757 prompts matching "Find my error: Using proportional reasoning to solve"
Worked example: Solving a 2 by 2 system by the matrix method
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WAEC pitfalls: Writing the coefficients out of order in the matrix
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Real-life Nigeria: Recognising a system that has no unique solution
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WAEC pitfalls: Joining the plotted points of a curve with straight lines
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Real-life Nigeria: Reading the maximum or minimum value off the graph
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Worked example: Solving a quadratic graphically by adding a straight line
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Real-life Nigeria: Where a graphical method beats an algebraic one
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Worked example: Testing the vertices of the feasible region
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WAEC pitfalls: Ignoring the non-negativity constraints
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Real-life Nigeria: A production mix problem for a small business
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Teach me: Drawing a frequency polygon from a frequency table
You are my personal SS3 Mathematics tutor. Teach me drawing a frequency polygon from a fre
Worked example: Estimating the median from a cumulative frequency curve
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WAEC pitfalls: Reading the quartiles off the wrong axis
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Real-life Nigeria: Comparing two distributions from their ogives
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Teach me: Mean deviation, and what it measures
You are my personal SS3 Mathematics tutor. Teach me mean deviation, and what it measures,
Worked example: The mean deviation of an ungrouped data set
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WAEC pitfalls: Dividing by the wrong number of items
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Real-life Nigeria: Mean deviation set beside standard deviation
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Teach me: When a pie chart suits data better than a bar chart
You are my personal SS3 Mathematics tutor. Teach me when a pie chart suits data better tha
Real-life Nigeria: Choosing the right chart for a given set of data
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