Week 04 · Variables

Wednesday

// Boxes that hold things

Sometimes you want to TRADE what's inside two boxes. To do that you need a THIRD empty box (call it temp). Read carefully:

a = 7
b = 4
temp = a       (now temp = 7)
a    = b       (now a = ?)
b    = temp    (now b = ?)

After 'a = b': a = ____

After 'b = temp': b = ____

◇ PARTNER MOVE

Use 3 cups (paper or imaginary).
Put a sticker (or pebble) in two of them. Try to swap WITHOUT temp.
Now try with temp. Easier?

Thursday: Score Keeper

Rocket and Raven are playing tag. Track each player's score in a variable.

ROCKET tag = +1. RAVEN tag = +2. MISS = -1.

Round	Event	rocket_score	raven_score
Start	(none)	0	0
1	Rocket tags Raven	?	?
2	Raven tags Rocket	?	?
3	Rocket misses	?	?
4	Raven tags Rocket	?	?
5	Rocket tags Raven	?	?

Winner:

Grown-up checked my answers