8441 /www/nrich/html/content/id/8441/ 10 0000-00-00T00:00:00 <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"><h3>Problems with teacher support</h3> <br></br> The following problems contain detailed teacher support concerning how we might use the task in schools.  However, since these problems are intended to be rich mathematical activities they can be used effectively in many ways and at many levels of sophistication, both in the classroom and by individuals.</mdoxml> 2 3 0 0 0 0 0