts of circles.

Use circles to learn and practice multiplying fractions at this site from Visual Fractions. You will receive immediate feedback on each of your answers, and explanations are available for each question.

[Free Registration/Login Required] This flipchart reviews the meaning of numerator, denominator, mixed number, and improper fraction. Students are introduced to adding like fractions and adding mixed numbers with like denominators using...

This site from the encyclopedia Wikipedia gives the reader excellent insight into the United States economy. Includes historical references, the influence of technology, resources, and the role of government. Includes numerous charts and...

This Math Page tutorial explains how to add and subtract fractions and features a practice section at the very end of the lesson.

This Math Page tutorial explains how to multiply and divide fractions and then features a practice exercise.

This Math Page tutorial explains how to find the percent of a number and features a practice to check comprehension.

Students solve fraction multiplication and division problems. To see the answers, learners need to roll their mouse over the colored area.