Unit 4: Factors, Multiples, Primes, Powers & Sequences Level 1 & Level 2 Counting on and back in 1s and 10s from and back to 0. Level 3 (≈ Grade G/F) Count on and back in 10s and 100s from a 2 or 3 digit number. Level 4 (Grade E) Count on and back in 0.1s and 0.01s from any number. Level 5 (≈ Grade D) Recognise simple sequences of numbers, including odd and even, up to 50. Recognise, describe and continue basic number patterns given numerically (4, 7, 10… etc) and diagrammatically. Recognise, describe and continue number patterns given numerically (3, 8, 13, 18… etc) and diagrammatically, including square and triangle numbers etc. Recognise and continue sequences including those made from geometric patterns. Understand the definition of a multiple and find multiples of a given number. Use this to determine the divisibility of a number. Recognise and describe the relationships multiple, factor and prime. Find multiples and factors of numbers and find HCF and LCM of simple pairs of numbers. Know the relationship between square numbers and square roots. Use prime factors to find the prime factor decomposition of any number. Use index notation for positive indices only, in particular the powers of 10. Unit 4: Factors, Multiples, Primes, Powers & Sequences Level 5 (≈ Grade D) Level 6 (≈ Grade C) Level 7 (≈ Grade B) Level 8 and E.P. (≈ Grade A/A*) Recognise and continue sequences including those made from geometric patterns. Recognise when a sequence is arithmetic. Generate linear algebraic sequences. Find and describe in words and symbols the rule for the next term or nth term of a sequence where the rule is linear. Recognise geometric sequences and appreciate other sequences that arise. Generate quadratic algebraic sequences. Find and describe in words and symbols the rule for the next term or nth term of a sequence where the rule is quadratic. Find multiples and factors of numbers and find HCF and LCM of simple pairs of numbers. Use prime factors to find the prime factor decomposition of any number. Use index notation for positive indices only, in particular the powers of 10. Express a number as a product of its prime factors and use this to find the HCF/LCM of two numbers. Know the relationship between powers and roots. Know and use the index laws for multiplication and division of positive, negative, integer and fractional powers.