Collection of free math lessons for the following topics -*4**5*Lesson 1: Introducing Fractions*6**4**4*1: Introducing Fractions (2:42 min.)*4*This lesson introduces the concept of fractions as being part of one whole unit. It illustrates how numerators and denominators are used when writing and saying fractions.*4**4**5*Lesson 2: Equivalent Fractions*6**4**4*2: Equivalent Fractions (3:41 min.)*4*The concept of equivalency of fractions is explored with examples of finding equivalent fractions by multiplying and dividing the numerator and denominator by the same number.*4**4**5*Lesson 3: Common Denominators*6**4**4*3: Common Denominators (4:10 min.)*4*The need for and use of common denominators are discussed in this brief lesson. Guidance on how to find common denominators using least common multiples is shown.*4**4**5*Lesson 4: Adding and Subtracting Fractions*6**4**4*4: Adding and Subtracting Fractions (3:46 min.)*4*Examples are illustrated showing how to add and how to subtract fractions. These include adding and subtracting fractions with both the same denominator and with different denominators.*4**4**5*Lesson 5: Simplifying Fractions*6**4**4*5: Simplifying Fractions (3:12 min.)*4*Two different methods of how to simplify fractions are shown. One involves dividing the numerator and denominator by their greatest common factor.*4**5*Lesson 6: Mixed Numbers and Improper Fractions*6**4**4*6: Mixed Numbers and Improper Fractions (4:12 min.)*4*The final lesson in the series covers when to use mixed numbers and when to use improper fractions.*4*It shows the steps to convert between both formats.*4**4*Very useful collection of free math lessons for teachers of Math/Mathematics.