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ICT at key stages 1 and 2    (Year 4)

Unit 4E: Modelling effects on screen
Section 2: SHORT FOCUSED TASKS

QCA

Objectives
Children should learn:
  • key idea: that the screen turtle obeys the same language commands as the floor turtle
  • technique: to type commands in immediate mode

Activities

Outcomes
Children:
  • Prepare a worksheet with a few simple sequences on it. These could include:
    • forward 100, right 90, forward 100, left 90, forward 100, right 90; forward 100, left 90, forward 100, right 90, forward 100, left 90;
    • forward 150, right 90, forward 150, right 90, forward 150, right 90, forward 150, right 90;
    • right 90, forward 50, left 90, forward 50, left 90, forward 50, right 90, forward 50, right 90, forward 50;
    • forward 200, right 120, forward 200, right 120, forward 200, right 120.
    Ask the children to predict what will appear on screen when these instructions are entered and give them a chance to work in pairs at the computer to test their hypotheses. Remind them to send the turtle 'home' before beginning each set of instructions.
  • recognise that commands typed in LOGO are in the same language as they have been using with the floor turtle
  • recognise that the screen turtle reacts with the same movement that is shown by the line it draws

Points to note
Children will need to think about a starting point and the orientation on the screen. Children will need to know about the correct spacing and spelling of commands. Children may make typing mistakes that result in error messages. They will recognise the frustration in having to repeat all the commands again to achieve their results.

The work could be extended to allow pupils to change the numbers and find out what happens.

Sections in this unit

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This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.
1. SETTING THE SCENE
2. SHORT FOCUSED TASKS
3. SHORT FOCUSED TASKS
4. SHORT FOCUSED TASKS
5. SHORT FOCUSED TASKS
6. SHORT FOCUSED TASKS
7. INTEGRATED TASK