Repetition in shapes (year 4)

Draw a box around the part of the pattern that repeats, eg

 

[⭐⭐⭐🌙🌙]⭐⭐⭐🌙🌙⭐⭐⭐🌙🌙⭐⭐⭐🌙🌙⭐⭐⭐🌙🌙

              ×5

Draw the output for this algorithm as pictures:

Repeat 3 times

Draw ⬜ ⬜ ⬜🔷

     

Following a ‘pen down’ command (PD), which of these commands would draw the longest line?

• FD 10

• LT 90

• FD 50

• LT 20

Which of these is an example of a count-controlled loop? (Only one answer is correct.)

• FD 100 RT 90 FD 100 RT 90

• REPEAT 2 [FD 100 RT 90]

• FD 100 FD 100 FD 100 FD 100

Following a ‘pen down’ command (PD), which of these code snippets would draw a square?

• REPEAT 3 [FD 100 RT 120]

• REPEAT 4 [FD 100 RT 90]

• REPEAT 4 [FD 90 RT 100]

• REPEAT 4 [FD 100 RT 45]

Why doesn’t this code for a triangle work? (Only one answer is correct.)

 

REPEAT 3 [FD 100 RT120]

• A command is spelt incorrectly

• A space is missing

• There should be a 4 after REPEAT

• The value after FD is incorrect

Draw the output of this code.

 

REPEAT 2 [FD 5 RT 90 FD 2 RT 90]

Match the code below to the algorithm for an octagon:

Repeat 8 times

Draw a side 50 long

                                           Turn 45 degrees

• REPEAT 8 [FD 45 LT 90]

•   REPEAT 45 [FD 8 RT 50]

• REPEAT 8 [FD 50 RT 45]

• [REPEAT 8 FD 50 RT 45]

What would be a sensible name for this procedure, which draws a triangle?

 

TO (a)  

REPEAT 3 [FD 100 RT 120]

END

This is a  procedure for… (Only one answer is correct.)

TO ***********

repeat 6 [fd 100 rt 60]

END

• A square

• A hexagon

• A decagon

• A rectangle