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Design and Technology

This lesson introduces key concepts in design and technology such as algorithms, decomposition, and flow charts. Activities include defining algorithms, practicing tasks, and creating flow charts. Students will learn how to break down problems into smaller parts and represent solutions diagrammatically.

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Design and Technology

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  1. Design and Technology Academic Year 2017/2018 Grade 7 First Semester

  2. What we will learn today Lesson Objectives: • Define Algorithm , Decomposition and flow charts • Practice all the terms through different activities

  3. Algorithm

  4. Algorithm • is a list of steps you give to computers to solve a problem or get something done

  5. Algorithm for making a cup of coffee: Discuss

  6. Algorithm for making a cup of coffee: Discuss

  7. Book Activity

  8. Group Activity Write algorithm for reaching the end part Move Forward (4) Turn Right Move Forward (3) Turn Left Move Forward (2)

  9. Draw a smiling face in triangle of the top side of the page Game / Book Activity Write your best friend name in the triangle of the right –hand side of the page

  10. Decomposition • When you break a problem down into smaller parts to make it easier to tackle / Solve

  11. Making a computer game is quite a complex problem. You could solve this by breaking it down into smaller tasks.

  12. Group Activity Write algorithm for reaching the end part

  13. Flow charts • A flowchart is a diagram that represents a set of instructions. Flowcharts normally use standard symbols to represent the different types of instructions. These symbols are used to construct the flowchart and show the step-by-step solution to the problem.

  14. Flow chart

  15. Group Activity Draw the flow chart for the login process

  16. Group Activity Write algorithm and draw a flow chart for brushing your teeth

  17. Algorithm for brushing teen Put toothpaste on toothbrush Brush teeth If your tooth clean Return tooth brush Else brush teeth again

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