// Numbas version: finer_feedback_settings
{"name": "Fill in table of books per child", "extensions": ["jsxgraph", "sheets"], "custom_part_types": [{"source": {"pk": 242, "author": {"name": "Christian Lawson-Perfect", "pk": 7}, "edit_page": "/part_type/242/edit"}, "name": "Spreadsheet", "short_name": "spreadsheet", "description": "<p>An editable spreadsheet. Ranges of cells can be disabled, and you can specify ranges of cells to be marked. A cell is marked correct if its value is equal to the value in the expected answer spreadsheet.</p>", "help_url": "", "input_widget": "spread-sheet", "input_options": {"correctAnswer": "settings[\"correct_answer\"]", "hint": {"static": true, "value": ""}, "initial_sheet": {"static": false, "value": "disable_cells(settings[\"initial_sheet\"], settings[\"disable_ranges\"])"}}, "can_be_gap": true, "can_be_step": true, "marking_script": "correctAnswer:\nsettings[\"correct_answer\"]\n\nmark:\nif(sum(mark_ranges)=0,\n  incorrect(),\n  apply(mark_ranges)\n)\n\ninterpreted_answer:\nstudentAnswer\n\nrange_cells:\nmap(parse_range(ref),ref,values(settings[\"mark_ranges\"]))\n\ntotal_cells:\nlen(flatten(range_cells))\n\nrange_weights:\nswitch(\n  settings[\"marking_method\"]=\"per_cell\",\n    map(len(r)/total_cells, r, range_cells),\n  // otherwise, mark per range\n    repeat(1/len(range_cells), len(range_cells))\n)\n\nmark_ranges:\nmap(\n  let(\n    range_credit,\n      sum(map(\n        let(\n          correctCellString, correctAnswer[c],\n          correctCellNumber, parsenumber(correctCellString, notation_styles),\n          studentCellString, studentAnswer[c],\n          studentCellNumber, parsenumber(studentCellString, notation_styles),\n          award(\n            1/len(cells), \n            if(isnan(correctCellNumber) and correctCellString<>\"\",\n              lower(correctCellString) = lower(studentCellString),\n              abs(studentCellNumber - if(isnan(correctCellNumber),0,correctCellNumber)) <= settings[\"tolerance\"]\n            )\n          )\n        ),\n        c,\n        cells\n      )),\n    message,\n      switch(\n        range_credit=0,\n          if(len(cells)=1, \"This entry is incorrect.\", \"All entries in this range are incorrect.\"),\n        range_credit=1,\n          if(len(cells)=1, \"This entry is correct.\", \"All entries in this range are correct.\"),\n        //otherwise\n          \"Some entries in this range are correct.\"\n      ),\n    assert(len(cells)=0, add_credit(range_credit*w, \"<strong>{name}:</strong> \"+message)); \n    range_credit\n  ),\n  [cells,w,name],\n  zip(range_cells, range_weights, keys(settings[\"mark_ranges\"]))\n)\n\nnotation_styles:\n[\"plain\",\"si-en\"]", "marking_notes": [{"name": "correctAnswer", "description": "<p>A spreadsheet representing the expected answer.</p>", "definition": "settings[\"correct_answer\"]"}, {"name": "mark", "description": "This is the main marking note. It should award credit and provide feedback based on the student's answer.", "definition": "if(sum(mark_ranges)=0,\n  incorrect(),\n  apply(mark_ranges)\n)"}, {"name": "interpreted_answer", "description": "A value representing the student's answer to this part.", "definition": "studentAnswer"}, {"name": "range_cells", "description": "<p>For each range to be marked, the addresses of the cells in that range.</p>", "definition": "map(parse_range(ref),ref,values(settings[\"mark_ranges\"]))"}, {"name": "total_cells", "description": "<p>The total number of cells to be marked. Cells in overlapping ranges will be counted once for each range they're in.</p>", "definition": "len(flatten(range_cells))"}, {"name": "range_weights", "description": "<p>The weight of each range, as a proportion of the available credit.</p>", "definition": "switch(\n  settings[\"marking_method\"]=\"per_cell\",\n    map(len(r)/total_cells, r, range_cells),\n  // otherwise, mark per range\n    repeat(1/len(range_cells), len(range_cells))\n)"}, {"name": "mark_ranges", "description": "<p>Mark each of the ranges specified by the question author.</p>", "definition": "map(\n  let(\n    range_credit,\n      sum(map(\n        let(\n          correctCellString, correctAnswer[c],\n          correctCellNumber, parsenumber(correctCellString, notation_styles),\n          studentCellString, studentAnswer[c],\n          studentCellNumber, parsenumber(studentCellString, notation_styles),\n          award(\n            1/len(cells), \n            if(isnan(correctCellNumber) and correctCellString<>\"\",\n              lower(correctCellString) = lower(studentCellString),\n              abs(studentCellNumber - if(isnan(correctCellNumber),0,correctCellNumber)) <= settings[\"tolerance\"]\n            )\n          )\n        ),\n        c,\n        cells\n      )),\n    message,\n      switch(\n        range_credit=0,\n          if(len(cells)=1, \"This entry is incorrect.\", \"All entries in this range are incorrect.\"),\n        range_credit=1,\n          if(len(cells)=1, \"This entry is correct.\", \"All entries in this range are correct.\"),\n        //otherwise\n          \"Some entries in this range are correct.\"\n      ),\n    assert(len(cells)=0, add_credit(range_credit*w, \"<strong>{name}:</strong> \"+message)); \n    range_credit\n  ),\n  [cells,w,name],\n  zip(range_cells, range_weights, keys(settings[\"mark_ranges\"]))\n)"}, {"name": "notation_styles", "description": "<p>Accepted number notation styles for a value in an individual cell.</p>", "definition": "[\"plain\",\"si-en\"]"}], "settings": [{"name": "initial_sheet", "label": "Initial sheet", "help_url": "", "hint": "A <code>spreadsheet</code> object giving the initial state of the sheet that the student should fill in.", "input_type": "code", "default_value": "", "evaluate": true}, {"name": "correct_answer", "label": "Correct answer", "help_url": "", "hint": "A <code>spreadsheet</code> object representing a correct answer to the part.", "input_type": "code", "default_value": "", "evaluate": true}, {"name": "disable_ranges", "label": "Ranges to disable", "help_url": "", "hint": "A list of cell or range references, denoting the cells that should not be editable.", "input_type": "code", "default_value": "[]", "evaluate": true}, {"name": "mark_ranges", "label": "Ranges to mark", "help_url": "", "hint": "A dictionary of cell or range references, mapping names to ranges of cells, denoting the cells that should be compared for equality with the expected answer.", "input_type": "code", "default_value": "dict()", "evaluate": true}, {"name": "marking_method", "label": "Marking method", "help_url": "", "hint": "", "input_type": "dropdown", "default_value": "per_cell", "choices": [{"value": "per_cell", "label": "Each cell has the same weight"}, {"value": "per_range", "label": "Each range has the same weight"}]}, {"name": "tolerance", "label": "Allowed margin of error", "help_url": "", "hint": "", "input_type": "code", "default_value": "0", "evaluate": true}], "public_availability": "always", "published": true, "extensions": ["sheets"]}], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Fill in table of books per child", "tags": [], "metadata": {"description": "<p>The student is shown a table with rows for each class in a school, and two columns of numbers: books, and children. They have to work out the column totals, and the number of books per child, and enter them in the table.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "statement": "", "advice": "<p>For the totals on the bottom row, add up the numbers in each column:</p>\n<p>{highlighted_totals}</p>\n<p>To work out the books per child, divide <strong>Books</strong> by <strong>Children</strong>, and round down to the nearest whole number.</p>\n<p>For example, in {first_class_name}, the number of books per children is</p>\n<p>\\[ \\simplify[basic]{ {num_books[0]} / {num_children[0]}} \\approx \\var{floor(num_books[0]/num_children[0])} \\]</p>\n<p>{highlighted_books_per_child}</p>", "rulesets": {}, "extensions": ["jsxgraph", "sheets"], "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"initial_spreadsheet": {"name": "initial_spreadsheet", "group": "Ungrouped variables", "definition": "disable_cells(fill_range(\n  big_spreadsheet,\n  \"B2:C6\",\n  zip(map(string(x),x,num_books),map(string(x),x,num_children),map(dpformat(x,2),x,books_per_child))\n), [\"A1:D1\", \"A1:A7\", \"B2:C6\", \"D7\"])", "description": "", "templateType": "anything", "can_override": false}, "big_spreadsheet": {"name": "big_spreadsheet", "group": "Ungrouped variables", "definition": "spreadsheet_from_base64_file(safe(\"books-per-child.xlsx\"), 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"description": "", "templateType": "spreadsheet", "can_override": false}, "num_books": {"name": "num_books", "group": "Ungrouped variables", "definition": "repeat(random(60..200),5)", "description": "", "templateType": "anything", "can_override": false}, "num_children": {"name": "num_children", "group": "Ungrouped variables", "definition": "repeat(random(25..30),5)", "description": "", "templateType": "anything", "can_override": false}, "books_per_child": {"name": "books_per_child", "group": "Ungrouped variables", "definition": "map(floor(books/children),[books,children],zip(num_books,num_children))", "description": "", "templateType": "anything", "can_override": false}, "completed_spreadsheet": {"name": "completed_spreadsheet", "group": "Ungrouped variables", "definition": "initial_spreadsheet\n|> fill_range(\"B7:C7\",[map(string(sum(x)),x,[num_books,num_children])]) \n|> fill_range(\"D2:D6\", books_per_child)", "description": "", "templateType": "anything", "can_override": false}, "highlighted_totals": {"name": "highlighted_totals", "group": "Ungrouped variables", "definition": "initial_spreadsheet\n|> fill_range(\"B7:C7\",[map(string(sum(x)),x,[num_books,num_children])]) \n|> update_range(\"B7:C7\",bg_color(\"lightblue\"))", "description": "<p>For the advice section.</p>\n<p>The spreadsheet with the totals filled in and highlighted.</p>", "templateType": "anything", "can_override": false}, "highlighted_books_per_child": {"name": "highlighted_books_per_child", "group": "Ungrouped variables", "definition": "completed_spreadsheet\n|> update_range(\"D2:D6\", bg_color(\"lightblue\"))", "description": "<p>For the advice section.</p>\n<p>The completed spreadsheet with the entries in the \"books per child\" column highlighted.</p>", "templateType": "anything", "can_override": false}, "first_class_name": {"name": "first_class_name", "group": "Ungrouped variables", "definition": "big_spreadsheet[\"A2\"]", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["big_spreadsheet", "initial_spreadsheet", "completed_spreadsheet", "num_books", "num_children", "books_per_child", "highlighted_totals", "highlighted_books_per_child", "first_class_name"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "spreadsheet", "useCustomName": false, "customName": "", "marks": "15", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Fill in this table. Round the \"books per child\" down to the nearest whole number.</p>", "settings": {"initial_sheet": "initial_spreadsheet", "correct_answer": "completed_spreadsheet", "disable_ranges": "[\"A1:D1\",\"A1:A7\",\"B2:C6\", \"D7\"]", "mark_ranges": "[\"Books per child\": \"D2:D6\", \"Total books\": \"B7\", \"Total children\": \"C7\"]", "marking_method": "per_range", "tolerance": "0"}}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question", "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "http://clppc:8000/accounts/profile/1/"}, {"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}]}]}], "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "http://clppc:8000/accounts/profile/1/"}, {"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}]}