Chemistry resources include a current Chemistry Course Calendar , chapter notes, worksheets, review sheets, and labs for Chemistry. I have posted web versions of my PowerPoint presentations , which can be viewed as Flash movies within your browser or downloaded for offline viewing in the new .ppsx format. I also have my own Interactive Practice Activities . Reviews and links to some of my favorite chemistry related freeware can be found on the Chemistry Freeware page. You can select and print a periodic table on the Printable Periodic Tables page. Several years ago I produced some Problem Solving Videos for common problem types in this course. I have a collection of Programs for the TI-83plus graphing calculator, most of which I have written myself, for solving various types of Chemistry problems. These also work on the TI-84 and TI-84plus.