Pearson Progression Step Q Scheme Marks AOs and Progress descriptor 1a States M1 3.1b 5th Differentiate Makes correct substitutions: M1 1.1b simple trigonometric Uses the appropriate trigonometric addition formula to write M1 2.2a functions. Groups the terms appropriately A1 2.2a (4) 3.2b 5th 1b Explains that as 0,and M1 h → Differentiate Concludes that this leaves A1 3.2b simple So if trigonometric functions. (2) (6 marks) Notes Pearson Progression Step Q Scheme Marks AOs and Progress descriptor 2a Differentiates obtaining and differentiates obtaining M1 1.1b 6th Differentiate Makes an attempt to substitute the above values into the product M1 2.2a the product rule. rule formula: Finds M1 1.1b Fully simplfies using correct algebra to obtain A1 2.4 (4) 2b Makes an attempt to substitute = 2 into M1 ft 1.1b 6th t Differentiate Correctly findsand concludes that toy soldier was B1 ft* 3.5a using the product decreasing in height after 2 seconds. rule.
Q Scheme Marks AOs Pearson Progression Step and Progress descriptor 1a States M1 3.1b 5th Differentiate simple trigonometric functions. Makes correct substitutions: M1 1.1b Uses the appropriate trigonometric addition formula to write M1 2.2a Groups the terms appropriately A1 2.2a (4) 1b Explains that as h → 0,and M1 3.2b 5th Differentiate simple trigonometric functions. Concludes that this leaves So if A1 3.2b (2) (6 marks) Notes Q Scheme Marks AOs Pearson Progression Step and Progress descriptor 2a Differentiates obtaining and differentiates obtaining M1 1.1b 6th Differentiate the product rule. Makes an attempt to substitute the above values into the product rule formula: M1 2.2a Finds M1 1.1b Fully simplfies using correct algebra to obtain A1 2.4 (4) 2b Makes an attempt to substitute t = 2 into M1 ft 1.1b 6th Differentiate using the product rule. Correctly findsand concludes that toy soldier was decreasing in height after 2 seconds. B1 ft* 3.5a
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