Multiple approaches to logical arguments
I can construct a logical argument.
Multiple approaches to logical arguments
I can construct a logical argument.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- A logical argument does not have to only be algebraic.
- Geometrical reasoning can be used to argue that something is true.
- Values can be used to demonstrate whether something is true.
Keywords
Apex - The apex is the point (vertex) which is the greatest perpendicular distance from the base.
Congruent - If one shape can fit exactly on top of another using rotation, reflection or translation, then the shapes are congruent.
Hypotenuse - The hypotenuse is the side of a right-angle triangle which is opposite the right angle.
Common misconception
Proofs have to be solely algebraic and do not involve diagrams.
Proofs involve showing that a conjecture holds for multiple cases (general case). A diagram can represent multiple cases.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
A (purple) -
$$y=x+2$$
B (blue) -
$$y=-x+2$$
C (pink) -
$$y=2x$$
D (green) -
$$y=x-2$$
E (black) -
$$y={1\over2}x-2$$
A (blue) -
$$y = x^3$$
B (purple) -
$$y= x^2 - 2$$
C (pink) -
$$y = x^2$$
D (green) -
$$y = (x-2)^2$$