S104 Intro Oct 09

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Information about S104 Intro Oct 09

Published on October 9, 2009

Author: jobadge

Source: slideshare.net

Description

Introduction to S104 Exploring Science with the Open University

S104 Exploring Science October 2009

S104: Exploring Science Course Structure and Purpose Learning Outcomes Assessment Support

Course Structure and Purpose

Learning Outcomes

Assessment

Support

S104 components and structure Course guide and the rest are…..check out the guide!

Course guide

and the rest are…..check out the guide!

S104 components and structure Course guide Course texts (8) Course website Interactive study calendar DVD Tutor group forum Practical kit

Course guide

Course texts (8)

Course website

Interactive study calendar

DVD

Tutor group forum

Practical kit

 

 

 

 

S104 Learning Outcomes Knowledge and Understanding (Kn) Cognitive (C) Key Skills (Ky) Practical Skills (P)

Knowledge and Understanding (Kn)

Cognitive (C)

Key Skills (Ky)

Practical Skills (P)

S104 Assessment 7 TMAs (tutor marked assignments) eTMA encouraged 9 iCMAs (interactive computer marked assignments) completed online. 1 ECA (end of course assignment) (20%)

7 TMAs (tutor marked assignments)

eTMA encouraged

9 iCMAs (interactive computer marked assignments) completed online.

1 ECA (end of course assignment) (20%)

S104 Assessment Part 1 different weightings - page 9 course guide Part 2 iCMA 49 and ECA Pass/Fail distinction “grade”

Part 1

different weightings - page 9 course guide

Part 2

iCMA 49 and ECA

Pass/Fail

distinction “grade”

S104 assessment cont’d Learning Outcomes focus Full continuous assessment OpenMark iCMAs synoptic end of course assignment

Learning Outcomes focus

Full continuous assessment

OpenMark iCMAs

synoptic end of course assignment

TMA and iCMA top tips Try to do the activities Get to know your TMA Use the glossary and index to decode the question Good academic practice Contact your tutor Feedback on TMAs iCMAs, pacing and learning

Try to do the activities

Get to know your TMA

Use the glossary and index to decode the question

Good academic practice

Contact your tutor

Feedback on TMAs

iCMAs, pacing and learning

 

 

 

 

S104 academic support your tutor Tutor group forum for academic and moral support from fellow students and your tutor Face to face tutorials

your tutor

Tutor group forum

for academic and moral support

from fellow students and your tutor

Face to face tutorials

OU general support The Regional Centre Learner support Careers References Course Choice advice Your student “home” page Page 26 in your course guide: problems and who to contact

The Regional Centre

Learner support

Careers

References

Course Choice advice

Your student “home” page

Page 26 in your course guide: problems and who to contact

S104 Exploring Science October 2009

scientific notation A fine and useful thing! but What is it? How do you do it? Why do you do it?

A fine and useful thing!

but

What is it?

How do you do it?

Why do you do it?

scientific notation A notation that represents any number by expressing it as a number between 1 and 10 multiplied by a simple power of ten. Thus 1.30 × 10 3 is in scientific notation (because 1.3 is between 1 and 10), but 0.130 × 10 4 and13.0 × 10 2 are not.

A notation that represents any number by expressing it as a number between 1 and 10 multiplied by a simple power of ten.

Thus 1.30 × 10 3 is in scientific notation (because 1.3 is between 1 and 10),

but 0.130 × 10 4 and13.0 × 10 2 are not.

scientific notation Scientific notation requires the number accompanying the power of ten to be   less than 10 but equal to or greater than 1

Scientific notation requires the number accompanying the power of ten to be

 

less than 10 but equal to or greater than 1

scientific notation A positive power of 10 indicates how many times a number has to be multiplied by ten to make the final number 1 x 10 3 = 1 x 10 x 10 x 10 = 1 000 OR how many times the decimal point has to be moved to the right to make the final number 1.000 x 10 3 = 1 000

A positive power of 10 indicates how many times a number has to be multiplied by ten to make the final number

1 x 10 3 = 1 x 10 x 10 x 10 = 1 000

OR

how many times the decimal point has to be moved

to the right to make the final number

1.000 x 10 3 = 1 000

scientific notation A negative power of ten denotes how many times a number has to be divided by 10 to make the final number 10 -3 = 1 = 1 = 0.001 10 x 10 x 10 1 000 OR how many times the decimal point has to be moved to the left to make the final number 001.0 x 10 -3 = 0.001

A negative power of ten denotes how many times a number has to be divided by 10 to make the final number

10 -3 = 1 = 1 = 0.001

10 x 10 x 10 1 000

OR

how many times the decimal point has to be moved

to the left to make the final number

001.0 x 10 -3 = 0.001

Notable partners Confidence line

Confidence line

Notable calculations In pairs: Each write down 4 large numbers, swop papers and convert to scientific notation Each write down 4 very small numbers, swop and convert Worksheet ‘using scientific notation’ Using calculators Checking answers

In pairs:

Each write down 4 large numbers, swop papers and convert to scientific notation

Each write down 4 very small numbers, swop and convert

Worksheet ‘using scientific notation’

Using calculators

Checking answers

Evaluate, writing your answers in scientific notation:   (a) (2 × 10³) × (9 × 10 -2 )   (b) (6 × 10 -3 ) ÷ (3 × 10 -5 )   (c) (2.1 × 10²) ÷ (4.2 × 10 -2 )   Work them out without your calculator, and then use your calculator to check your answers.

Evaluate, writing your answers in scientific notation:

 

(a) (2 × 10³) × (9 × 10 -2 )

 

(b) (6 × 10 -3 ) ÷ (3 × 10 -5 )

 

(c) (2.1 × 10²) ÷ (4.2 × 10 -2 )

 

Work them out without your calculator,

and then use your calculator to check your answers.

rules When multiply ADD powers When dividing SUBTRACT powers

When multiply ADD powers

When dividing SUBTRACT powers

(a) (2 × 10³) × (9 × 10 -2 ) (2 × 9) × 10 3+(-2) = 18 × 10 1 = 1.8 × 10²

(a)

(2 × 10³) × (9 × 10 -2 )

(2 × 9) × 10 3+(-2) = 18 × 10 1 = 1.8 × 10²

(b) (6 × 10 -3 ) ÷ (3 × 10 -5 ) (6 ÷ 3) × 10 -3-(-5) = 2 × 10 2

(b)

(6 × 10 -3 ) ÷ (3 × 10 -5 )

(6 ÷ 3) × 10 -3-(-5) = 2 × 10 2

(c) (2.1 × 10²) ÷ (4.2 × 10 -2 ) (2.1 ÷ 4.2) × 10 2-(-2) = 0.5 × 10 4 = 5 × 10³

(c)

(2.1 × 10²) ÷ (4.2 × 10 -2 )

(2.1 ÷ 4.2) × 10 2-(-2) = 0.5 × 10 4 = 5 × 10³

A topical theme Uncertainty!

Uncertainty!

SI units An abbreviation for the Système International d’Unités (International System of Units). SI units are used by scientists all over the world to make measurements according to agreed standards. Examples of SI units are the kilogram (kg) for mass, the metre (m) for length, and the second (s) for time.

An abbreviation for the Système International d’Unités (International System of Units). SI units are used by scientists all over the world to make measurements according to agreed standards. Examples of SI units are the kilogram (kg) for mass, the metre (m) for length, and the second (s) for time.

convention An adopted rule that is then followed by the scientific community. For example, it is a SI convention (as in SI units) to label the axes of graphs with, e.g., ‘temperature/°C’ rather than ‘temperature (°C)’.

An adopted rule that is then followed by the scientific community. For example, it is a SI convention (as in SI units) to label the axes of graphs with, e.g., ‘temperature/°C’ rather than ‘temperature (°C)’.

experimental uncertainty A type of uncertainty derived from the equipment or method being used to make measurements. Experimental uncertainty may lead to random uncertainties or systematic uncertainties.

A type of uncertainty derived from the equipment or method being used to make measurements. Experimental uncertainty may lead to random uncertainties or systematic uncertainties.

random uncertainty A type of uncertainty derived from a measured quantity fluctuating about a mean value, i.e. many measurements being scattered fairly randomly about a mean value. The larger the random uncertainty associated with a measurement, the larger the scatter. Compare with experimental uncertainty, systematic uncertainty.

A type of uncertainty derived from a measured quantity fluctuating about a mean value, i.e. many measurements being scattered fairly randomly about a mean value. The larger the random uncertainty associated with a measurement, the larger the scatter. Compare with experimental uncertainty, systematic uncertainty.

systematic uncertainty A type of uncertainty arising from the presence of (usually unknown) systematic errors associated with a measurement. Compare with random uncertainty.

A type of uncertainty arising from the presence of (usually unknown) systematic errors associated with a measurement. Compare with random uncertainty.

significant figures The number of digits you quote when you write down the value of a quantity that has been measured with a degree of uncertainty. For example, 10.2 cm is quoted to 3 significant figures and this means that there may be some uncertainty in the final digit, but the other digits are certain. The larger the number of significant figures quoted for a value, the smaller the uncertainty in that value.

The number of digits you quote when you write down the value of a quantity that has been measured with a degree of uncertainty. For example, 10.2 cm is quoted to 3 significant figures and this means that there may be some uncertainty in the final digit, but the other digits are certain. The larger the number of significant figures quoted for a value, the smaller the uncertainty in that value.

High accuracy, low precision

High precision, low accuracy

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