Screen CAsts
Topic One: Working With Integers
what is a Signed Number ...Direction and MagnitudeA quick look at the idea of an integer as telling both magnitude and direction from zero
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Adding integersLooking at combining integers. The addition is broken down to same signs and opposite signs.
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Subtracting IntegersBreaking down the idea of subtracting integers. Focusing on the relationship between subtracting positives and adding negatives.
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Topic 2: Working With Fractions
What Is A Fraction?
In this short, we look at what a fraction is and what its parts tell us.
Multiplying Fractions
We use equivalent fractions and intuition to try and understand multiplying fractions. Then comes the 'rule' for efficiency.
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Equivalent Fractions
Essential to the understanding of arithmetic with fractions, this video aims at having students be able to create equivalent fractions (note...a quick introduction to mu;multiplying fractions by 'rule' is used here, better treatment follows).
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Addition And Subtraction Of Fractions
Here we use the idea of equivalent fractions and like terms to add and subtract fractions.
Dividing Fractions
An attempt to understand through equivalent fractions and intuition is made, before introducing reciprocals, and 'the rule'.
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Topic 3: Algebraic Manipulation
What is Algebra?
Talking about algebra as the language of math. This video distinguishes between algebra and algebraic manipulation.
The Importance Of Zero
A huge concept for those solving simple equations. In this video we look at the unique property of zero under addition and subtraction.
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Collecting Like Terms
A very brief look at gathering like terms.
The Importance Of One
Another huge concept for those solving simple equations. In this video we look at the unique property of one under multiplication and division.
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A Closer Look At Evaluation
Looking at the idea of 'plugging in' a value and working 'inside out' to find the value of the expression. A brief treatment of order of operations is also done here.
Solving: Examples One And Two
In these two shorts we look at two simple equations to solve, focusing on working 'outside in'.
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