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Use of Cookies

NCTM must identify you as an NCTM member to support your use on the site. To do this the browser stores information in a small text file, called a "cookie," on your hard disk. Cookies must be enabled on your Web browser in order for you to sign in and use the site. This allows the site to identify your subscription access. NCTM uses cookies only to support and facilitate your activity on the Members Only site.  Personal information is only stored in your NCTM account.

Web Browsers are typically set up to allow the use of cookies. One can specify to be prompted before a site puts a cookie on your hard disk, so you can choose to allow or disallow the cookie; or you can prevent the browser from accepting any cookies. If your browser is set to not accept cookies, then it is not possible to sign in to Members Only.

If you are not able to sign in with a valid user name and password, use the following guidelines to check that your browser has enabled cookies.

Internet Explorer

Enable "Cookies" for NCTM Web sites:

  1. Open Internet Explorer.
  2. Go to Tools on the menu, then Internet Options.
  3. Select the Privacy tab
  4. The slider should be set to at least "Medium"
  5. Click "OK".
  6. Close all browser windows and reopen IE and Sign In.

Add NCTM to your list of trusted sites

Enable cookies for NCTM Web sites only:

  1. Open Internet Explorer
  2. Go to Tools on the menu, then Internet Options
  3. Select Privacy tab, click Trusted Sites icon
  4. Click the Sites button 
  5.  Add www.nctm.org to the list 
  6.  Click "OK".
  7. Click "OK".
  8. Close all browser windows and reopen IE and Sign In.

Firefox

Enable "Cookies" for NCTM Web sites:

  1. Open your browser
  2. Go to Tools on the menu, select "Options..."
  3. Select Privacy tab
  4. Under Cookies, the options "Accept cookies from sites" and "Accept third-party cookies" must be checked.
  5. Click "OK".
  6. Close all browser windows and reopen Firefox and Sign In.