1. Topic

Applying addition of fractions to measuring various lengths in metric
units. Measuring various lengths in fractions of a cm. 


2. Content

Addition of fractions with like denominators. Changing improper
fractions to mixed numbers. Reviewing meters, centimeters, millimeters.
Learning how to measure lengths in fractions of a centimeter. Vocabulary:
metric system, cm, and mixed numbers. 


3. Goals: Aims/Outcomes

1.To be able to measure to the exact millimeter using a ruler.
2.To learn in metric we normally don't simplyfy the fraction.
3.To order fractions from the least to the greatest.
4.To be able to measure to a fraction of cm using a metric ruler.
5.To learn in metric we normally don't simplify the fraction. 


4. Objectives

1.To familiarize students with measuring in metric the Great Span
and the cubit to nearest whole cm and mm.
2.To collect the data and organize it from the least to the greatest
distance.
3.To compute the range and sum the data.
4.To familiarize students with measuring in metric using the Great
Span and the cubit to a fraction of a cm. 


5. Materials and Aids

paper, pencil, metric ruler, smart board with metric ruler. 


6. Procedures/Methods

A. Introduction
1. Discussing with students how metric is used in almost every country
in the world, in science text books, and on most of our products.
2. Giving an overview of our focus and goals.



B. Development
1. We will discuss measuring with a ruler. Zero edge placement.
2. Observe various cm and mm measurements on smart board ruler.
3. What is the Great Span and a Cubit?
4. Demonstrating how to measure each.
5. How to record your sections data.
6. Computing the range and summing the data. 


C. Practice
1. Students will meet in sections and begin measuring their Great
Spans to nearest millimeter.
2. Students will enter data which will be gathered by sections and
put on the smart board from the least to the greatest.
3. Students will complete a worksheet measuring to a fraction of a
cm. 


F. Checking for understanding
1. Observing students measuring in their sections.
2. Observe data written in sections.
3. Observe students entering data on smart board. 


G. Closure
1. Follow up the next day using data to find classes range, mode,
and median. 


7. Evaluation

1. Were students able to compute to the exact millimeter?
2. Were students able to add fractions and find the range?
3. The worksheet should indicate how well students can measure to
a fraction of a cm. 

