If you're a user of Essentials for Algebra (EFA), you may have encountered trouble with your display CD that accompanies the program. The National Institute for Direct Instruction learned recently that the EFA display CD does not work with Macs, although it should still work with PCs. If you put the EFA display disc into a Mac, you will likely get an error message indicating "Power PC applications are no longer supported". This problem is related to how newer Mac operating systems are configured.

McGraw-Hill Education has addressed this problem by making the displays available through their online system, ConnectED. Users with a ConnectEd account should be able to access the displays through this system. If you do not see EFA as a program in your ConnectED account, you will need to contact your McGraw-Hill representative for a redemption code. Only McGraw-Hill can issue these codes.