How to make a table print out only the same columns within a database

pluzzz0

What I want to do is what is in the shown in the table. I want to only get the Math subject and order the units from unit 1 (UI) to the last available unit in the database; after this, under each unit, to show the homework related to each unit. I have tried to save it into an array with mysql_fetch_array but it stores the row that involves one unit. I want all the units and only the units with their homework under them.
My database is attached to this post in a txt file.
hope someone can help.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento sin título</title>
</head>


<body>


<form action="" method="post" name="form1" id="form1">
<table width="200" border="1">
  <tr>
    <td>Subject:</td>
    <td>Math</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>UI</td>
    <td>UI</td>
    <td>UII</td>
    <td>UIII</td>
    <td>UII</td>
    <td>...</td>
  </tr>
  <tr>
    <td>Home work</td>
    <td>Math work1</td>
    <td>Math work2</td>
    <td>Math work3</td>
    <td>Math work4</td>
    <td>Math work5</td>
    <td>...</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
</table>
</form>


</body>
</html>

pluzzz0

forgot to put my database
-- phpMyAdmin SQL Dump
-- version 4.1.6

-- http://www.phpmyadmin.net

-- Host: 127.0.0.1
-- Generation Time: Jul 25, 2014 at 05:52 AM
-- Server version: 5.6.16
-- PHP Version: 5.5.9

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";

/!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT /;
/!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS /;
/!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION /;
/!40101 SET NAMES utf8 /;

-- Database: `school`

-- Table structure for table `class`

CREATE TABLE IF NOT EXISTS class (
id int(11) NOT NULL AUTO_INCREMENT,
subject varchar(30) COLLATE utf8_spanish_ci NOT NULL,
unit varchar(5) COLLATE utf8_spanish_ci NOT NULL,
homework varchar(50) COLLATE utf8_spanish_ci NOT NULL,
dueDate date NOT NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_spanish_ci AUTO_INCREMENT=11 ;

-- Dumping data for table `class`

INSERT INTO class (id, subject, unit, homework, dueDate) VALUES
(1, 'Math', 'UI', 'Math work1', '2014-04-04'),
(2, 'Math', 'UI', 'Math work2', '2014-05-12'),
(3, 'Science', 'UI', 'Science work1', '2014-04-09'),
(4, 'Home Economics', 'UII', 'Home economics work1', '2014-04-16'),
(5, 'Math', 'UII', 'Math work 3', '2014-05-12'),
(6, 'Math', 'UIII', 'Math work4', '2014-05-21'),
(7, 'Science', 'UII', 'Science work2', '2014-05-14'),
(8, 'Physics', 'UI', 'Physics work1', '2014-05-06'),
(9, 'Math', 'UIII', 'Math work5', '2014-07-16'),
(10, 'Math', 'UIV', 'Math work6', '2014-07-14');

/!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT /;
/!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS /;
/!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION /;