What do we know? Head lice are tiny parasites. Their formal name is Pediculus humanus capitis. Their perfect living conditions are at the base of the hair shaft on the head, eyebrows and eyelashes of humans. From there, a louse feeds on blood from the scalp several times a day. This location also provides an ideal temperature for eggs, or nits, to incubate. A nit hatches into a nymph after about a week. The nymph grows into an adult louse in another 9-10 days. Adult lice then live for 3-4 weeks. Nits can be hard to remove because the female louse[Read more...]
What is Speech and Language? Speech is the use of language to communicate, or express ourselves. Language is used to express ideas and needs in an organized way. It can be spoken, written, sung or expressed using gestures (such as sign language). The important foundations of language develop in the first three to five years of life. Language development involves both cognitive learning, and motor skill. We use a lot of muscles in our face and mouth to produce speech. The CanChild Centre for Child Disability Research outlines the ways in which language development can be delayed: • Semantics[Read more...]
