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Introduction to Data Handling

Yesterday, we started the topic by experiencing the 'data collection' process.

There are altogether 4 stages:

What we want to find out:
How many social media accounts does each member in S1-06 have

STAGE 1: Pose the Question
You were asked how many social media accounts you have, however, not allowed to clarify.

Through this activity, we learnt the need to be specific when we gather data. Otherwise, the raw data we collected would not be accurate.


STAGE 2: Collect the data
There are several ways to collect data. Some of them are:

• Online form
• Secondary data (from another source)
• Interview 
• By observation

STAGE 3: Organise and Display Data
Having collected the RAW data: 

we organised them in a FREQUENCY TABLE: 

For DISPLAY, we can use a bar chart, pie chart or a pictogram to present them
You will "receive" an activity that guides you how to use create a frequency table and create charts in Google Sheet.


STAGE 4: Analyse and Interpret the Data

From the table, we can find

• MODE, which is the most frequently occured number
• MODE = 3 (with frequency = 7)

We also learnt there's an OUTLIER, i.e. 24.


NEXT step...
We'll need to figure out how to find the MEAN and MEDIAN when given the frequency table.

Class Discussions: Word Problem involving Inequalities

We attempted this question in class:

Below is the worked solution we discussed:

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(Asynchronous lesson) Solving Word Problems Systematically

The same link is available in the asynchronous lesson assigned the Google Classroom.
It is inserted in the Maths blog for ease of reference at class discussion.

Click HERE to access Padlet.

Making connection: Polya's 4 steps for Problem Solving & Solving Word Problems

Inequalities: Practice 4 - Connecting to Number Lines & Reasoning out Relationships

In this activity, you will discuss the questions with the assigned partner(s) for Practice 4.

On your own, you must to submit your answers via the GoogleForm.

Estimated duration: 20-30 minutes

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This practice requires you solve the inequalities and think how it could be presented in a number line (making connection in the visual form)

• You did this in Unit 2 (without solving inequalities)

Questions 10 to 20 is where the discussion becomes useful. 

- to look "deeper" "within" the inequality (Relationships!)

Click HERE to attempt the task.

The quiz will be automarked - check your answers after submission.

Preparation for Class Test 2

Dear S1-06

In preparation of Class Test 2, we are doing the following:

• HW Class Test 2 Revision (I): Focus on Algebra (administered in T3W2, to be submitted by 16 June)
• HW Class Test 2 Revision (II): Focus on Percentage + Ratio, Rate & Speed (to be administered in T3W3 THU, to be submitted by next MON 22 JUN)
• Timed Revision: 40min paper - to be administered on tomorrow

What other "resources" do we have (apart from daily practices/ exercises) - Summaries...

• We have also prepared the visual representation on Algebra
• We'll be doing the visual representation on Percentages and Ratio, Rate & Speed to help us retrieve what we did in these topics.

REMINDER: MATHS CLASS TEST 2

This info is available in the Google Classroom

Solving Equations involving Fractions: Class Work 4 (p10) cont'd: Parts (c) (d)

These are the 2 questions discussed in class:

Solving Equations involving Fractions: Class Work 4 (p10)

We did part (a) in class today:

Take a look at how we can approach (b)

On your own, try (c) and (d)