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To measure accurately

Module by: Siyavula Uploaders. E-mail the author

NATURAL SCIENCES

Matter, measuring and reactions

EDUCATOR SECTION

Memorandum

With the first reading an error of parallax is made. Sketch (b) is therefore accurate. Accept learner's wording, e.g. the scale has to be close to the place of measurement, etc.

LEANER SECTION

Content

ACTIVITY: To measure accurately [LO 1.2]

  • Which of the following illustrations shows a correct measuring technique?

Figure 1
Figure 1 (graphics1.png)

Explain:

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When your eye is not in line with the scale divisions of a measuring instrument, an error of parallax occurs.

Assessment

Learning Outcome 1: The learner will be able to act confidently on curiosity about natural phenomena, and to investigate relationships and solve problems in scientific, technological and environmental contexts.

Assessment Standard 1.2: We know this when the learner conducts investigations and collects data: organises and uses apparatus/equipment or sources to gain and record information.

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Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual member, a community, or a respected organization.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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