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Posts tagged with online tools

Reflection and Mirrors; an online interactive

June15

The concepts of reflection can be difficult to introduce to students. This Physics interactive may help. Click on the image to begin (note: an account is not needed):

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Instant solutions at mathway.com

October17

Mathway boasts that it “provides students with the tools they need to understand and solve their math problems. With millions of users and billions of problems solved, Mathway is the #1 problem solving resource available for students, parents, and teachers.” What does H3 think? Yes, this is a useful problem-solving tool and the graphical functions […]

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DESMOS – Your new best graphing friend!

May26

Desmos is a great online graphing tool and ideal for teaching and learning at all levels. It is intuitive and really versitile and highly recommended by H3 Maths as “Your new best graphing friend.” Give it a go!

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Free math resources with Wolfram Alpha

February4

Net Texts, the free content management platform for open educational resources(OER) is partnering with Wolfram to provide access to online math practice problems through the Wolfram Problem Generator. This exciting partnership will help classroom learning via a flexible learning space. Note: free sign up is required for access

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Online Graphing Calculators

July11

There are many free online graphing calculators available. These are great tools to help you visualise algebraic functions and save on the cost of expensive calculators – at least until more senior grades. Here is one example from https://www.desmos.com:

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Online Conversion of Measurements

March17

There are many good online conversion tools for changing distances, weights, areas and volumes, etc. This is one that is quite easy to use: You might ask why this skill is useful? Good question. Well, consider the human errors that led to a Boeing plane running out of fuel at 41,000 feet. Why? Largely because […]

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Great WebTool for Measurement in Math

July26

Here is a great little website to use with classes when doing measurement (feet or metres) in Mathematics. It is a very cool tool for designing a room or apartment, etc. and includes measurements which leads to calculations on perimeters, area, materials required, etc. Click on the image below to give this a try-out:

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Post Support

Largest number between o and 1 million which does not contain the ‘n’ is 88

 

Rotation SAT Problem: Answer: 4 (see: https://www.youtube.com/watch?v=FUHkTs-Ipfg)

 

Which number has its letters in alphabetical order? Answer: F O R T Y

Hidden Rabbit? Clue: check the trees

How long for the stadium to fill? 45 minutes.

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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