A page containing quotes and lessons learned by the group during the different sections of the book.

Section 1.1:

Declarative vs imperative knowledge.

The elements of programming

The means that the language provides for combining simple ideas to form more complex ideas:

• primitive expressions, which represent the simplest entities the language is concerned with,
• means of combination, by which compound elements are built from simpler ones, and
• means of abstraction, by which compound elements can be named and manipulated as units.

Section 1.2:

Recursive and Iterative Processes

Playing with Ackermann's function:

https://github.com/sarabander/p2pu-sicp/blob/master/1.2/Ex1.10.pdf?raw=true

Section 1.3:

Building abstractions 

Higher order procedures (procedures have first-class status):

• Procedures as arguments

• Procedures as general methods
• Procedures as returned values