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A Simple Quiz for Alice 3.2: Step 1: Create the Quiz ... · 7/2/2011 · Edited for Alice 3 use...
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A Simple Quiz for Alice 3.2: Ask User Functions. By Lana Dyck under the direction of Professor Susan Rodger Duke University June 2009, added Part 2 July 2011, Edited for Alice 3 use and Part 3,4 added by Anh Trinh July 2016 Introduction and Set-up This tutorial will demonstrate how to create a simple quiz using the three different kinds of “ask user” functions: ask user for a number, ask user for true or false and ask user for a string. Open a new Alice grass world. Click on Setup Scene. Choose Browse Gallery By Group, and click Animals. Add one Penguin, one Cow , and three Chickens into your world. Arrange and resize the objects so they are easy to see. Click Edit Code when finished. Let's get started by setting up the world. Create a new scene procedure that we will use later to hold the instructions for the quiz. Step 1: Create the Quiz Procedure Lets start by creating a quiz procedure Click on the Scene tab and choose Add Scene Procedure Name the new procedure: quiz. Click back on myFirstMethod. Now we will add the quiz to MyFirstMethod. Make sure you are in MyFirstMethod. Click on this.penguin in the object tree. Drag the say procedure into the procedure editor and type in: Time for a quiz. Drag in a second say procedure and type in: That is all folks! Click on this in the object tree and drag the quiz procedure in between the two penguin say commands Step 2: Set Up MyFirstMethod
Transcript of A Simple Quiz for Alice 3.2: Step 1: Create the Quiz ... · 7/2/2011 · Edited for Alice 3 use...
ASimpleQuizforAlice3.2:AskUserFunctions.
ByLanaDyck
underthedirectionofProfessorSusanRodger
DukeUniversity
June2009,addedPart2July2011,
EditedforAlice3useandPart3,4addedbyAnhTrinhJuly2016
Introduction and Set-up
Thistutorialwilldemonstratehowtocreateasimplequizusingthethreedifferentkindsof“askuser”functions:askuserforanumber,askuserfortrueorfalseandaskuserforastring.
OpenanewAlicegrassworld.
ClickonSetupScene.
ChooseBrowseGalleryByGroup,and
clickAnimals.
AddonePenguin,oneCow,andthree
Chickens intoyourworld.
Arrangeandresizetheobjectsso
theyareeasytosee.
ClickEditCodewhenfinished.
Let'sgetstartedbysettinguptheworld.
Createanewsceneprocedurethatwewilluselatertoholdtheinstructionsforthequiz.
Step 1: Create the Quiz Procedure
Letsstartbycreatingaquiz
procedure
ClickontheScene taband
chooseAddSceneProcedure
Namethenewprocedure:quiz.
ClickbackonmyFirstMethod.
Nowwewilladdthequizto
MyFirstMethod.
MakesureyouareinMyFirstMethod.
Clickonthis.penguin intheobjecttree.
Dragthesay procedureintothe
procedureeditorandtypein:
Timeforaquiz.
Draginasecondsay procedureand
typein:Thatisallfolks!
Clickonthis intheobjecttreeanddrag
thequiz procedureinbetweenthetwo
penguinsaycommands
Step 2: Set Up MyFirstMethod
Nowwewillstartwritingthequizprocedure.Tomakeourcodeeasiertoread
wewilladdincomments.Commentsmakeitpossibletoaddinnotesaboutthe
codelike,whatitwilldo,orwhowrotethecode.
Firstclickonthequizproceduretab.
Toaddacommentdraganddropthedoubleslashbuttonintothe
method
Step 3: Comments
Typeinthecommenteditor:Question1
Clickonthis.penguin intheobjecttree,haveitsay:Howmanyanimalsintheworld?andsetthedurationto2seconds.
Step 4: Question #1
Weneedavariabletostore
thenumberinformation
wegetfromtheuser.
Draginthe
buttontoopenvariable
optionbox.
NameitanswerNumber.SelectWholeNumber
besidevaluetype,initialize
itto0andclickOK.
Clickontheworld intheobjecttree.
Undertheworld'sdetails,functions find“askuserforanumber.”
Clickanddragtheaskuserforanumber overthe1andselectother...
Enterthestring:Enterthenumberofanimals:
Step 4: Question #1Continued...
Nowwewilldeterminewhathappensiftheanswergiveniscorrectorincorrect.
DraganddropanIf blockfromthebottomofthewindowandsetittotrue.
Step 4: Question #1Continued...
ChooseRelational(WholeNumber)in
thetruedrop-downlist.
Select“???==???“->answerNumber...
->CustomWholeNumbertoenterin
thevalue5.5isthecorrectanswertothisquestion.
Forthisquestionwhenthe“If”statementistrue,theansweriscorrect.Sowewill
putourresponsetothecorrectanswerfirst.
Clickonthis.penguin intheobjecttree.
UndertheIf:
Dragthesay methodandtype:CorrectDragtheturn methodandselect1
Whentheifstatementisfalse,theanswerisincorrect.
UndertheElse:
Dragthesay methodandtype:Sorry,thatisnotcorrect.
Step 4: Question #1Continued...
Runyourworldtotakethe
onequestionquiz.
Nowletsmakeaquestionthataskstheuserforatrueorfalseresponse.
Dropinacommentandtypein:Question2Clickonpenguin intheobjecttree,haveitsay:Aretheremorechickensthanpenguins?andsetthedurationto2seconds.
Step 5: Question #2
Weneedavariabletostoretheboolean
informationwegetfromtheuser.
Draginvariable buttonfromthebottomof
thewindow.
NameitanswerBoolean.
SelectBooleanandClickOK.
Inthepenguin'sfunctions,draganddropthe“getBooleanFromUser”
overthetrue.
Typein:Clickontrueandfalse.
Step 5: Question #2Continued...
NowwewilladdinourresponsestotheanswerinanotherIf/Elsestatement.
DraganddropanIf/Else
statementandselectanswerBoolean.
TheIfquestionacceptsjustthevariablebecauseanswerBooleanisaboolean
type.
Step 5: Question #2Continued...
Nowcompletethequestion#2byaddinginthe
proceduresasshownbelow:
Step 5: Question #2Continued...
Runyourworldtotake
thetwoquestionquiz.
Forourfinalquestionwewillasktheusertoenterastring.
Dropinacommentandtypein:Question3
Clickonpenguin intheobjecttree,haveit
say:Whatbuildingarewein?andsetthedurationto2seconds.
Step 6: Question #3
Weneedavariabletostorethestringinformationwegetfromtheuser.
Draginthevariable button.
NameitanswerString.
SelectTextStringand‘hello’ininitializer
ClickOK.
Note: Astringisasetof
lettersorcharacters.Aspaceis
consideredacharactersobe
carefulifyouhaveaspaceat
theendofyourwordor
sentence.
Inthepenguin'sfunctions,
draganddropthegetStringFromUser overthe‘hello’string.
Typein:Enteracronym.
Step 6: Question #3Continued...
NowwewilladdinourresponsestotheanswerinanotherIf/Elsestatement.
DraganddropanIf/Else statementandselecttrue.
ClickthedownarrowintrueandselectTextStringComparison->
???equalsIgnoreCase???-> answerString-> CustomTextString thentypein:LSRC
WithequalsIgnoreCase,theanswerisnotcase-sensitive
Step 6: Question #3Continued...
Clickonpenguinintheobjecttreeandaddintheresponses
forwhentheansweriscorrectorincorrectasshownbelow.
Nowplayyourworldandtakethequiz.
Step 6: Question #3Continued...
Part 2: Forcing the Answer
InQuestion1,iftheusermistypestheanswer,wewantthe
programtoasktheuserfortheansweragainuntilitiscorrect.
Rewritequestion1toaddawhileloopandforcetheuserintothe
loopwithawrongvaluetostartwith.
Part 3: Limiting Number of Trials
Tolimitthenumberoftrialsto3forexample,createanewvariablenamed
numberofTrial,createawhileloopthatallowsthequestiontoshowupaslongas
thestudentstrieslessthan3times.Eachtimetheyanswerincorrectly,increment
numberofTrial by1.Iftheyanswer,correctly,setnumberofTrial toanumbergreater
than3tobreakoutofthewhileloop(herewechoose5)
Part 4: Score Reporting
Challenge:Toreportscoretouser,wehavetocreatealocalvariablescore forthe
quizprocedure,initializeitto0,andincrementitby1everytimethestudent
answeraquestioncorrectly.Attheend,havethepenguinreportthescore.
Toreportthescoreintheend,dragthepenguinsayprocedureinandtype
“Yougot”.
Clickonthedownarrownexttothestringyoujusttypedandselect“Yougot
“+???->WholeNumber->score
Part 4: Score Reporting
Clickonthedownarrownexttothe“Yougot“+scorestringandselect“You
got“+score+??? ->CustomTextString andType”questionscorrect”
Part 4: Score Reporting
Quiz Procedure code
