Number Sequence: Pair Discussion

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Number Sequence: Recamán's sequence - we see. we hear

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Misleadng Graphs

LINK: https://venngage.com/blog/misleading-graphs/

Looking at numbers, statistics from another perspective: Information VS misinformation

 

Introduction: Data Handling - Statistical Investigation

Some new words/ phrases are introduced during the lesson:

• Data points, Sample Size (n ≥ 30)
• Raw data
• Respondents/ Participants
• Survey (as an action/ process or an instrument to collect information)
• Mean, Mode, Median
• Frequency Table, Tally

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[Bite Size] Review of Solving Inequalities

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[Bite Size] Solving Simple Inequalities

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[Bite Size] Review of Unit 5 HW1 (common errors)

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[Bite Size] Solving WORD Problem (1)

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[Bite Size] Review of Solving of Word Problems involving Algebra (apply POLYA's 4-steps)

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Discussion: Meaningful Equation... Area of a Sphere (p17 Class Work 4)

Here's something to help us remember to formula for the Surface Area of a Sphere 😉

Discussion: Meaningful Equation... Area of Trapezium (Study Notes p16 Example 5)

To derive the formula for the area of a Trapezium 

(application of factorisation)

[Challenging Question] Algebra - Factorisation (Hybrid)

Clear and systematic solution👏👏👏 , presented by Irina and Jeremy

 

[Bite Size] Solving Algebra: Solving Simple Fractional Equation

Complete this task today so that feedback can be given to you for reference when you do HW1

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[Bite Size] Algebra: Solving Equations - Articulating the Balancing Act

[To be completed by end of tomorrow SAT 3 July] 

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Objective: 

Describe how to solve an equation by balancing it in the process. 

Issue to address: The use of layman descriptions by "bring the number over", "cancel the denominator".... 

Attempt ONE question only. 

Refer to detailed instructions in the first column of the padlet. 

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[Challenging Question] #9 Application of Factorisation

A handout comprisilng the following questions was given in class.

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[UPDATE on 7 July] Solution received 

From Irina

• Very clear and systematic presentation of working. 👍
• Approach: Substitution is cleverly used to make the working easy to read and simplify 👍
• Answers are correct. 👍

[Point to ponder] Instead of using x = 6987650, what if we use x = 6987654? 

Try that to see how the expression would look like now.

[To improve] Use descriptive word like "Let x = 6987650" instead of using a straight line, which could be mistaken as "minus"

From Ruihao

• Very clear and systematic presentation of working. 👍
• In Ruihao's working, you would notice that he exercised his 'eye power' and notice he could applied special product to factorise part of the expression (in the course of simplifying the expression 👍
• Answers are correct 👍

[Bite Size] Solving Simple Linear Equations

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[Challenging Question] Application of Factorisation

The following question was posted on the whiteboard yesterday. 

• You may email me your proposed solution, if you have one. 
• The correct one will be posted in the Maths blog (here). 

[Updated 4 July] Proposed solution by Aravind 👍

• Method (approach) is clearly written... close to getting the correct answer
• [To mprove the clarity of the meaning making] Write out the given expression (px - q)(px + q) below the product of factors found to make the comparision. 

[Updated 4 July] Proposed solution by Irina 👍

• Method and answers are clearly written

[Bite Size] Algebra - Factorisation (Consolidation)

Click HERE to access the padlet