![]() bat (in baseball) because most students can figure out those meanings in context. I don’t typically focus on basic meanings like bat (the animal) vs. Teachers and SLPs have limited time with students, so it’s important that we focus on words that will have the greatest educational impact. If you pick meaningful words when teaching about multiple meaning words, students will more than likely already have a connection to at least one of the meanings to build off of. Here is a list of The 100 Most Important Multiple Meaning Words Kids Need to Know. ![]() Meaningful words are words that students will hear and use often, or words that are commonly misunderstood. In this blog, we will discuss 4 strategies for teaching multiple meaning words. Speech Language Pathologists and Teachers of the Deaf and Hard of Hearing use strategies to help teach multiple meaning words. The last thing is especially relevant since you've mentioned "meaning" in the (nomen omen) context of formal languages.Direct teaching of multiple meaning words can help deepen students’ listening and reading comprehension and expand their vocabulary use in their writing. if you would like to encode the semantics of Scala into a grammar, you would end up with either a context-free or a context-sensitive one.it is context-sensitive - it can be even more complex,.the entire Scala language is context-free,.So just this, as in the observation that the nonterminal "=>" can appear in two "places" of the program, does not make Scala context-sensitive. Obviously, this can generate a string like: Double=>Double=x=>x Where S is of course the start symbol, uppercased IDs are nonterminals, and quoted strings are terminals. This is essentially what the Pumping Lemma checks. Instead, it amounts to looking at the set of all legal expressions in that language, and seeing whether you can "encode" them only by taking into account the positional relationships the component "words" have with one another. It does not mean that a specific symbol cannot appear in different rules.Īddressing the edit: in other words (and more informally), deciding whether a language is context-free or context-sensitive boils down not to looking at the "meaning" of a specific "word" or "words". "Context-free" means that the production rules required in the corresponding grammar do not have a "context". It's been a while since I've handled formal language theory, but I'll bite. It be great if an answer would address my confusion. I think my confusion stems from reading something like "Chomsky introduced this term because a word's meaning can depend on its context", and I connected => with the term "word" in the quote, and those two uses of it being two separate contexts. I know how the production rules are supposed to look, and what they mean ( "this production applies only if A is surrounded by these symbols"), but I'm just not sure how they relate to actual (programming) languages. Seems like I don't understand context sensitive grammars well enough. I know that most languages are not context free, but I'm not sure whether the situation I'm describing has anything to do with that. How does this relate to formal grammars, i.e. According to this answer => in Scala is a keyword which has two different meanings: 1 to denote a function type: Double => Double and 2 to create a lambda expression: (x: Double): Double => 2*x.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |