moodle/mod/data/field/checkbox/mod.html

<table width="100%">
    <tr>
        <td><?php echo get_string('fieldname', 'data'); ?>:</td>
        <td><input style="width:300px;" type="text" name="name" id="name" value="<?php echo($this->field->name); ?>" /></td>
    </tr>
    <tr>
        <td><?php echo get_string('fielddescription', 'data'); ?>:</td>
        <td><input style="width:300px;" type="text" name="description" id="description" value="<?php echo($this->field->description); ?>" /></td>
    </tr>
    <tr>
        <td valign="top"><?php echo get_string('fieldoptions', 'data'); ?>:</td>
        <td><textarea style="width:300px; height:150px;" name="param1" id="param1" cols="80" rows="10"><?php if($this->field->param1) {echo $this->field->param1;} ?></textarea></td>
    </tr>
</table>