Logo Give students examples of Logo procedures with parameters and global variables, and then have them write and run some of their own. Describe files, records, fields and data types in a database. Have students set up a database and then use it. They should search using different conditions and also make reports of selected portions of the data. Discuss the widespread use of databases and their uses and abuses.
Database queries Create another database, sort it and index it.
Then use more complicated conditions to search and create reports. AND, OR, NOT, NAND, and NOR gates. Show how to combine them to produce different outputs including a simple adder. Database queries Practice with more complicated databases having date and logical fields. Discuss the algorithms used in searching and sorting, and introduce the concept of recursion.