// Numbas version: exam_results_page_options
{"name": "Placing a point on a number line", "extensions": ["jsxgraph"], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Placing a point on a number line", "statement": "<p>This question asks you to place a point on a number line.</p>", "advice": "<p>The correct position of the point is shown on the number line below.</p>\n<p>{dragpointafter()}</p>", "parts": [{"showCorrectAnswer": true, "variableReplacementStrategy": "originalfirst", "extendBaseMarkingAlgorithm": true, "showFeedbackIcon": true, "scripts": {}, "variableReplacements": [], "customMarkingAlgorithm": "", "prompt": "<p>Place the point $A=\\var{a}$ on the number line below by dragging it.</p>\n<p>To be marked correct you have to get the point within 0.1 of the correct position (in the horizontal direction, the vertical position doesn't matter).</p>\n<p>{dragpoint()}</p>", "type": "gapfill", "unitTests": [], "sortAnswers": false, "marks": 0, "gaps": [{"showCorrectAnswer": true, "variableReplacementStrategy": "originalfirst", "extendBaseMarkingAlgorithm": true, "showFeedbackIcon": true, "scripts": {}, "variableReplacements": [], "minValue": "a-0.1", "mustBeReducedPC": 0, "customMarkingAlgorithm": "", "correctAnswerFraction": false, "maxValue": "a+0.1", "allowFractions": false, "notationStyles": ["plain", "en", "si-en"], "mustBeReduced": false, "type": "numberentry", "unitTests": [], "marks": 1, "correctAnswerStyle": "plain"}]}], "ungrouped_variables": ["a"], "variablesTest": {"condition": "", "maxRuns": 100}, "extensions": ["jsxgraph"], "variables": {"a": {"definition": "random(-10..10#0.1)", "name": "a", "description": "", "group": "Ungrouped variables", "templateType": "randrange"}}, "preamble": {"js": "", "css": ""}, "rulesets": {}, "metadata": {"description": "<p>This question asks you to place a point on a number line.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "functions": {"dragpoint": {"definition": "// set up the board\nvar div = Numbas.extensions.jsxgraph.makeBoard('500px','150px',{boundingBox:[-11,1.5,11,-1.5],axis:false,showNavigation:false});\nvar board = div.board;\n\nvar ax1 = board.create('line', [[0,0],[1,0]]);\nboard.create('ticks',[ax1, 2], {minorTicks:1, majorHeight:20, minorHeight:10, tickEndings:[0,1], drawZero:true, drawLabels:true, label:{offset:[-4, -20]}});\nax1.setProperty({fixed:true});\n\nvar w = Numbas.jme.unwrapValue(scope.variables.a);\n\nvar a = board.create('point',[0,1],{size:5});\n\na.on('drag',function(){\n  Numbas.exam.currentQuestion.parts[0].gaps[0].display.studentAnswer(a.X());  \n});\n\nreturn div;", "parameters": [], "language": "javascript", "type": "html"}, "dragpointafter": {"definition": "// set up the board\nvar div = Numbas.extensions.jsxgraph.makeBoard('500px','75px',{boundingBox:[-11,0.75,11,-1],axis:false,showNavigation:false});\nvar board = div.board;\n\nvar ax1 = board.create('line', [[0,0],[1,0]]);\nboard.create('ticks',[ax1, 2], {minorTicks:1, majorHeight:20, minorHeight:10, tickEndings:[0,1], drawZero:true, drawLabels:true, label:{offset:[-4, -20]}});\nax1.setProperty({fixed:true});\n\nvar w = Numbas.jme.unwrapValue(scope.variables.a);\n\nvar a = board.create('point',[w,0],{size:5});\na.setProperty({fixed:true});\n\nreturn div;", "parameters": [], "language": "javascript", "type": "html"}}, "tags": [], "variable_groups": [], "type": "question", "contributors": [{"name": "Anthony Brown", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/799/"}]}]}], "contributors": [{"name": "Anthony Brown", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/799/"}]}