Home Responsibility Sustainability Covid-19 Resources

Primary school children

It can be tricky keeping the younger members of your family entertained while at home. Once they’re finished playing in the garden, why not try out these online resources?

System.ArgumentNullException: Value cannot be null.
Parameter name: key
   at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetElementType(NestedContentRowValue item) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 354
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetPropertyValues(Object propertyValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 382
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentPropertyValueEditor.FromEditor(ContentPropertyData editorValue, Object currentValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 221
   at Our.Umbraco.DocTypeGridEditor.Helpers.DocTypeGridEditorHelper.ConvertValue(String id, String contentTypeAlias, String dataJson)
   at Umbraco.Core.Cache.AppCacheExtensions.<>c__DisplayClass5_0`1.<GetCacheItem>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at Umbraco.Core.Cache.FastDictionaryAppCacheBase.<>c__DisplayClass21_0.<GetSafeLazy>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\FastDictionaryAppCacheBase.cs:line 285
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Umbraco.Core.Cache.HttpRequestAppCache.Get(String key, Func`1 factory) in D:\a\1\s\src\Umbraco.Core\Cache\HttpRequestAppCache.cs:line 81
   at Umbraco.Core.Cache.AppCacheExtensions.GetCacheItem[T](IAppCache provider, String cacheKey, Func`1 getCacheItem) in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at ASP._Page_app_plugins_doctypegrideditor_render_DocTypeGridEditor_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\app_plugins\doctypegrideditor\render\DocTypeGridEditor.cshtml:line 26
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\Views\Partials\grid\editors\Base.cshtml:line 20

Secondary school children

Looking for something more challenging to occupy older children at home? Check out these fun and educational challenges, apps and websites while they’re not at school.

System.ArgumentNullException: Value cannot be null.
Parameter name: key
   at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetElementType(NestedContentRowValue item) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 354
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetPropertyValues(Object propertyValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 382
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentPropertyValueEditor.FromEditor(ContentPropertyData editorValue, Object currentValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 221
   at Our.Umbraco.DocTypeGridEditor.Helpers.DocTypeGridEditorHelper.ConvertValue(String id, String contentTypeAlias, String dataJson)
   at Umbraco.Core.Cache.AppCacheExtensions.<>c__DisplayClass5_0`1.<GetCacheItem>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at Umbraco.Core.Cache.FastDictionaryAppCacheBase.<>c__DisplayClass21_0.<GetSafeLazy>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\FastDictionaryAppCacheBase.cs:line 285
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Umbraco.Core.Cache.HttpRequestAppCache.Get(String key, Func`1 factory) in D:\a\1\s\src\Umbraco.Core\Cache\HttpRequestAppCache.cs:line 81
   at Umbraco.Core.Cache.AppCacheExtensions.GetCacheItem[T](IAppCache provider, String cacheKey, Func`1 getCacheItem) in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at ASP._Page_app_plugins_doctypegrideditor_render_DocTypeGridEditor_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\app_plugins\doctypegrideditor\render\DocTypeGridEditor.cshtml:line 26
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\Views\Partials\grid\editors\Base.cshtml:line 20

Working from home

Working from home will be a new experience for many. These resources should help make it a more productive, less stressful, experience.

System.ArgumentNullException: Value cannot be null.
Parameter name: key
   at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetElementType(NestedContentRowValue item) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 354
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetPropertyValues(Object propertyValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 382
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentPropertyValueEditor.FromEditor(ContentPropertyData editorValue, Object currentValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 221
   at Our.Umbraco.DocTypeGridEditor.Helpers.DocTypeGridEditorHelper.ConvertValue(String id, String contentTypeAlias, String dataJson)
   at Umbraco.Core.Cache.AppCacheExtensions.<>c__DisplayClass5_0`1.<GetCacheItem>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at Umbraco.Core.Cache.FastDictionaryAppCacheBase.<>c__DisplayClass21_0.<GetSafeLazy>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\FastDictionaryAppCacheBase.cs:line 285
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Umbraco.Core.Cache.HttpRequestAppCache.Get(String key, Func`1 factory) in D:\a\1\s\src\Umbraco.Core\Cache\HttpRequestAppCache.cs:line 81
   at Umbraco.Core.Cache.AppCacheExtensions.GetCacheItem[T](IAppCache provider, String cacheKey, Func`1 getCacheItem) in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at ASP._Page_app_plugins_doctypegrideditor_render_DocTypeGridEditor_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\app_plugins\doctypegrideditor\render\DocTypeGridEditor.cshtml:line 26
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\Views\Partials\grid\editors\Base.cshtml:line 20

Health and wellbeing

It’s more important than ever that everyone at home stays fit and healthy right now. These websites and apps will help you and your family do just that.

System.ArgumentNullException: Value cannot be null.
Parameter name: key
   at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetElementType(NestedContentRowValue item) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 354
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetPropertyValues(Object propertyValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 382
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentPropertyValueEditor.FromEditor(ContentPropertyData editorValue, Object currentValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 221
   at Our.Umbraco.DocTypeGridEditor.Helpers.DocTypeGridEditorHelper.ConvertValue(String id, String contentTypeAlias, String dataJson)
   at Umbraco.Core.Cache.AppCacheExtensions.<>c__DisplayClass5_0`1.<GetCacheItem>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at Umbraco.Core.Cache.FastDictionaryAppCacheBase.<>c__DisplayClass21_0.<GetSafeLazy>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\FastDictionaryAppCacheBase.cs:line 285
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Umbraco.Core.Cache.HttpRequestAppCache.Get(String key, Func`1 factory) in D:\a\1\s\src\Umbraco.Core\Cache\HttpRequestAppCache.cs:line 81
   at Umbraco.Core.Cache.AppCacheExtensions.GetCacheItem[T](IAppCache provider, String cacheKey, Func`1 getCacheItem) in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at ASP._Page_app_plugins_doctypegrideditor_render_DocTypeGridEditor_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\app_plugins\doctypegrideditor\render\DocTypeGridEditor.cshtml:line 26
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\Views\Partials\grid\editors\Base.cshtml:line 20

General

Bored? Need something to take your mind off being stuck at home? Try these cooking, reading and mental challenges to keep you occupied.

System.ArgumentNullException: Value cannot be null.
Parameter name: key
   at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetElementType(NestedContentRowValue item) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 354
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentValues.GetPropertyValues(Object propertyValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 382
   at Umbraco.Web.PropertyEditors.NestedContentPropertyEditor.NestedContentPropertyValueEditor.FromEditor(ContentPropertyData editorValue, Object currentValue) in D:\a\1\s\src\Umbraco.Web\PropertyEditors\NestedContentPropertyEditor.cs:line 221
   at Our.Umbraco.DocTypeGridEditor.Helpers.DocTypeGridEditorHelper.ConvertValue(String id, String contentTypeAlias, String dataJson)
   at Umbraco.Core.Cache.AppCacheExtensions.<>c__DisplayClass5_0`1.<GetCacheItem>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at Umbraco.Core.Cache.FastDictionaryAppCacheBase.<>c__DisplayClass21_0.<GetSafeLazy>b__0() in D:\a\1\s\src\Umbraco.Core\Cache\FastDictionaryAppCacheBase.cs:line 285
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Umbraco.Core.Cache.HttpRequestAppCache.Get(String key, Func`1 factory) in D:\a\1\s\src\Umbraco.Core\Cache\HttpRequestAppCache.cs:line 81
   at Umbraco.Core.Cache.AppCacheExtensions.GetCacheItem[T](IAppCache provider, String cacheKey, Func`1 getCacheItem) in D:\a\1\s\src\Umbraco.Core\Cache\AppCacheExtensions.cs:line 62
   at ASP._Page_app_plugins_doctypegrideditor_render_DocTypeGridEditor_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\app_plugins\doctypegrideditor\render\DocTypeGridEditor.cshtml:line 26
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
   at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
   at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
   at Umbraco.Web.Mvc.ProfilingView.Render(ViewContext viewContext, TextWriter writer) in D:\a\1\s\src\Umbraco.Web\Mvc\ProfilingView.cs:line 25
   at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
   at ASP._Page_Views_Partials_grid_editors_Base_cshtml.Execute() in D:\Inetpub\wwwroot\UmbracoAdmin-B\Views\Partials\grid\editors\Base.cshtml:line 20