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Perhaps it comes down to level of expertise on the educator's behalf. If we have a closet full of math clothing, we can find the most comfortable items for every student. 

# data[].attributes.subject
Perhaps it comes down to level of expertise on the educator's behalf. If we have a closet full of math clothing, we can find the most comfortable items for every student. 

# data[].attributes.body
I'm interested in who is selecting these 'old' mathematical ideas. Is it textbook writers? Our MoE through the curric? Our admin? Or is it us, teachers?

# data[].attributes.body
We have access to some much more than our parents (Ipads, laptops, calculators) how could we not use it?

# data[].attributes.body
Maybe instead of using the word old, we should use the word fundamental... Practices and teaching styles can become dated, but students need to learn the basics

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Younger siblings still need clothes - we can't send them out into the world naked. Who decides what is old mathematics, that gets trimmed away and forgotten. Euclidean geometry still works...so I don't like the idea of forgetting old mathematics that persist and are still very relevant. Of course, we could explore these concepts in better ways, with new tech, for example. Old concepts get a renovation...not forgotten.

# data[].attributes.body
What's wrong with using something old?  Sometimes it fits the second child better that it did the first.  With previous experience we can make alterations and make it better for the second.

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I agree, but i think it's about the delivery of the lesson and the activities/problems that children do that need to be adjusted. The mathematic content is not what needs to change

# data[].attributes.body
I agree but unfortunately we're stuck in the old type of thinking what mathematics is and how it should be taught. My students are really enjoying open ended questions and collaborating with others but I feel bad for them as I feel like I'm not preparing them for the next years techer's type of teaching... also I feel like my students math skills (as they aren't expected to do math quickly or aim for correct answers) will be judged and labeled as "not good at math".

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imposed ideas are not owned, there is no personal connection or ownership. It is easy to just do and be lazy then to challenge oneself. However a mix of old and new can work well together.  "One persons junk is another persons treasurer"

However so many students believe that rote learning is the best way that they learn is it guarantees them getting the right answer if they follow the steps, unfortunately and fortunately there are to many kinds of problems and you can't memorize all the steps. They are comfortable with the old clothing it is a safety net. No fear of doing it wrong.

I believe that all styels of learning and teaching need to be mixed

# data[].attributes.body
I agree...I think that the new curriculum is helping us to shift our way of thinking about these pieces of 'old mathematics' to something more modern

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Some pieces of old clothing do fit comfortably...The quote seems to be saying that "old maths" is of no use. I disagree

# data[].attributes.body
I think some "old" pieces are necessary...what may be comfortable for one person may not for another
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