public function display_rubric_mapping_explained($scores) {
        $html = '';
        if (!$scores) {
            return $html;
        }
        if ($scores['minscore'] <> 0) {
            $html .= $this->output->notification(get_string('zerolevelsabsent', 'gradingform_rubric'), 'error');
        }
        $html .= $this->output->notification(get_string('rubricmappingexplained', 'gradingform_rubric', (object)$scores), 'info');
        return $html;
    }