757 prompts matching "Teach me again: Judging whether a calculated answer is reasonable"
Explain back: The gradient of a chord set against the gradient of a tangent
I have just studied the gradient of a chord set against the gradient of a tangent in my SS
Spot my mistake: Reading the gradient off the curve instead of off the derivative
Act as my SS3 Mathematics tutor. Work a question on reading the gradient off the curve ins
Spot my mistake: Calling every stationary point a maximum
Act as my SS3 Mathematics tutor. Work a question on calling every stationary point a maxim
Spot my mistake: Differentiating with respect to the wrong variable
Act as my SS3 Mathematics tutor. Work a question on differentiating with respect to the wr
Explain back: Why the constant of integration is needed
I have just studied why the constant of integration is needed in my SS3 Mathematics class.
Spot my mistake: Forgetting the constant of integration in an indefinite integral
Act as my SS3 Mathematics tutor. Work a question on forgetting the constant of integration
Spot my mistake: Subtracting the limits in the wrong order
Act as my SS3 Mathematics tutor. Work a question on subtracting the limits in the wrong or
Spot my mistake: Adding vectors by adding their magnitudes
Act as my SS3 Mathematics tutor. Work a question on adding vectors by adding their magnitu
Spot my mistake: Subtracting the position vectors in the wrong order
Act as my SS3 Mathematics tutor. Work a question on subtracting the position vectors in th
Spot my mistake: Adding the column vector to the wrong coordinate
Act as my SS3 Mathematics tutor. Work a question on adding the column vector to the wrong
Spot my mistake: Multiplying matrices whose orders do not match
Act as my SS3 Mathematics tutor. Work a question on multiplying matrices whose orders do n
Spot my mistake: Forgetting to swap the leading diagonal when inverting
Act as my SS3 Mathematics tutor. Work a question on forgetting to swap the leading diagona
Spot my mistake: Multiplying by the inverse on the wrong side
Act as my SS3 Mathematics tutor. Work a question on multiplying by the inverse on the wron
Spot my mistake: Plotting a point from the wrong row of the table
Act as my SS3 Mathematics tutor. Work a question on plotting a point from the wrong row of
WAEC pitfalls: Giving a graphical answer to more accuracy than the scale allows
Act as my SS3 Mathematics tutor. Show me the mistake candidates most often make on giving
Spot my mistake: Shading the wrong side of a boundary line
Act as my SS3 Mathematics tutor. Work a question on shading the wrong side of a boundary l
Spot my mistake: Plotting cumulative frequency at the class midpoint
Act as my SS3 Mathematics tutor. Work a question on plotting cumulative frequency at the c
Spot my mistake: Letting positive and negative deviations cancel
Act as my SS3 Mathematics tutor. Work a question on letting positive and negative deviatio
Spot my mistake: Drawing sector angles that do not total 360 degrees
Act as my SS3 Mathematics tutor. Work a question on drawing sector angles that do not tota
Explain back: Decimal places and significant figures distinguished
I have just studied decimal places and significant figures distinguished in my SS3 Mathema