Here are some more instructions for some of the materials on the website.
Crosswords
If you have problems with the crosswords in the Builder plus section, make sure you have the latest Flash Player. Read the clues.
Click on a clue and write your answer in the grid. To see the correct answer, click on the see
answer button. Click on the start again button to start the crossword again.
Builder plus
If you have a problem downloading the PDFs, make sure you have Adobe Acrobat Reader