: Digital and physical copies with audio CDs are available from major retailers like Amazon or National Geographic Learning directly. Secondary Online Platforms
: You can download a free sample unit of the Teacher's Book (typically Unit 1) directly from the National Geographic Learning (NGL) Keynote website . Download keynote advanced teacher book pdf
: Ideas for further classroom discussion and 21st-century skill development (communication, collaboration, creativity). : Digital and physical copies with audio CDs