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Posts tagged with fractions

Worthless Words Not Needed for Math Learning

July10

Peter Tavernise from Cisco writes, “What if your biggest challenge in learning math was that you could not understand the words that the teacher used to convey math concepts? That the language in the math book was not your first language? Or that your learning disability involved difficulties with words and reading?” This graph (from the […]

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Wonky Donkey Math

June22

You gotta love Wonky Donkey Math – great, thought-provoking fun as classroom starters. When I was a young boy waiting at the barbershop for a haircut, I loved the magazines that included “Spot the Difference” cartoons. They kept my interest for ages. So, dear students (and this is an obvious one), what’s wrong with the […]

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Equivalent Fractions almost explained

October14
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Math terms – learning with humor

August3

“There is a fine line between a Numerator and Denominator but only a fraction of people will find it funny!” How can you tell the difference between a Numerator and Denominator? Answer: make up something silly. For example, the Denominator starts with a “D”, so it is the “down” part of a fraction. Or, there […]

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When dividing by a fraction the answer gets bigger?

July13

That’s right. Here is a typical problem that asks you to divide a number by a fraction: Think of it this way – how many halves are there in 30? Answer: Well, there will be 60 halves in 30. So the answer will be 60 + 10 = 70. Note that we do the division […]

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What fraction of the square is the pink triangle?

April27

Using your knowledge of Areas, work out what fraction the pink triangle is of the square (answer soon in post support):

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Fractions the Wacky Way

May29

Students often struggle with combining different fractions. This technique is a good quick way to learn how to add, subtract, multiply and divide fractions and it certainly helped my students work out some quite complex fractions: There are many other “Wacky” ways of doing Maths (but I would not recommend them all) which may help […]

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Test your fractions…

January30

This is a good online challenge to test your Fractions knowledge (you can even send your results to your teacher!). The goal is to match the given fraction to the choice of decimals. There are several levels.

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Get your lasers ready – Refraction Begins!

October29

Refraction is an online puzzle game for teaching fractions – aimed at Primary but suitable for Junior High. The game is not obviously a lesson in fractions, but requires knowledge of fractions to succeed. In Refraction, the player must partition lasers in order to power spaceships containing various animals who have gotten stuck in space, […]

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Post Support

Where are you? the North Pole

Prize Object Puzzle: If Sue does not know where the prize is in the first question, it can’t be under the square. She must have been told it is under another shape. Apply this same logic to Colin. It is then obvious that the prize cannot be under a yellow object. That helps Sue eliminate her yellow shapes. Got the idea?

Algebra Puzzle: Answer = 1

Popular Math Problems Answers: 1, 1

Number of tabs? According to Lifehacker, the ideal number of tabs you should have open is nine. Yes, a single digit. To some, this is like playing a piano and only using a fraction of the notes!

Worst Graph? Where to start. What a visual mess and even some of the lines merge and are impossible to follow. A graph is a visual display of data, with the goal to identify trends or patterns. This is a spider’s web of information which fails to show a clear pattern at all. Solution? Well, different colors would help, or why not group in two or three graphs where trends are similar?

Number of different nets to make a cube is eleven – see this link

Homework Puzzle; The total value of the counters is 486, so halve this to get 243. Now, arrange the counters to equal this amount twice.

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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