The binary search method is an interesting and simple enough algorithm to teach basic CS skills: <a href="http:&#x2F;&#x2F;joaoventura.net&#x2F;blog&#x2F;2015&#x2F;search-algorithms&#x2F;" rel="nofollow">http:&#x2F;&#x2F;joaoventura.net&#x2F;blog&#x2F;2015&#x2F;search-algorithms&#x2F;</a>