Week 09 · Read Ten Lines
Wednesday
Then or otherwise?
// Read a long program in chunks
⏱ about 15 min
Then or otherwise?
Test ships use fuel as they fly.
Rocket writes a program with a fuel box.
A loop takes fuel away, bit by bit.
Then a check looks at the fuel box.
Raven asks, which line will run?
You need to know the fuel first.
WARM-UP: LOOP ROUNDS
- Count the loop rounds.
- Tap the answer.
the program
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the program
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A check after a loop
The loop changes two boxes.
Then the check reads the fuel box.
Work out the fuel before the check!
set fuel to 5 set height to 2 repeat 2 times: lower fuel by 1 change height by 1 stop if fuel under 4 then land otherwise say safe say height
What do you notice?
After the loop, fuel holds 3.
Is 3 under 4? Yes!
So the then line runs.
WHICH LINE RUNS?
- Work out the box first.
- Then read the check.
the loop chunk
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fuel holds 3
the check chunk
?
the program
?
Build a program that says safe.
Fuel starts at 6 and goes down 1.
Then the check runs.
MAKE NOVA SAY SAFE
- Get the fuel ready first.
- Then the three check lines.
1line 1
2line 2
3line 3
4line 4
5line 5
Raven has tricky ones
TRICKY ONES!
- Change the box before the check.
- Tap the line that runs.
the program
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the program
?
Word Spot: carry, state, book
Here are new sight words.
Look at each word. Say it. Spell it.
Carry: C-A-R-R-Y.
State: S-T-A-T-E.
Book: B-O-O-K.
FIND THE WORD
- Listen to the word.
- Tap it.
Listen and find
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Listen and find
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Listen and find
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Listen and find
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FILL THE GAP
- Listen to the sentence.
- Tap the missing word.
Which word fits?
?
Which word fits?
?
Checks after loops? Done!
Work out the box first.
Then read the check.
Only one line runs: then or otherwise.
Great work, Crew!