Don't get me wrong. If a teacher wants to have an interesting class discussion about how to guess the meaning from these phrases when someone doesn't know, that's fine. But as a test of whether kids are learning the curriculum, it's bogus. And I am all for teaching kids to find evidence for claims (except starting in 1st grade is a little ridiculous, and that is what I hear is happening with Common Core), but this is a ridiculous question for testing and students' answers show nothing. The question assumes the child will not konw the word for one. And knowing it does not help you answer the next question (though it helps eliminate two of the 4 choices). |
Here's one where they make up concepts.
There is a number line shown with 0 at the center and the number 2.5 marked. It asks, "What is the opposite of 2.5?" |
Where? |
You mean which test? 7th grade math practice test. |
I've seen these types of vocabulary questions on the elementary school PARCC test. The first question asks what does some word mean as used in the passage, and the second question asks which sentence from the passage best demonstrates the meaning of the word. I think the point isn't just to show you know the meaning of the word, which is great if you already know it, but it is to be able to read the passage and use it to prove a point. It is basically a test of reading comprehension, which is what the PARCC test is supposed to be measuring. For example if the word being defined is "recurring" -- can you read the passage and find an example of something that demonstrates an event that happens again and again? |
Could you post the whole question, please? Or did you post the whole question? I think that the question relates to this standard: CCSS.Math.Content.7.NS.A.1.b Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts. |
Wow. Thank you for posting this. I already made an account and found two resources based on what I am teaching right now! Thank you, thank you, thank you. |
This is not a new concept made up by PARCC. Opposite = additive inverse. http://www.icoachmath.com/math_dictionary/opposite_numbers.html |
Why did they use the word "opposite"? That isn't math terminology. They should have asked "what is the additive inverse of 2.5"? Right? The word opposite might throw someone off. I see how that is a made up concept. |
There must be new terminology since I did math. ?? |
This question tests a knowledge of vocabulary. Why don't they just have a problem where you need to understand this concept to do the problem? This is a reading and vocabulary test. |
There is likely new terminology since you studied math, because math and math education are dynamic fields. However, since you're being nitpicky about terminology, I'll point out that you surely "do" math every day. I know I do, whether I'm making a budget, or estimating how many gallons of gas I can buy with the dollars in my pocket, or figuring out a recipe. Whether using the term "opposite" to convey the concept of additive inverse, is new terminology, I don't know. It was certainly in use when I studied prealgebra in the early '80's, but you may be older than I am. |
Yes, I'm older than you are. But since terminology seems to change, isn't it more important to understand the concepts and show that you understand them by working a problem. Understanding can be shown without knowing the vocabulary. |
Not in Common Core. |
The vocabulary is part of the understanding. |