AC9M7N02
Year 7
Mathematics
AC9M7N02 | Year 7 Mathematics: Number
Content Descriptor
Content descriptor represent natural numbers as products of powers of prime numbers using exponent notation
Strand
Number
Substrand
Number
This content descriptor sets out learning for Year 7 Mathematics. Use it to plan lessons and assessment with the Australian Curriculum v9.
Elaborations
- • Elaboration applying knowledge of factors to strategies for expressing natural numbers as products of powers of prime factors, such as repeated division by prime factors or creating factor trees; for example, 48=6\times8=2\times3\times2\times2\times2=3^1\times2^4=3\times2^4
- • Elaboration developing familiarity with the sequence 1, 2, 4, 8, 16, 32, 64, 128, 256, 512 and powers of 2; the sequence 1, 3, 9, 27, 81, 243, 729 and powers of 3; and the sequence 1, 5, 25, 125, 625 and powers of 5
- • Elaboration solving problems involving lowest common multiples and greatest common divisors (highest common factors) for pairs of natural numbers by comparing their prime factorisation
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