What does half as many mean

The sentence is actually quite natural. See definition 16 : " I stand corrected. I've never heard this in my life, which is probably why it sounds so unnatural. I just asked three people near me if they had ever heard it, and the answer was the same. If a dictionary says it's correct, OK, but it sounds tragically archaic. Click to expand Right, I didn't state that it factually was ; if it was, the dictionaries would likely mark that it was. I wrote that it just that it sounds that way to me.

It would be like reading or hearing "hitherto" uncommon, formal instead of "until now" common in a modern book. A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials. J's study guide 1 card. What is the name of Steve on minecraft's name. Steel Tip Darts Out Chart 96 cards. Q: What does half as many mean? Write your answer Related questions. How many kilometers do you have to swim in a half Triathlon?

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Five in a half quarts equals how many pints? How do you determine the mean if there are two? Note how I not only used numbers but I also inverted the problem by giving the number of boys first. Yes we are also teachers of reading! Will students do this on their own? If trained!! From this point there are many solution paths and I would definitely allow upper elementary or middle school students to play with this for a few minutes in their groups.

There's no rushing this process. We can simply explain our method to them but this is only a part of their learning. Of course that's my opinion and there are many out there who would cringe at this. The eternal battle between The Direct Instructionists and the Constructivists! Those are just labels about which I care little. Whatever works Since I can speak from 40 yrs of experience I know what worked for my students Besides I've already debated this ad infinitum and ad nauseam with some of the best.

No one ever changes their mind! There are some subtle part:whole ratio concepts embedded here. Isn't it tempting to pick choice E here because we're not given the Adult:Child ratio. But the question asked for the ratio of the combined female to the total. It is very instructive to see this algebraically. Organization is very helpful. I use a tree model to represent this kind of data but most do not do this. Say there are 2 girls, 4 boys; 5 women, 10 men.

Then the number of females 7 is still one-third of the total 21! Hopefully my readers will suggest more efficient ratio methods, Singapore models, other algebraic representations, etc OR no comments at all!

Email This BlogThis! Posted by Dave Marain at AM. I love ratio problems, because they are so confusing at first and then a little bit of work can make it all clear. In bar models, this is a two-unit puzzle that simplifies to a single unit. As you said, it often helps to ask students first which group is largest, and then encourage them to try simple numbers until they can see the relationship.

In Singapore math, kids get lots of experience with ratio-like word problems in the elementary years working up to the study of ratios in middle school. Post a Comment. Wednesday, November 13, 'Half as many as' vs 'Twice as many as' Revisited. Remember we can always go back to concrete numerical relationships: "Ok say there are 12 boys. November 13, at PM Dave Marain said Beautiful bar model explanation! I've missed this type of interaction. Thank you!

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