Since children have varying levels of computer skills, Flash Cards receives its input from the mouse, keyboard, or a 10-key pad. An extensive list of Internet sites with significant collections of materials that can be used in the teaching of mathematics at the K-12 level. You don't need to be a math whiz to solve them, just to be patient and find different ways of looking at things. New puzzles and the answer to the previous week's puzzles are posted each Thursday. Helpful hints and an archive are included.
Students then look for patterns and write the answer algebraically.
There are 1000 lockers, all shut and unlocked, and 1000 students. Suppose the first student goes along the row and opens every other locker. The second student then goes along and shuts every other locker beginning with number 2. The third student changes the state of every third locker beginning with number 3. The fourth student changes the state of every fourth locker beginning with number 4.