Lesson Category: Form 3

Lesson 2: A Negative Index

Objectives At the end of this lesson, students should be able to: Use the standard form A × 10n where n is a positive or negative integer and 1 < A < 10 Change numbers into standard form and vice versa A negative index is used when writing a number between 0 and 1 in …

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Lesson 1 – Positive index

Objectives At the end of this lesson, students should be able to: Use the standard form A × 10n where n is a positive or negative integer and 1 < A < 10 Change numbers into standard form and vice versa Standard form is also known as standard index form or sometimes as scientific notation. …

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Lesson 5: Limits of Accuracy

Objectives At the end of the lesson, students should be able to: Give appropriate upper and lower bounds for data to a specified accuracy. Numbers can be written to different degrees of accuracy. For example, 3.5 ,3.50 and 3.500 appear to be the same but they are not the same because they are written to …

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Lesson 2: Rounding Decimals

Objective At the end of the lesson, students should be able to: Give approximations to specified decimal places (D.P) A number can be approximated to a given number of decimal places (dp). When a number is written in decimal form, the digits to the right of the decimal point are called decimal places. This also …

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