Introduction to Scratch

Introduction to Scratch

Sequencing

Think. Pair. Share.

Think of different examples of where instructions need to be carried out in the correct sequence.

Dan: - Register, come in in silence think for 2 minutes about examples of sequencing

In your groups, give real-life examples of instructions that need to be carried out in sequence.

Learning Objectives & Outcomes

All: Understand the concepts of seqencing, selection and iteration

Most: Will start to explore these concepts in scratch

Some: create a basic scratch program

The Robot and the Computer

Random student selected - spinner.

Said student leaves the room.

Teacher explains to the rest of the class for the robot to follow and the students, in turn act as the computer and give instructions one by one.

Other teacher to be with robot explaining situation.

Did the robot successfully complete the path around the room?

1 min

Was there any confusion for the robot? Why do you think this was?

www.bbc.co.uk

lock screens, show on all.

Question: What instruction could we add to the sequence to make the route better?

Cold Call

Selection

Think. Pair. Share.

Think of different examples where depending on choices the outcome will be different.

Talon - Think for 1 min

In your groups, give real-life examples of where you outcomes are different depending on your choices

robot, into wall, if wall turn.

Iteration (looping)

Think. Pair. Share.

Think of different examples where things you do in life have to be repeated.

Think for 1 min

In your groups, give real-life examples of where you things are repeated a set number of times.

Question: How can we use iteration (loop) to make our robot dizzy?

Cold Call

scratch.mit.edu

model and allow students do each section one at a time

10 minute

Iteration is...

The series of steps that need to be done order.

Deciding what to do depencing on different situations

Looping instructions

Repeating a sequence of steps depending on given instructions

Hinge - Correct answer is D,

A is Sequencing

B is Selection

C is a non developed answer