Unit EQ: What skills are basic necessities for understanding technology?
LEQ: How do you measure something with an English Ruler?
Activating Strategies: Hand out rulers to students and have them measure the length of their pencil. Ask someone how long their pencil is. Discuss what people came up with and when was the last time they used a ruler.
Teaching Strategies and Distributed Guided Practice/Summarizing Prompts:
Remind students what the difference is between English and Metric Systems. Metric is based on decimals, and English is based on fractions. Take a pole to see which system they think is easiest and ask why?
Use the following web site on the SMART Board: Zoom in very close and show the various sizes of spaces and discuss how a ruler is designed: length of lines, number of divisions, labeling, etc.
A ruler marked in 8ths. Every mark is 1/8th of an inch.
English Ruler
A ruler marked in 16ths. Every mark is 1/16th of an inch.
The next smallest marks on a ruler are 1/4ths.
Ruler marked in 1/4ths
The red marks on these rulers are at 1/4, 1/2, 3/4, and 1. (1/2 is the same as 2/4)
Ruler marked in 1/4ths
The next smallest marks on a ruler are 1/8ths.
The red marks on these rulers are at 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, and 1.
Ruler marked in 1/8ths
Ruler marked in 1/8ths
The next smallest mark, if there are any, are 1/16ths.
The red marks on this ruler are at 1/16, 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, and 1.
Ruler marked in 1/16ths
Teach students the three steps of how to read a ruler.
1. Find the nearest whole inch
2. Count the SPACES from the whole inch up to the measurement.
3. Reduce the Fraction.
Hand out the ruler worksheet and let the students attempt it.
Give the answers and divide the room into 2 groups.
Have each group send up their champion (elected by vote) who got one hundred percent on the worksheet.
Have students use the following web site to compete against each other to see who is the best measurer.
who can get the most right without one error. Cheer on your champ!
Have each student use the rickyspears.com site at their own PC for the remainder of the period
Measurement
Remind students what the difference is between English and Metric Systems. Metric is based on decimals, and English is based on fractions. Take a pole to see which system they think is easiest and ask why?
Use the following web site on the SMART Board: Zoom in very close and show the various sizes of spaces and discuss how a ruler is designed: length of lines, number of divisions, labeling, etc.
http://www.onlineconversion.com/faq_05.htm as seen below:
Take a look at the following English Rulers.
A ruler marked in 8ths. Every mark is 1/8th of an inch.
A ruler marked in 16ths. Every mark is 1/16th of an inch.
The red marks on these rulers are at 1/4, 1/2, 3/4, and 1. (1/2 is the same as 2/4)
The red marks on these rulers are at 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, and 1.
The red marks on this ruler are at 1/16, 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, and 1.
Teach students the three steps of how to read a ruler.
1. Find the nearest whole inch
2. Count the SPACES from the whole inch up to the measurement.
3. Reduce the Fraction.
- Hand out the ruler worksheet and let the students attempt it.
- Give the answers and divide the room into 2 groups.
- Have each group send up their champion (elected by vote) who got one hundred percent on the worksheet.
- Have students use the following web site to compete against each other to see who is the best measurer.
- who can get the most right without one error. Cheer on your champ!
- Have each student use the rickyspears.com site at their own PC for the remainder of the period
The link is available on our moodle site.http://www.rickyspears.com/rulergame/
Summarizing strategies: