Remember: A shape is move and turn, repeated. The turns of a closed shape add up to 360 degrees, so a square turns 90 degrees four times.
Read and answer
Read the story, then answer.
The square with a gapNoor knelt on the sidewalk and drew a big square with chalk. She drew one side, turned at the corner, and drew the next, four times round. At Code Club she found the pen blocks. Pen down means draw, and pen up means move with no line. Her sprite was a little pencil. Noor built a stack: repeat four times, move a hundred steps, turn eighty degrees. Whoosh! The pencil drew four sides, but the last line missed the first one, and there was a gap. Ms. Ade drew a square corner like a book's and said, "That is ninety degrees. A full spin is three hundred sixty, and four turns of ninety make one." Noor changed eighty to ninety, and click! The last line met the first. It was a perfect square.
1
Noor runs this stack. How many sides does the pencil draw?
364
2
Turning ninety degrees four times closes a .
squarehexagontriangle
3
Noor turns 80 degrees at every corner, four times. How many degrees do the turns add up to?
360320400
4
Pen up draws a line as the pencil moves.
TrueFalse
5
Which stack draws a triangle?
Stack AStack BStack C
6
Join each shape to the turns that draw it.
1a square
2a triangle
3a hexagon
A4 turns of 90 degrees
B6 turns of 60 degrees
C3 turns of 120 degrees
7
A full spin is degrees.
Order, fix and stretch
8
Put what happened to Noor's square in order.
The last line misses the first one
Noor changes 80 to 90
Ms. Ade shows a square corner of 90 degrees
The last line meets the first and the square closes
Noor builds a stack that turns 80 degrees
9
This stack leaves a gap. What is the mix-up to fix?
The turn should be 90 degrees, not 80The pen should be upIt should repeat 5 times
10
Noor wants to move her pencil to a new spot without drawing a line. Which block goes first?
✏️pen down🔁repeat 4 times✋pen up
11
Noor's hexagon has 6 turns of 60 degrees. How many degrees do the turns add up to?
300420360
12
Write the steps for walking a square on the floor. Use the words move and turn.
13
Draw the square the pencil makes. Mark each corner where it turns.
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Answer key · Set A
Noor's pencil draws
14 Repeat 4 times draws 4 sides, with a turn after each one.
2square Four turns of 90 degrees make a full spin, so the last line meets the first and the square closes.
3320 80 + 80 + 80 + 80 = 320. That is less than a full spin of 360, so the square leaves a gap.
4False Pen up moves the pencil with no line. Pen down is the block that draws.
5Stack B Three turns of 120 degrees close a triangle. Four turns of 90 draw a square, and six turns of 60 draw a hexagon.
61-A, 2-C, 3-B Each shape's turns add up to a full spin of 360 degrees.
7360 A full spin is three hundred sixty degrees, and the turns of a closed shape add up to it.
82, 4, 3, 5, 1 Noor saw the gap first, learned about ninety degrees, changed the turn, and then the square closed.
9The turn should be 90 degrees, not 80 Four turns of 80 add up to 320, which is not a full spin. Four turns of 90 add up to 360.
10pen up Pen up lets the pencil move with no line.
11360 6 × 60 = 360, a full spin, so the hexagon closes.
12Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.