Week 04 · Loop Logbooks
Tuesday
Say it every lap
// Track a box through every lap
⏱ about 15 min
Say it every lap!
Rocket wants to hear the auto-pilot count.
He puts a say line inside the loop.
Now Nova will speak on every lap.
Raven gets her notebook ready.
She wants to write down every number.
WARM-UP: LAP BY LAP
- Follow the loop.
- Tap what steps holds.
set steps to 0
repeat 2 times:
change steps by 1
?
set steps to 3
repeat 2 times:
change steps by 1
stop
land
?
Nova speaks every lap
The say line is inside the loop.
So Nova speaks on every lap.
Nova says 1, then 2, then 3.
set steps to 0 repeat 3 times: change steps by 1 say steps
Two boxes, one loop
A logbook can track two boxes.
Each box gets its own column.
Both boxes grow by 1 each lap.
WHAT DOES NOVA SAY LAST?
- Nova speaks every lap.
- Tap the last number Nova says.
set steps to 0
repeat 4 times:
change steps by 1
say steps
?
set height to 1
repeat 3 times:
change height by 1
say height
?
set steps to 0
repeat 2 times:
say steps
change steps by 1
?
Build a counting flight.
Nova must say 1, then 2.
Steps starts at 0.
BUILD A COUNTING FLIGHT
- Make Nova say 1, then 2.
- Lines under repeat run every lap.
1line 1
2line 2
3line 3
4line 4
What do you notice?
Read one column at a time.
One box can go up.
The other box can go down!
set steps to 0 set height to 5 repeat 3 times: change steps by 1 lower height by 1
Steps goes up 1. Height goes down 1.
| after | steps | height | true? |
|---|---|---|---|
| lap 1 | 1 | 4 | ? |
| lap 2 | 2 | 4 | ? |
| lap 3 | 3 | 2 | ? |
TRICKY ONES!
- Read every line carefully.
- Check the name tags.
set steps to 0
set height to 5
repeat 2 times:
change steps by 1
lower height by 1
?
set height to 2
set steps to 0
repeat 3 times:
change steps by 1
stop
say height
?
Nova counted every lap!
A say line in the loop speaks every lap.
Each box gets its own column.
See you tomorrow, Crew!