You can control a checkbox through value in scope.
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.js"></script>
</head><!--from w w w . j a v a 2s .c o m-->
<body>
<div ng-app ng-controller="x">
<input type="checkbox" ng-checked="y"> {{y}}
</div>
<script type='text/javascript'>
function x($scope) {
$scope.y = 1;
}
</script>
</body>
</html>
The code above is rendered as follows: