{"interactiveVideo":{"video":{"startScreenOptions":{"title":"Vid\u00e9o interactive","hideStartTitle":false},"textTracks":{"videoTrack":[{"label":"Sous-titres","kind":"subtitles","srcLang":"en"}]},"files":[{"path":"https:\/\/www.youtube.com\/watch?v=NSvq5LTJRvc","mime":"video\/YouTube","copyright":{"license":"U"}}]},"assets":{"interactions":[{"x":0,"y":0,"width":40,"height":22.49969432314411,"duration":{"from":478.65,"to":478.65},"libraryTitle":"Multiple Choice","action":{"library":"H5P.MultiChoice 1.14","params":{"media":{"disableImageZooming":false},"answers":[{"correct":false,"tipsAndFeedback":{"chosenFeedback":"

Wrong answer! Go back to 7 min 42 s in the video if you want to hear the explanations again.<\/div>\n","tip":"","notChosenFeedback":""},"text":"

The conjecture is proven.<\/div>\n"},{"correct":true,"tipsAndFeedback":{"chosenFeedback":"

Correct answer!<\/div>\n","tip":"","notChosenFeedback":""},"text":"

The conjecture is not proven.<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":false,"enableSolutionsButton":false,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":false,"showSolutionsRequiresInput":false,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":false},"UI":{"checkAnswerButton":"Check","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"

Isabella makes the following conjecture: the sum of two prime numbers always gives an even number. She shows you 3 examples where this is indeed the case. Has Isabella's conjecture been proven?<\/p>\n"},"subContentId":"ed3c5ac8-4ee7-4b20-931f-c02f52abc9a5","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 1","defaultLanguage":"en"}},"pause":true,"displayType":"poster","buttonOnMobile":false,"adaptivity":{"correct":{"allowOptOut":false,"message":""},"wrong":{"allowOptOut":true,"message":"","seekTo":462,"seekLabel":"Go back to 7 min 42 s."},"requireCompletion":false},"label":""},{"x":0,"y":0,"width":40,"height":22.49969432314411,"duration":{"from":555.48,"to":555.48},"libraryTitle":"Multiple Choice","action":{"library":"H5P.MultiChoice 1.14","params":{"media":{"disableImageZooming":false},"answers":[{"correct":false,"tipsAndFeedback":{"chosenFeedback":"

Wrong answer! Go back to 7 min 59 s in the video if you want to hear the explanations again.<\/div>\n","tip":"","notChosenFeedback":""},"text":"

The conjecture is true<\/strong>, because we can easily find 3 examples where it works. For example, \\(3 + 5 = 8,\\) \\(7 + 13 = 20\\) and \\(11 + 13 = 24.\\) In all 3 cases, the sum is even.<\/div>\n"},{"correct":true,"tipsAndFeedback":{"chosenFeedback":"
Correct answer!<\/div>\n","tip":"","notChosenFeedback":""},"text":"
The conjecture is false<\/strong>. To prove this, a single counterexample is sufficient. For example, \\(2 + 5 = 7.\\) The numbers 2 and 5 are prime numbers, yet the sum is not an even number.<\/div>\n"},{"correct":false,"tipsAndFeedback":{"chosenFeedback":"
Wrong answer! Go back to 7 min 59 s in the video if you want to hear the explanations again.<\/div>\n","tip":"","notChosenFeedback":""},"text":"
We can't say whether the conjecture is true or false by just using examples and counterexamples.<\/div>\n"}],"overallFeedback":[{"from":0,"to":100}],"behaviour":{"enableRetry":false,"enableSolutionsButton":false,"enableCheckButton":true,"type":"auto","singlePoint":false,"randomAnswers":false,"showSolutionsRequiresInput":false,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"passPercentage":100,"showScorePoints":false},"UI":{"checkAnswerButton":"Check","showSolutionButton":"Show solution","tryAgainButton":"Retry","tipsLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","tipAvailable":"Tip available","feedbackAvailable":"Feedback available","readFeedback":"Read feedback","wrongAnswer":"Wrong answer","correctAnswer":"Correct answer","shouldCheck":"Should have been checked","shouldNotCheck":"Should not have been checked","noInput":"Please answer before viewing the solution","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"
Consider the following conjecture: the sum of two prime numbers is always an even number.<\/p>\n\n
Which of the following conclusions is correct?<\/p>\n"},"subContentId":"143f2918-1d05-477a-80f1-a33b748ca557","metadata":{"contentType":"Multiple Choice","license":"U","title":"Question 2","defaultLanguage":"en"}},"pause":true,"displayType":"poster","buttonOnMobile":false,"adaptivity":{"correct":{"allowOptOut":false,"message":""},"wrong":{"allowOptOut":true,"message":"","seekTo":479,"seekLabel":"Go back to 7 min 59 s."},"requireCompletion":false},"label":""},{"x":0,"y":0,"width":40,"height":22.49969432314411,"duration":{"from":771.45,"to":771.45},"libraryTitle":"True\/False Question","action":{"library":"H5P.TrueFalse 1.6","params":{"media":{"disableImageZooming":false},"correct":"false","behaviour":{"enableRetry":false,"enableSolutionsButton":false,"enableCheckButton":true,"confirmCheckDialog":false,"confirmRetryDialog":false,"autoCheck":false,"feedbackOnWrong":"Wrong answer! Go back to 12 min 02 s in the video if you want to hear the explanations again.","feedbackOnCorrect":"Correct answer!"},"l10n":{"trueText":"True","falseText":"False","score":"You got @score of @total points","checkAnswer":"Check","showSolutionButton":"Show solution","tryAgain":"Retry","wrongAnswerMessage":"Wrong answer","correctAnswerMessage":"Correct answer","scoreBarLabel":"You got :num out of :total points","a11yCheck":"Check the answers. The responses will be marked as correct, incorrect, or unanswered.","a11yShowSolution":"Show the solution. The task will be marked with its correct solution.","a11yRetry":"Retry the task. Reset all responses and start the task over again."},"confirmCheck":{"header":"Finish ?","body":"Are you sure you wish to finish ?","cancelLabel":"Cancel","confirmLabel":"Finish"},"confirmRetry":{"header":"Retry ?","body":"Are you sure you wish to retry ?","cancelLabel":"Cancel","confirmLabel":"Confirm"},"question":"
Consider the following theorem: a quadrilateral is a rectangle if and only if the quadrilateral in question contains 4 right angles.<\/p>\n\n
True or False?<\/strong>
\nYou can use this theorem to assert that a rectangle has 4 right angles, but you can't use it to assert that a quadrilateral that contains 4 right angles is a rectangle.<\/p>\n"},"subContentId":"424b8faa-8806-476b-8488-ef70499bb53c","metadata":{"contentType":"True\/False Question","license":"U","title":"Question 3","defaultLanguage":"en"}},"pause":true,"displayType":"poster","buttonOnMobile":false,"adaptivity":{"correct":{"allowOptOut":false,"message":""},"wrong":{"allowOptOut":true,"message":"","seekLabel":"Go back to 12 min 02 s","seekTo":722},"requireCompletion":false},"label":""}]},"summary":{"task":{"library":"H5P.Summary 1.10","params":{"intro":"Choisissez l'affirmation exacte.","summaries":[{"subContentId":"fe8b1dd8-dd10-4d67-aea1-34372ebb4bc6","tip":""}],"overallFeedback":[{"from":0,"to":100}],"solvedLabel":"Progress:","scoreLabel":"Wrong answers:","resultLabel":"Your result","labelCorrect":"Correct.","labelIncorrect":"Incorrect! Please try again.","alternativeIncorrectLabel":"Incorrect","labelCorrectAnswers":"Correct answers.","tipButtonLabel":"Show tip","scoreBarLabel":"You got :num out of :total points","progressText":"Progress :num of :total"},"subContentId":"2a64a8f1-1c36-4fbb-aa4c-67b86c61c771","metadata":{"contentType":"Summary","license":"U","title":"Sans titre Summary","defaultLanguage":"en"}},"displayAt":3}},"override":{"autoplay":false,"loop":false,"showBookmarksmenuOnLoad":false,"showRewind10":false,"preventSkipping":false,"deactivateSound":false},"l10n":{"interaction":"Interaction","play":"Play","pause":"Pause","mute":"Mute","unmute":"Unmute","quality":"Video Quality","captions":"Captions","close":"Close","fullscreen":"Fullscreen","exitFullscreen":"Exit Fullscreen","summary":"Open summary dialog","bookmarks":"Bookmarks","endscreen":"Submit screen","defaultAdaptivitySeekLabel":"Continue","continueWithVideo":"Continue with video","playbackRate":"Playback Rate","rewind10":"Rewind 10 Seconds","navDisabled":"Navigation is disabled","sndDisabled":"Sound is disabled","requiresCompletionWarning":"You need to answer all the questions correctly before continuing.","back":"Back","hours":"Hours","minutes":"Minutes","seconds":"Seconds","currentTime":"Current time:","totalTime":"Total time:","singleInteractionAnnouncement":"Interaction appeared:","multipleInteractionsAnnouncement":"Multiple interactions appeared.","videoPausedAnnouncement":"Video is paused","content":"Content","answered":"@answered answered","endcardTitle":"@answered Question(s) answered","endcardInformation":"You have answered @answered questions, click below to submit your answers.","endcardInformationNoAnswers":"You have not answered any questions.","endcardInformationMustHaveAnswer":"You have to answer at least one question before you can submit your answers.","endcardSubmitButton":"Submit Answers","endcardSubmitMessage":"Your answers have been submitted!","endcardTableRowAnswered":"Answered questions","endcardTableRowScore":"Score","endcardAnsweredScore":"answered","endCardTableRowSummaryWithScore":"You got @score out of @total points for the @question that appeared after @minutes minutes and @seconds seconds.","endCardTableRowSummaryWithoutScore":"You have answered the @question that appeared after @minutes minutes and @seconds seconds."}}