Edit in JSFiddle

var app = angular.module("MiApp", []);

function MiPageController($scope) {
    $scope.ocultar = false;
}

<body ng-app="MiApp" ng-controller="MiPageController">
    <input type="checkbox" ng-model="ocultar">¿Ocultar?
    <div ng-hide="ocultar==true">Mostramos el div</div>
</body>