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//problems in computing the area and perimeter of rhombi
var something = ['yard','field','parking lot','floor','lake','pasture'];
var units = ['mm2','cm2','dm2','m2','dam2','hm2','km2'];
var factor = [0,100,10000,1000000,100000000,1000000000,1000000000000]
var nunits = units.length;
function generate_decimal(min,max) {
n = Math.random()*(max-min)+min;
ntxt = n + ' ';
point = ntxt.indexOf('.');
whole = ntxt.substring(0,point-1)
decimal = ntxt.substring(point+1,point+4)
return whole + '.' + decimal;
};
function generate_operand(min,max) {
return Math.random()*(max-min) + min;
};
function shift(i1,i2,amount){
if(i2>i1){
f = factor[i2-i1];
return amount/f;
}else{
f = factor[i1-i2];
return amount*f;
}
};
function generate_opportunity(questions){
//build quiz.js
quiztxt = '';
for (q=0;q<questions;q++){
type = Math.random();
if(type < 0.5){
//determine area from base and altitude
base = parseInt(generate_operand(1,100));
altitude = parseInt(generate_operand(1,100));
area = base*altitude;
quiztxt = quiztxt+'{ ques: "The base and altitude of a rhombus are '
quiztxt = quiztxt+base+" "+altitude+". What is it's area?"+'"';
quiztxt = quiztxt+", ans:'"+area+"'},\n"
}else{
//determine perimeter from sides
side1 = parseInt(generate_operand(1,100));
side2 = parseInt(generate_operand(1,100));
perimeter = 2*(side1+side2);
quiztxt = quiztxt+'{ ques: "The sides of a rhombus are '
quiztxt = quiztxt+side1+" "+side2+". What is it's perimeter?"+'"';
quiztxt = quiztxt+", ans:'"+perimeter+"'},\n"
};
};
return quiztxt;
};
function initialize(karma) {
quiztxt = generate_opportunity(12);
url = window.location+"";
$('<div id="txtMain" />')
.load('http://localhost:8008/cgi-bin/getFile.py',
{'filename':'content/Mathematics/map412m10/map412m10a12/a.txt'})
.appendTo('#content');
$('<div id="workArea" />')
.load('http://localhost:8008/cgi-bin/writeQuiz.py',
{'activity':url,'text': quiztxt});
};
function startGame(karma) {
$('<div id="quizArea" />')
.appendTo('#content')
.jQuizMe(quiz,options)
};
setUpLesson(initialize, startGame);
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