If I might plug my own work: I did a 5-part lesson on my blog. It starts from zero knowledge and ends up with two Fibonnaci calculators (one recursive, one it

If I might plug my own work: I did a 5-part lesson on my blog. It starts from zero knowledge and ends up with two Fibonnaci calculators (one recursive, one iterative): http://blog.suspended-chord.info/tag/lambda%20calculus/ http://blog.suspended-chord.info/tag/lambda%20calculus/ (There's also a theorycrafting post I did a bit later to build a rudimentary object-oriented programming paradigm in the Lambda calculus.)