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#### Erica's Errors On Functions and Graphs

(12)
Erica's got yet more homework that she's struggling with, this time on modulus inequalities, sketching functions, finding inverses and composite functions. As usual she needs someone to explain what's gone wrong and correct her work. Designed to create discussion between students and between teachers and students.
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(8)
Erica has made some silly mistakes on her quadratics homework, involving factorising, solving , completing the square, functions and the discriminant. Your students' task is to find the errors, correct them and explain what Erica has done incorrectly. This should generate discussion in class.
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#### Erica's Errors On Algebraic Expressions

(10)
Erica is taking A level mathematics but is making silly errors in her homework. Can your students spot and correct the errors, explaining what Erica has done wrong. These are designed to create discussion and reinforce understanding of the topics. This is thefirst A level version of &quot;Clumsy Clive&quot; which covers the GCSE curriculum.
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#### Erica's Errors On Simultaneous Equations and Inequalities

(7)
Erica is struggling a little again and needs your help to correct what she's done and then tell her what she has done wrong. This allows students to discuss what they would do and check through solutions carefully.
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#### Erica's Errors On Trigonometric Ratios

(5)
Erica has a homework involving the sine and cosine rules as well as trigonometric functions. She thinks she's made mistakes; your students' task is to help Erica spot and correct the mistakes, explaining what she has mixed up. Designed to cover the new A level course and encourage discussion.
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#### Erica's Errors On Vectors

(5)
Vector notation this time for Erica, and the usual issues have arisen. as with all the others, can you check Erica's homework for errors, correct and explain what she did wrong. Designed for discussion etc.
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#### Erica's Errors On Trigonometric Identities and Equations

(7)
Erica's struggling again - please help her sort out her misunderstandings. This is, like all the others, design to create discussion and tap in to the new curriculum and question style.
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#### Erica's Errors On Sequences and Series

(6)
Erica is getting a bit lost on arithmetic and geometric sequences and series. Could you please help her sort out her homework? Her errors will need explaining so that they aren't made again. A task designed to encourage discussion.
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#### Erica's Errors On Straight Line Graphs

(10)
Erica has straight line graphs homework but her answers don't agree with the answers given. Can you explain to her where she has gone wrong as well as correct her homework? This should lead to a discussion between students over common mistakes and misconceptions. My error (oh, the irony) is now corrected.
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#### Erica's Errors On Algebraic Methods

(5)
Erica is struggling with algebraic division, the factor theorem and proof. She needs your help to correct her mistakes before explaining what she's done incorrectly. This is designed to create discussion and embrace the new curriculum that likes getting students to spot mistakes.
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#### Erica's Errors On Exponentials and Logarithms

(7)
Erica has recently had a homework on exponentials and logarithms (including natural logarithms) and is really srtuggling. Can you help her by correcting her answers and explaining her mistakes? Designed to encourage discussion and the ability to check work carefully, as the new A level course seems to like.
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#### Erica's Errors On Circles

(5)
Erica is tackling equations of circles but is, as usual, making errors. Can you help Erica correct the errors and explain what she has done incorrectly. designed to get students to check work carefully and discuss what has gone wrong.
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#### Erica's Errors On Integration

(5)
All sorts of calculus issues for Erica here! She really needs your (your class') help to correct her work and explain where she's gone wrong. There are common mistakes here for student to find and discuss in class.
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#### Erica's Errors On Differentiation 2

(4)
Erica is struggling whilst differentiating trigonometric functions, using the product, chain and quotient rules and parametric equations. She is desperate - please help her! Designed for students to demonstrate understanding and to encourage discussion.
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#### Erica's Errors On Binomial Expansion 2

(6)
Erica is struggling when she has negative and fractional indices to expand using the binomial expansion. Can your class help her out and explain what she's done wrong please? Designed to demonstrate deep understanding and to encourage discussion in class.
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#### Erica's Errors On Vectors 2

(4)
Erica is struggling with 3D vectors here, including unit vectors, magnitudes and areas of triangles. Designed for the new A level syllabus it doesn't get as &quot;difficult&quot; as they did in Core 4 but this should allow students to demonstrate their understanding.
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#### Erica's Errors On Differentiation

(4)
Erica has started calculus but is struggling yet again. Please help correct her work and explain what she has done wrong in each case. Designed to promote discussion in the classroom.
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#### Erica's Errors On Numerical Methods

(3)
Erica is struggling with iteration and Newton-Raphson, as it's on the new &quot;Pure 2&quot; syllabus. Can you help her sort out her homework answers and explain what she's done wrong?
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#### Erica's Errors On Binomial Expansion

(6)
Erica is struggling with the binomial expansion; can you (and your class) help Erica correct the answers she has arrived at and explain to her what she has done incorrectly. This is designed to create discussion and help students become familiar with new style questions. Actual thing now linked - sorry!
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#### Erica's Errors On Integration 2

(4)
Erica is struggling with integrating e^x, is getting confused between integrating 1/(x) and 1/(x^2) and basic trigonometric integration. Can someone help her out? This is designed to help students discussion and prove their understanding.
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#### Erica's Errors On Binomial Expansion 3

(5)
Erica's teacher thought she needed more practice on the binomial expansion with negative and fractional indices, including estimating a root using an expansion. She has, as ever, got it all wrong so needs your help. Designed to help students prove their understanding.