751 prompts matching "IGCSE-style question: Factorising a quadratic before solving it"
WAEC pitfalls: Assuming a positive angle of rotation means clockwise
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Real-life Nigeria: Rotational symmetry and its order
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WAEC pitfalls: Assuming a negative scale factor simply shrinks a shape
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WAEC pitfalls: Assuming matrix multiplication is commutative
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Real-life Nigeria: The identity matrix, and what it does
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Explain back: The inverse of a 2 by 2 matrix and the formula for it
I have just studied the inverse of a 2 by 2 matrix and the formula for it in my SS3 Mathem
Worked example: Verifying an inverse by multiplying back to the identity
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WAEC pitfalls: Dividing by a determinant of zero
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Word problem: A two-commodity pricing problem solved by matrices
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WAEC pitfalls: Writing the coefficients out of order in the matrix
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WAEC pitfalls: Joining the plotted points of a curve with straight lines
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Explain back: Rearranging an equation so it can be solved from a drawn curve
I have just studied rearranging an equation so it can be solved from a drawn curve in my S
WAEC pitfalls: Giving a graphical answer to more accuracy than the scale allows
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Practice set: Solving simultaneous equations graphically
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WAEC pitfalls: Ignoring the non-negativity constraints
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WAEC pitfalls: Reading the quartiles off the wrong axis
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Spot my mistake: Letting positive and negative deviations cancel
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WAEC pitfalls: Dividing by the wrong number of items
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Explain back: Drawing a bar chart with equal bar widths
I have just studied drawing a bar chart with equal bar widths in my SS3 Mathematics class.
Worked example: Reading a quantity from a pie chart given the total
Act as my SS3 Mathematics tutor. Take me through one full worked example on reading a quan