Pathways to CyberInfrastructure



Shodor > CyberPathways > Workshops 2007 > WDHill

Simple Fractions

Topic: Introduction of Fractions
Time Duration:45 minutes of lesson and 15 minutes of class work,
Grades: K-7th

The instructor began class by explaining how to understand the numerator and denominator of a fraction. The numerator was expressed as the portion of a certain group. The denominator was explained to be the number of proportions a item has. For example, if there was one rectangle cut into four equal parts, the denominator would be 4 because it is cut into four proportions. The students participated in constructing fractions. They were given pieces of paper and asked to put them together. The pieces of paper were cut into fractions like 1/2 and 1/3. The instructor explained how to make a whole fraction. The students were given a challenge, after they understood how to construct a fraction and how to distinguish a fraction. The challenge was to identify how many different pieces of candy can be divided into fractions. For example a Kit Kat bar can be divided into 4 pieces, so a whole candy bar could be represented as 4/4. The instructor would then ask, "how many portions does a Kit Kat bar have, if it is divided in half?" The students would reply 2/4. When a student answered the question correctly, they were able to keep that candy to eat.

Not Logged In. Login
©1994-2018 Shodor