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Week 2
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Make the Turtle Move with different inputs and to display outputs
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Objectives
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- Familiarization of ways of defining parameters - movement, co-ordinates and colour
- Visualize space, co-ordinates and shapes through movement and vice versa
- Deconstruct the logic in a sequence of instructions
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Hands-on Activity
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Activity #1 (Part A)
- Make the turtle move to a given co-ordinate position; turtle can be moved by specifying the end position also
- Demonstrate movements of the turtle using the angle block
- What does the radius mean? What does the angle instruct the turtle?
- To draw a circle, what would you instruct the turtle?
- See the picture here. What should have been the commands? (Hint : it involves co-ordinates and angles)
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Screenshot of Part-A and Part-B
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![Co-ordinate position.png](/KOER/en/images/thumb/c/c9/Co-ordinate_position.png/200px-Co-ordinate_position.png)
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Hands-on Activity
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Activity #1 (Part B)
- The Turtle can also display outputs using the Print block from the extra options palette.
- The Turtle can be used to label a figure, using the Show block to be found on main palette.
- The Turtle block to be found on extra options palette allows you to change the colour of the Turtle
- Here is a piece of programming to show how to print and how to change the colour of the Turtle and label a text.
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Screenshot of Part-B
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![Olour of the Turtle and label a text.png](/KOER/en/images/thumb/a/ac/Olour_of_the_Turtle_and_label_a_text.png/300px-Olour_of_the_Turtle_and_label_a_text.png)
Guess why the text “Square” appears 4 times. What can you do to avoid it?
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Hands-on Activity
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Activity #1 (Part C)
- Fun with changing colours and shapes
- Use the command heading
- Make the students draw shapes, vary colour
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Screenshots for Part C
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![Fun with changing colours and shapes 1.png](/KOER/en/images/thumb/0/00/Fun_with_changing_colours_and_shapes_1.png/200px-Fun_with_changing_colours_and_shapes_1.png) ![Fun with changing colours and shapes 2.png](/KOER/en/images/thumb/b/b3/Fun_with_changing_colours_and_shapes_2.png/200px-Fun_with_changing_colours_and_shapes_2.png)
![Fun with changing colours and shapes 3.png](/KOER/en/images/thumb/f/fa/Fun_with_changing_colours_and_shapes_3.png/200px-Fun_with_changing_colours_and_shapes_3.png) Ask the students to work with more Turtle cards - http://wiki.sugarlabs.org/go/Activities/Turtle_Art
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Hands-on Activity
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Portfolio components (Part D)
- Ask students to construct circle of different radii
- Construct the following nested circles and explore further such creations using Angle, Co-ordinates, Left, Right, Backward, Forward, etc
- What commands did you use? Are there any different ways of doing this?
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Screenshots for Part D
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![Onstruct circle of different radii.png](/KOER/en/images/thumb/e/ef/Onstruct_circle_of_different_radii.png/200px-Onstruct_circle_of_different_radii.png)
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