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Term 3 Topic 1 Lesson 1 Introduction

Term 3 Topic 1 Lesson 1 Introduction. Learning Intention: Today we are learning about: 1- What are indices? 2- Multiplication of indices. 1- prior knowledge activity (only the first column in class . The rest for homework. 2- What are indices (smart note book slides) 3- multiplication.

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Term 3 Topic 1 Lesson 1 Introduction

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  1. Term 3 • Topic 1 Lesson 1 Introduction

  2. Learning Intention: Today we are learning about: 1- What are indices? 2- Multiplication of indices. 1- prior knowledge activity (only the first column in class . The rest for homework. 2- What are indices (smart note book slides) 3- multiplication.

  3. Maths in our daily life • Today in maths the teacher asked her students the following question: • Which would you prefer: • To have $100 deposited into your bank account immediately? • To have I cent deposited into your bank account immediately, and each day have this amount doubled for a period of one fortnight? • Some students tried to guess the answer and some started some calculations. 1x2x2x2x2x2x2x2x2x2x2x2x2x2x2 Is there a better way to write this? = 16 384 cents ÷100 =$ 163.84 Students found that the second option was better. 214

  4. MATHS AND SCIENCE • Today in science the teacher asked her students about the speed of light . One of the students came up to the board and wrote : • 300 000 000 m/s. The teacher told her students that there is an easier way to write this number. 3x108 m/s Scientists use a method that uses a power of 10. It is called scientific notation or standard form.

  5. In this topic we are learning about : Indices And Scientific notation

  6. Notes Law1: When multiplying terms with the same base, add the powers. am x an=a m + n Example: 24 x 23=2 4+ 3 =27 Law2: When dividing terms with the same base, subtract the powers. am ÷an=a m – n Example: 57÷54 = 5 7 – 4 =53

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