gistfile1.js

    contentView: SC.TabView.design({
        layout: {
            top: 10,
            right: 10,
            bottom: 10,
            left: 10
        },
        items: [
					{	title: 'News',			value: '.parentView.NewsView' },
					{	title: 'Assignments', 	value: 'DarkHorse.AssignmentsSubView' },
					{	title: 'Grades',		value: 'DarkHorse.GradesSubView' },
					{	title: 'Discussion',	value: 'DarkHorse.DiscussionSubView' },
					{	title: 'Resources',		value: 'DarkHorse.ResourcesSubView' }
		],
        itemTitleKey: 'title',
        itemValueKey: 'value',
        value: 'NewsSubView',

		NewsView: SC.View.design({
			layout: { top: 10, right: 10, bottom: 10, left: 10 },
			childViews: 'viewName'.w(),
			classNames: ['tabView'],

			viewName:SC.LabelView.design({
				layout: { top: 0, right: 0, bottom: 0, left: 0 },
				value: 'News'
			})
		})

    })