Scratch

It doesn't take much time at all! Simply use the "ask block" and the if block together to see if the answer of the quiz is right, then make the sprite say something according to the answer and maybe add to a correct-answer variable if a question is correctly answered.

One question may be:

ask [Quiz: What is 2 + 2?] and wait
if <(answer) = ((2) + (2))>
say [Correct!]
change [correct answers v] by (1)
else
say [Wrong!]
end

Last edited by rdococ (2012-02-05 09:08:56)

henley wrote:

rdococ’s example is good, but instead of

((2) + (2))

you could just use a four. 

I noticed that too 

An alternative method of showing it to your class without using the internet would be to use the presentation mode located in Scratch.

As rdococ said the main components of a quiz are ask and answer blocks.

Below is an explanation of how it works in detail, you can avoid this and go with the above solution if you understand it fine, though.

---

The ask Block

The ask block, shown below, allows you to enter a question to ask.

ask [question] and wait

answer

ask [What is the answer to 7 + 5?] and wait

if <(answer) = [12]>
Then Something Happens Here
end

say [That's Right!] for [2] secs

change (score) by [1]

ask [What is the answer to 7 + 5?] and wait
if <(answer) = [12]>
say [That's Right!] for [2] secs
change (score) by [1]
end

if <>

else

end

ask [What is the answer to 7 + 5?] and wait
if <(answer) = [12]>
say [That's Right!] for [2] secs
change (score) by [1]
else
say [That's Wrong!] for [2] secs
end

Use the broadcast block.

when gf clicked
wait until < (question #) = (3) >
broadcast [question 3]
wait until < (question #) = (4) >
broadcast [question 4]
wait until < (question #) = (5) >
broadcast [question 5]

When I Receive [question 3]
show

When I Receive [question 4]
hide

When I Receive [question 4]
show

When I Receive [question 5]
hide

Last edited by MoreGamesNow (2012-02-05 16:38:11)

webmanoffesto wrote:

Thanks for the help, I'm already making progress.

Another question:
If I want to present a series of questions how do I show three pictures at question 3 and then different pictures at question 4. They could be sprites (the correct answer is to click on picture 2) or just information that helps you answer the question.

Hmm, I'd agree with MoreGamesNow.

Split your questions using the broadcast blocks.

Main Script - Broadcast blocks

Your main script in the sprite will look something like this:

when gf clicked
set (QuestionNumber) to [1]
broadcast [Question1 v]
wait until <(QuestionNumber) = [2]>
broadcast [Question2 v]
wait until <(QuestionNumber) = [3]>

when I receive [Question1 v]
ask [The Question] and wait
if <(answer) = [The Answer]>
broadcast [CorrectAnswer v]
end

when I receive [CorrectAnswer v]
say [That's Correct!] for [2] secs

when gf clicked
hide
stop script

when I receive [Question2 v]
switch to costume [Costume_that_you_want_to_show v]
show

when I receive [CorrectAnswer v]
hide

Another thing you can do is use lists to store the questions and answers.

Questions List:

What is 2 + 2?
What is 5 - 1?
If Bob has 5 apples and Alice has 2 apples, how many do they have in all?

Answers List:

4
4
7

when gf clicked
set [score v] to (0)
set [i v] to (1)
repeat <length of [questions v]>
    ask <item (i) of [questions v]> and wait
    if <(answer) = <item (i) of [answers v]>>
        say [You are correct!] for (2) secs
        change [score v] by (1)
    else
        say [You are incorrect!] for (2) secs
    end
    say <join [You have ] (score)> for (2) secs
    change [i v] by (1)
end
say <join <join [You got ] (score)> <join [ out of ] <length of [questions v]>>>