Dreaming good old days, these teddies are made with new ideas: amigurumi.
Two bears in the photos are by the same pattern, but of different kinds of yarn.
This fluffy friends could be changed in a big range with your selection of yarn, attaching of eyes and ears and embroidery.
This pattern includes full charts (diagrams) and written instructions with photos. English and Japanese bilingual. Technics you need, which are very basic ones, are below:
dc (US: double crochet, UK: treble crochet)
increase and decrease