Erlina Ronda

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solving systems of equation by elimination – why it works and how to teach it with conceptual understanding

Erlina Ronda posted an article on - Nov 24, 2009, 8:46 pm
Mathematical knowledge is only powerful to the extent to which it is understood conceptually, not just procedurally. For example, to solve a system of linear equation is to find a pair of values com...
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Features of good problem solving tasks for learning mathematics

Erlina Ronda posted an article on - Nov 23, 2009, 2:49 am
To acquire higher-order thinking skills (HOTS) the mind needs to engage in higher-order learning task (HOLT). A good task for developing higher-order thinking skills is a problem solving task. But no...
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Teaching through Problem Solving

Erlina Ronda posted an article on - Nov 13, 2009, 1:11 am
Problem solving is not only the reason for teaching and learning mathematics. It is also the means
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The heart of mathematics

Erlina Ronda posted an article on - Nov 11, 2009, 11:57 pm
Axioms, theorems, proofs, definitions, methods, are just some of the sacred words in mathematics. These words command respect and create awe  especially to mathematicians but deliver shock to many st...
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trigonometry – why study triangles

Erlina Ronda posted an article on - Nov 6, 2009, 3:23 am
We study trigonometry because it is useful. Its earliest and simplest use is to find the missing of a triangle. But mathematicians do not just study something because it is useful. More often, they st...
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Exercises, Problems, and Math Investigations

Erlina Ronda posted an article on - Nov 5, 2009, 6:51 pm
I love to ask this question to maths teachers: In your experience, in which part of your lesson do you think your students are really learning mathematics? Most of them will always share that it is wh...
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teaching absolute value of an integer

Erlina Ronda posted an article on - Oct 30, 2009, 8:17 pm
The tasks below are meant to deepen students’ understanding about the absolute value of a number and provide a context for creating a need for learning operations with integers.
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What is an integer?

Erlina Ronda posted an article on - Oct 30, 2009, 12:54 am
Here are some ideas pupils need to learn about integers: •A number represents a quantity. An integer is a type of number. An integer represents a quantity. •Integers are useful in representing opp...
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What is an integer?

Erlina Ronda posted an article on - Oct 30, 2009, 12:54 am

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Erlina Ronda is following the blog Campaign K-12

How to develop algebraic thinking through number operations

Erlina Ronda posted an article on - Oct 22, 2009, 10:11 pm
Here is a list of sample tasks and ways for developing algebraic thinking while learning about numbers and number operations. 1. Vary the “orientations” of the way you write number sentences. For ...
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What is algebraic thinking?

Erlina Ronda posted an article on - Oct 18, 2009, 2:08 am
In my post Arithmetic and Algebra, I wrote that it’s how you solve a problem that tells whether you are doing algebra or arithmetic, not the problem itself. Here’s a description of algebraic thin...
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Arithmetic vs Algebra

Erlina Ronda posted an article on - Oct 12, 2009, 8:05 pm

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what is mathematics?

Erlina Ronda posted an article on - Sep 18, 2009, 12:49 am

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All men are equal

Erlina Ronda posted an article on - Sep 16, 2009, 2:46 am

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