Topic 1 Number and Algebra 

SL 1.1  Operations with numbers in the form a × 10k where 1 ≤ a < 10 and k is an integer. 

SL 1.2  Arithmetic sequences and series. Use of the formulae for the nth term and the sum of the first n terms of the sequence. 

             Use of sigma notation for sums of arithmetic sequences. Applications. 

             Analysis, interpretation and prediction where a model is not perfectly arithmetic in real life. 

SL 1.3 Geometric sequences and series. Use of the formulae for the nth term and the sum of the first n terms of the sequence 

            Use of sigma notation for the sums of geometric sequences. Applications. 

SL 1.4 Financial applications of geometric sequences and series: • compound interest • annual depreciation. 

SL 1.5 Laws of exponents with integer exponents. Introduction to logarithms with base 10 and e.

            Numerical evaluation of logarithms using technology.

SL 1.6 Approximation: decimal places, significant figures. Upper and lower bounds of rounded numbers. Percentage errors. Estimation. 

SL 1.7 Amortization and annuities using technology.

SL 1.8 Use technology to solve: • Systems of linear equations in up to 3 variables • Polynomial equations 

Videos Set 1:

Videos Set 2: