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TECH: Measurement: (8th,9th)Strategy Teaching the Ruler

Life Skills:

  • Thinking & Reasoning
  • Communication
  • Employability

Time Frame:
3 class periods that run 45 minutes each.


 

Summary:
The U.S. Customary system and the Metric system are introduced through a Power Point lesson. A series of evaluation tools are provided to teachers to access student understanding of applying measurement with a ruler using the U.S. Customary System. In addition, techniques used to teach the reading of the ruler are given where conventional (fractions) methods are not working for the learner.

Main Curriculum Tie:
Introduction to Construction Technology
Standard 3 Objective 1

Measure using standard construction tools.

Career Connections:

  • All Jobs

Materials:
A classroom set of Architect's scales. Worksheets, Quizzes, and Tests for the entire class. Ability to project a Power Point document.

Background For Teachers:
Although students are exposed to measurement as early as the 3rd grade, exposure does not necessarily mean that students can use or understand the concept of reading the ruler by the time they reach middle/junior high school classes. Many times, students are being asked to apply measurement skills for the first time in the Technology and Engineering classes. Even though the standards and objectives of each cluster area does not all call for an evaluation of measurement skills, it becomes a necessary part of our curriculum as many students are not equipped to succeed in the shop without re-introducing measuring concepts. The following are a series of evaluation materials and techniques to help ensure that students have sufficient knowledge to succeed in the school shop environment.

Student Prior Knowledge:
Math Skills are necessary: 1. To be able to recognize patterns. 2. The ability to count is necessary. 3. Understanding of fractions and reduction of fractions is helpful.

Intended Learning Outcomes:
The ability to read the ruler, and apply this knowledge to measurement technique.

Instructional Procedures:
1st day - Use the Power Point slide show to re-introduce measurement to the students. Each slide must be advanced by the teacher; the content on the slide is automatic. Practice as a class (I use wood blocks that are lettered "A," "B," and "C." I had previously cut the blocks to the exact lengths that I wanted. The students have 3 blocks at each table, and each tables blocks are the same. The 3 blocks are different lengths from one another. The students use architects scales or rulers to measure the lengths and record it on a piece of scratch paper. We then compare answers) and administer 10 question Ruler Quiz. 2nd day - Hand back the graded ruler quiz. Work with individual students that struggled. Review for the Test. 3rd day - Students are required to score a "B" or better on this test. If they don't score well they re-take the test 2 days later. Students that scored well also can re-take the test to try for a better score. There are 2 forms of the same test. Each form is given out to help with those that "strain their necks." 4th day - Hand back and discuss test. The quiz and test are posted under the assessment section.

Attachments

Web Sites

  • 4freefilesharing
    This is a PowerPoint created by a teacher in Prescott Arizona (tom.bockman (at) prescottschools.com) that also goes through the U.S. Customary system (although he does not call it that - it has other visuals that my PowerPoint does not).

Strategies For Diverse Learners:
Informally assign students after the initial quiz to help those that are struggling with those that have it down. Make color copies of the color ruler to hand to a few students that struggle.

Web Sites

  • Funbrain
    This is a web site that reviews students on metric and the U.S. customary system.
  • The ruler game
    This is an on-line game that you can bookmark or put a shortcut on the desktop as a review for students.

Extensions:

Attachments

  • measurementchallenge.pdf
    A measusrement project which came from Davisville Middle school in North Kingstown, Rhode Island.

Assessment Plan:
With the attached quiz there is no minimum score. However, with the tests, this teacher requires a "B" or better. The test is made up of three parts which must be introduced to the students. Part A. Fill in the Blank. The student uses the given ruler to record the distance from "A" which is zero. Part B: Short Answer. Students answer simple measurement questions. Part C: Direct Measurement. Students use an Architects scale or ruler to place distance marks on the given lines. Hand out both forms of the test to reduce the cheating incidents.

Attachments

  • ruler_quiz.pdf
    The initial 10 question quiz used to become aware of students that need extra attention.
  • Measuring_Test_A.pdf
    The first version of the 3 part test. Create an answer key form. Then make an overhead of the second page to grade the direct measurement. Simply lay it over the papers.
  • Measuring_Test_B.pdf
    The second form of the test. It looks identical to the first, but it is not. Create an answer key form. Then make an overhead of the second page to grade the direct measurement. Simply lay it over the papers.

Author:
MICHAEL BREEN

Created Date :
Feb 01 2006 16:04 PM

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