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Year 11 Accelerated Group Revision List DT2 2016 (Ms Campbell / Mrs Press) Know Year 8 – 10 Learning Intentions and Learning Intentions for the following topics covered to date. TOPIC 1 – Algebra 1 - Linear Equations and Inequations (T3 /T4) TOPIC 2 -Transformations (T6) TOPIC 3 - Similar Shapes (T3/T4/T6) TOPIC 4 - Trigonometry 1 (T3/T4) TOPIC 4 - Trigonometry 1 (T3/T4) TOPIC 6-Indices and Standard Form (T3/T4/T6) TOPIC 7 Formulae 1 – Changing the Subject (T3/T4 /T6) TOPIC 1 – Algebra 1 - Linear Equations and Inequations (T3 /T4) Assumed Knowledge I can Solve simultaneous linear equations graphically You should be able to Distinguish different role played by letter symbols in algebra and corresponding vocabulary - expression, equation, inequality and formulae, relationship Understand counter-example e.g. x2=4 x=2’ is wrong since (-2)2=4 Multiply and divide algebraic fractions a c ac a ad c a d x = and = x = b d bd b bc d b c (remembering to cancel HCFs) Add and subtract algebraic fractions a c ad bc = (or identify the LCM of b and d ) b d bd Solve algebraic equations which include linear algebraic fractions 1 1 x3 x 2 to include (x-3)- (x-2) = 6 possibly written as =6 4 3 3 4 Solve two simultaneous equations by elimination Solve simple linear inequalities Solve double inequalities Display your solution on a number line Know how the range of values required (real numbers / positive integers/negative integers) will affect your answer I can TOPIC 2 -Transformations (T6) ** Translations and Reflection T5 covered by most students in Yr 10 2014-2015 – work separately with remaining students and give as homework You should be able to Describe the order of rotational symmetry of a shape Recognise when a shape has been translated Describe the translation fully in vector notation Translate a shape Recognise when a shape has been reflected (KS3) Find the line of reflection (lines parallel to coordinate axes and y = + x) Describe the reflection fully (i.e. reflection in….. x axis, y axis, line y=3, line x=2, y = + x) Reflect a shape in a given line (lines parallel to coordinate axes, y = + x) Recognise when a shape has been rotated State the angle and direction of rotation (90 degrees clockwise or anticlockwise and 180 degrees) Find the centre of rotation for above angles Describe the rotation fully Rotate a shape through 90 / 180 degrees about any given centre using tracing paper or otherwise Recognise when a shape has been enlarged and know that this can describe a shape getting smaller as well as larger Find the centre of enlargement Find the scale factor of the enlargement (positive and negative scale factor) Be able to describe the enlargement fully Be able to enlarge a shape Describe inverse transformations fully Understand how transformations are related by combinations and inverses I can TOPIC 3 - Similar Shapes (T3/T4/T6) You should I can Know that any two shapes are similar if and only if corresponding angles are equal and corresponding sides paired between shapes are in the same ratio Know that two triangles are similar if two pairs of angles are equal and that this automatically implies corresponding sides are in the same ratio Be able to prove that two shapes are similar Know that all enlargements are similar Know that when two shapes are similar corresponding sides paired within each shape are equal Be able to calculate the lengths of missing sides in similar shapes Understand the effect of the scale factor of an enlargement on Area and Volume (T5 / T6) Understand the inter-connections between ratios for Length, Area and Volume and be able to use this to calculate missing lengths, areas and volumes for similar shapes (T6) TOPIC 4 - Trigonometry 1 (T3/T4) You should be able to Label the sides of a right angled triangle opposite, adjacent, hypotenuse based around an angle θ° in the triangle Know the trigonometric ratios for right angled triangles, sine, cosine and tangent and their connection to similar triangles Identify which trigonometric ratio to use Given a right angled triangle with a known side and angle θ, identify which trigonometric ratio to use and apply this to find an unknown side Given a right angled triangle with two known sides, identify which trigonometric ratio to use and apply this to find angle θ Solve 2D problems involving Right-angled triangles Isosceles triangles Angles of elevation and depression Bearings Solve 3D problems involving cubes and cuboids, applying Pythagoras’ theorem and trigonometry to find lengths of face and space diagonals and angles I can TOPIC 5 - Algebra 2 - Quadratic Expressions and Equations (T3/T4/T6) Assumed Knowledge Solve equations in the form x³ + x² = 20 by trial and improvement to 1 or 2 d.p (revision of KS3) You should be able to Expand algebraic expressions to include (KS3 but recap) 3(2x-5)-4(x+1)= 2x-19 (2x – 3)(x – 5)= 2x² - 13x + 15 (x – 4)(x + 4)= x² - 16 (a + b)² =a² + 2ab + b² Factorise a simple algebraic expression by taking the HCF outside the bracket Use four-term factorising e.g. xy - 3x + 2y – 6 = (x+2)(y-3) T4 Recognise and factorise a quadratic expression ax²+bx+c (a1 T4) Recognise and factorise the difference of two squares x²-16=(x-4)(x+4) and 9x²-16=(3x-4)(3x+4) (to include 2x2 – 18 = 2(x-3)(x+3) T4 ) Solve a quadratic equation in the form ax²+bx+c = 0 by factorising (including a1 T4) Simplify more complex algebraic expressions such as algebraic fractions (T4) – may require factorising of numerator and / or denominator Solve a quadratic equation in the form ax²+bx+c = 0 by using the quadratic formula T4 Solve a variety of practical problems which involve proving and ultimately solving a quadratic expression – to include more complex 2 3 formats such as + = 1 (T4) x 2 2x 1 Interpreting solutions and ignoring impossible solutions. Distinguish different role played by letter symbols in algebra and corresponding vocabulary - identity Use algebra to prove identities such as (2n+1)2 +n – 3n(n+1) Ξ (n+1)2 or to identify coefficients in (x-a)2 +b T6 I can TOPIC 6-Indices and Standard Form (T3/T4/T6) Assumed Knowledge Be able to find multiples of a number Be able to list the factors of a number (rainbow lines) Be able to find the highest common factor of two numbers from lists Be able to find the prime factors of a number Be able to express a number as a product of primes Be able to use index laws for multiplication and division (positive integer powers, excluding negative power answers) to evaluate 3² x 33 = 35 and 45 / 42 = 43 Know that 31 = 3 and 30 = 1 You should be able to Write a number as a product of its prime factors including index form (KS3) Use product of prime factors to find the HCF and LCM of two whole numbers Appreciate that a square number, when written as a product of its prime factors in index form has even powers (including use to identify the smallest whole number 24 needs to be multiplied by to get a square number) Know and apply the laws of indices for integer and fractional indices Use the laws of indices to simplify algebraic expressions involving indices (Negative and Fractional T6) Simplify algebraic fractions written in index form 3x 6x 2 y (e.g. = ) 3 4y2 8 xy Use the laws of indices to evaluate numerical answers for all indices Negative and Fractional T4 Express numbers in standard index form using integer powers of 10(T6) Calculate with numbers in standard index form using both positive and negative integer powers of 10 with and without a calculator (T6) e.g. 3.2 x10 4 1.6 x10 3 Solve exponential equations e.g. Solve 23-x = 16 or Solve 32x =9 T6/T4 I can Yr 9 14-15 Cover Yr11 15-16 Yr 9 14-15 Cover Yr11 15-16 I can TOPIC 7 Formulae 1 – Changing the Subject (T3/T4 /T6) You should be able to 1. Extend changing the subject of formulae (KS3) to include more difficult cases where the subject appears once e.g. Transform A = r2 to make r the subject (this example met for UM task KS3) 100( s c ) and p = to make s the subject (T6) c 2. Extend changing the subject of formulae (KS3) to include cases where the subject appears in more than one term 100( s c ) e.g. p = to make c the subject (T6) c I can