• Look up unknown words in a dictionary & try to use the new words in future conversations/letters, etc.
  
• Use a thesaurus when writing letters and papers
• Play word games like Scrabble, etc. with friends
• Solve anagrams (word jumbles) in newspapers
• Solve crossword puzzles
• Take classes that require extensive reading
• Take classes that require writing numbers of papers
• Read magazines on topics or hobbies of interest
• Get help from English teachers, writing labs, and any other vocabulary building resource

Numerical

• If your school or local public library has self-paced math tutorial programs, try them
• Take additional math classes
• Take business or industrial arts classes

• Solve jigsaw puzzles
• Solve Rubic's Cubes and other similar logic games
• Work any kind of logic problems (various types of books and games are available in bookstores and libraries)
• Solve anagrams and crossword puzzles
• Take computer programming classes

Spatial-Form

• Engage in hobbies that require working with one's hands, building, constructing, or creating objects
• Take art or photography classes
• Take drafting classes
• Take courses in interior decorating/design

Mechanical/Electrical

• Take classes in the physical sciences (physics, chemistry, etc.)
• Take technology classes
• Take industrial arts or shop classes
• Engage in hobbies requiring working with one's hands, repairing, constructing electrical circuits, mechanical devices, computer hardware, etc.