Tuesday, 20 September 2011

Weds 21st Sep; Practice Paper 1 Feedback and Revision

LEARNING OBJECTIVE: TO revise weaker areas of Syllabus from mistakes and omissions from the practice paper

SUCCESS CRITERIA: You will be able to answer similar questions in future test papers.

STARTER: Hand outr papers and give students 5 mins to talk about / share their results

LESSON.

Question 1 – Estimating results of a complex calculation. Look at question 1 on IWB and talk about how to round.

Estimate answers to these problems

19.7 x (9.62 -2.72)

(34.75 ÷ 5.8) x 4.7

(18.52 ÷ 38.5)2

(78.2 ÷7.3)/ (2.32 x 14.52)


 

Question 2: Using a given sum to solve similar problems

If 3 x 4 = 12 What else do we know

If 2.3 x 4.5 = 10.35 What else to we know?

From the above sum can we work out

  1. 2.3 x 45
  2. 23 x 4.5
  3. 23 x 45
  4. 0.23 x 0.45 etc

If 45.6 x 23 = 1048.8. how do we quickly work out 45.6 x 24


 

Question 3 – Practical Applications of Percentages/Fractions

Question 4 – Substitution and rules of BODAMS.

Question 5 - Function machines using algebra

INPUT......Add 3......MULTIPLY by 2.... Output. One value gives an output 3 times the input, can you find it

What number gives half of its input value

Question 6. Reminder of how to find LCM and HCF of Two or more numbers

Question 7: Percentage Increase

REMEMBER: Difference / Original x 100

Starting weight 5 kg One month later weighed 6.5 kg. What is Percentage Increase?

Question 8. ALGEBRA and BODMAS and Expanding a quadratic (Multiplying two brackets together – lots of examples


 

PLENARY: Check on confidence now – These two pages completed would give33/66 marks and would give a grade B

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