# To complete a bar graph

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## Memorandum

The educator must help the learners to obtain the information on their birthdays in class so that they can complete the bar graph.

Let the learners raise their hands to show in which month their birthdays are. Count how many learners have birthdays in that month. The learners write this information in the circle above each month.

for example: three children have their birthdays in January. The 3 is written in the circle above Jan.

This can be a class activity.

It is also a good opportunity to learn the names of the months in the correct sequence. It is not required of them to write the names of the months at this stage.

Give the learners enough time to discuss their findings, make deductions and draw conclusions after they have completed the bar graph.

## Activity: to complete a bar graph [lo 5.4, lo 5.5]

Bonny and Tommy are 8 years old and their birthday is on 13 May.

Then they will be ________________________________ years old.

• They want to know when your birthdays are. Do you know when your birthday is?
• Now you must help me! (Do you know the names of the months?)
• Put up your hand if I mention the name of the month in which your birthday falls. I will count how many friends have a birthday in each month.
• Write this number in the circle above the name of the month.
 Jan. Feb. March Apr. May June July Aug. Sept. Oct. Nov. Dec.
• Now we can complete the birthday graph.

Make an X to represent each friend in the month in which his or her birthday falls.

1. In which month(s) do most of the friends have their birthdays?

_____________________________________________________________________

2. In which month(s) do the fewest of the friends have their birthdays?

_____________________________________________________________________

3. What in the graph can change?

_____________________________________________________________________

4. Why can it change?

_____________________________________________________________________

5. What cannot change?

_____________________________________________________________________

Draw a birthday cake with candles on. I want to see how old you are.

 LO 5.4 LO 5.5

## Assessment

Learning Outcome 5: The learner will be able to collect, summarise, display and critically analyse data in order to draw conclusions and make predictions, and to interpret and determine chance variation.

Assessment Standard 5.4: We know this when the learner reads, interprets and reports on information in own and a peer’s representations of data;

Assessment Standard 5.5: We know this when the learner reads and interprets data presented in simple tables and lists.

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