Sacred Heart Mathematics Department : Connect 3B Unit 8 – A4 – Factors, Indices and Graphs – 10 lessons Extension Connect 3R Les- Lesson title son Use prime factor decomposition to find the LCM of denominators of fractions in order to add or subtract them Find the HCF and LCM of algebraic expressions 1 Know and use the index laws for multiplication and division of positive integer powers Begin to extend understanding of index notation to include negative powers Begin to extend understanding of index notation to fractional powers Recognise that the index laws can be applied to fractional powers Recognise and operate with simple surds Substitute positive and negative numbers into linear expressions and expressions involving powers 2 Investigate the gradient of parallel lines and lines perpendicular to these lines 5 Plot graphs of quadratic and cubic functions. 3 4 6 Know some of the properties of quadratic functions. 7 Use a graphical method to solve simultaneous equations 8 Form and solve linear simultaneous equations 9 10 Oral objectives: 8.1 Prime factors 8.2 Indices Objectives Starter FrameNo work Find the prime factor decomposition of a number Use prime factor decomposition to find the LCM of denominators of fractions in order to add or subtract them Use index notation for integer powers and simple instances of the index laws 8.3 Laws of indices Know and use the index laws for multiplication and division of positive integer powers 8.4 Substitution Substitute positive and negative numbers into expressions involving powers 9 10 8.6 Finding the gradient Given values for m and c, find the gradient of lines given by equations of the form y = mx + c Find the gradient of a drawn graph 25 Solve problems involving direct proportion using algebraic methods, relating algebraic solutions to graphical representations of the equations 26 Badger 27 Use index notation for squares and cubes Know cubes of 1, 2, 3, 4, 5 and 10 and the corresponding roots Use a calculator to find squares and cubes Use index notation for small positive integer powers of 10 Recognise prime numbers up to 100 Find the prime factor decomposition of a number Badger: Yr8 Use index notation for small positive integer powers Simplify algebraic expressions using index notation Distinguish between 2n and n2 Substitute positive integers into expressions involving small powers Know that algebraic operations follow the same conventions and order as arithmetic operations Plot graphs of the form y = mx + c, on paper and using ICT Recognise that equations of the form y = mx + c correspond to straight-line graphs Badger: Yr8 44 Support Connect 3G Badger: Yr8 24 Plot simple distance–time graphs and displacement–time graphs End of unit test. Mental Arithmetic. Review Test Badger: Yr8 10Ticks: L5, P 33 Recognise the effects of m and c in the equation y = mx + c of a straightline graph Discuss and interpret simple distance–time graphs and displacement– time graphs Badger: Yr8 10Ticks: L6 10Ticks: L6 11 8.5 Equations of straight-line graphs 8.7 Direct proportion and graphs 8.8 Distance–time and displacement– time graphs 8.9 Interpreting distance–time and displacement–time graphs TESTING ICT/Additional Resources Investigate straight-line graphs of the form y = mx + c Construct functions arising from reallife problems and plot their corresponding graphs Discuss and interpret graphs arising from real situations Key words: prime factorisation, factor, factor tree, denominator, lowest common multiple, power, indices, index, simplify, substitution, equation, y-intercept, gradient, direct proportion, ratio, origin, distance, displacement, speed