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
1. Get a cup
2. Add 1 teaspoon of coffee to the cup
3. Add water to the kettle
4. Boil the water
5. Add the boiling water to the cup within 2cm of the top
6. Get milk from the fridge
7. Add 1cm depth of milk to the top
8. Stir the coffee
9. Put milk back in fridge

7. Book Activity

8. Write algorithm for reaching the end part
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
Draw a smiling face in triangle of the top 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
Making a computer game is quite a complex problem. You could solve this by breaking it down into smaller tasks.

12. Write algorithm for reaching the end part
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

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

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

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