US high school IB (International Baccalaureate) and General Chemistry courses are now available. To see these SIGN UP (free) choosing your institution as US high schools. The index of activities for each course is available by clicking on one topic heading (after cancelling the BUY LICENCE dialog). One activity at the top of each section is available for you to try free of charge. For more information about monitoring your classes contact Sheila Woodgate (sd.woodgate@auckland.ac.nz).