Remember: A bug is a mistake in the steps, never in the robot. There are three kinds: mixed-up steps, a missing step, and a number that is off.
Read and answer
Read the story, then answer.
Three days, three bugsBo runs the juice stand at the school fair. Maya's steps say: pour the juice, put the cup down, hand it over. On day one, Bo pours first, and there is no cup yet. Splash! The juice runs across the table. Ms. Park says Bo did exactly what the steps told him, so the mix-up is in the steps: they were in a mixed-up order. On day two Maya swaps the cards, but now the pour step is missing, and Bo hands over an empty cup. On day three Maya has typed the pour five times instead of once, and the cup overflows. On the last day the line is long, and every cup comes out full.
1
On day one Bo follows these steps and juice runs across the table. Which kind of bug is it?
The steps are in a mixed-up orderA step is missingA number is off
2
On day two Bo hands over an empty cup. Which kind of bug is it?
The steps are in a mixed-up orderA step is missingA number is off
3
On day three the cup overflows. Which kind of bug is it?
The steps are in a mixed-up orderA step is missingA number is off
4
Bo is the one who made the mess.
TrueFalse
5
All three kinds of bug are mistakes in the , never in Bo.
stepscupsjuice
6
Steps can always be fixed, so Maya knows where to look.
TrueFalse
Sort the bugs
7
Join each robot's bug to the kind of bug it is.
1paint goes on before the brush is picked up
2a lamp has no step to switch it on
3a robot walks ten steps, not two
Amixed-up order
Ba number that is off
Ca missing step
8
Put the juice stand's fixed steps in order.
Pour the juice
Hand it over
Put the cup down
9
Circle every one that is a bug.
Painting before the brush is picked upA door that is opened and then shutA lamp with no step to switch it onA robot that stops when its steps end
10
Mix-up to fix: Maya's day three program pours five times. Which change fixes it?
Keep one pour card and take out the other fourAdd five more pour cardsTake out the put the cup down card
11
Stretch: Maya takes the four extra pour cards out of the seven. She has cards left.
12
Ask a grown-up for three steps to make a sandwich. Swap two steps, leave one out, or change a number. Write which kind of bug you made.
13
Draw Bo handing over a full cup on the last day.
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