# A. Learning content summary
Chapter two
In this chapter, learn other base conversion between digital and decimal numbers, there is a certain understanding of the concept of positional notation.
third chapter
For complement have a preliminary understanding, understanding of the real floating-point notation, scientific notation, etc. representation. Audio and image representation also have a certain understanding
Issues relating to the teaching and learning process to solve
1. Discover Upon completion of the base64 encoding of python can not run the program
after asking students and found to have a python expansion pack is not installed, after installation can run.
2. Computer representation of negative numbers
after did not understand in class, the teacher made access to information in the class learned how to convert
III. Learning progress
Preview the contents of the next lesson and read the "self-study is a craft."