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AEIS Math 17/08/2009

Date: 17/08/2009
Day: wednesday
Students present: Michael, William, Susan, and Henry
Teacher:Jimmy
Subject: Math
Topic: Number patterns

Concept taught:Recognising simple sequences , general term of sequence, sum of sequence.

Comments on students: Michael was able to discern between General term and Nth term accurately.Henry william and susan and quite new to this topic but they are picking up quite well.Able to sum up all the sequence on page 73.
Improvement:Ability to discern the pattern of a number sequence can be improved with more practice.

jc students (15/08/09)

Math Date: 15/08/2009
Day: Thursday
Students present: Solomon, samuel , Boni
Teacher: Jimmy
Subject: Math
Topic: Trigo( 2nd lesson)

Concept taught:More examples on R formulae , addition formulae , product formulae.(A2.13,2.14,,2.15,2.17,A2.7,eg.2A(3,4,5(ii),6,8(iii))

Comments on student: Boni knocked her head onto one of the book shelf which results in her emotions becoming unstable.We carried on with the lessons.All were able to prove lhs=rhs for eg 2.13.Revised with them ATSC once more.They tried A2.14 and realised that the order in the addition of sin is important .Tried q4 on page 393 n were able to reduce the 2 trigo functions into a single trigo function using the R formula.They proceeded to solve the equation for x using what they have been refreshed on ASTC. Went on to prove 5(ii).Solomon was able to develop left hand side and right hand side til they reaches a consensus.Explained to them that they will still score some marks if they do it this way but not full.All 3 later realised that it can be solved by changing the cot into cos and sin functions on the right hand side.Went on to do question 8(iv) , able to do it confidently:)
Improvement: Boni needs to practise more.Solomon still needs to restyle his presentation.Samuel 's improving fast.

jc math13/08/2009

Math Date: 13/08/2009
Day: Thursday
StudentsPresent: Solomon, samuel , Boni
Teacher: Jimmy
Subject: Math
Topic: Trigo

Concepts taught:Reference angle , pythagorean theorem , addition forumlae, product formulae, R formulae,.

Comments on students:Explained to them that cos(2x+67.38) can be varied which leads to a corresponding change in F(x).In a way we can find out the max and min value of f(x). Samuel and Solomon was able to digest this concept. Boni took quite some time to sink in.· Proceed on to try A2.11.All of them were stucked initially. Explained on white board that one must first simply the equation to only non -power trigo functions. Zoomed in on how to simplify 4sin2xcos2x and 6 sin square2x to sin and cos function only. Proceed on to apply R formula. Solomon and Samuel was able to adjust the resultant R formula to the final question. Went on to illustrate on the usage of product formulae on question A2.15.3 of them knows where to look for from the formula list. Samuel was able to do this question. His only problem lies in his messy hand writing which not only affects his overall presentation but also his judgement on the flow of work· Went to do egA2.2 Hinted to them the initial approach of drawing the triangle. Solomon and Samuel was able express to work out the answer.

Improvement: samuel's handwriting can improve his overall presentation and his own judgement.

JC students(11/08/2009)

Math Date: 11/08/2009
Day: Tuesday Students
Present: Solomon, samuel , Boni
Teacher: Jimmy
Subject: Math
Topic: Normal distribution

Concepts taught:· Approximating normal to the binomial distribution and also approximating normal to poisson distribution.).Central limit theorem and also the applicability of CLT on various questions.Discussed how N(unknown samples) can be found by manipulating the probability equation.

Comments on students: Generally all understands this topic well in comparison to pure math.

Improvement: To be absolutely clear on what to use for mean and variance in different cases.
To be able to apply the correct method on different distribution.

AEIS Math Date: 13/08/2009

AEIS Math Date: 13/08/2009
Day: wednesday
Students present: Michael, William, Susan, and Henry
Teacher:Jimmy
Subject: Math
Topic: Percentage

Concept taught:· Marked price and selling price,GST inclusive.

Comments on students:·Able to discern what is the difference between marked price and selling price.They were initially confused marked price belongs to 100 percent or selling price.Did their home work on q 7 and q8. They have problems getting rid of the R on question 7.Explained further that it can be ridden by cancelling it from the nominator and denominator.

Improvement:Read up on the concepts to clear up their doubts on selling price and marked price.

Home work given:Q40(pg 58), Q60(q7,q8)