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- NZ Year 4 Maths
- Organizing Data

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Get Started NowStart now and get better maths marks!

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Get Started Now- Intro Lesson: a4:52
- Intro Lesson: b5:45
- Intro Lesson: c6:19
- Intro Lesson: d7:30
- Lesson: 1a1:21
- Lesson: 1b1:54
- Lesson: 1c1:39
- Lesson: 1d3:10
- Lesson: 1e1:45
- Lesson: 2a2:57
- Lesson: 2b2:13
- Lesson: 2c4:46
- Lesson: 3a2:29
- Lesson: 3b2:56
- Lesson: 3c4:26
- Lesson: 3d2:52
- Lesson: 4a4:10
- Lesson: 4b4:30
- Lesson: 4c5:54
- Lesson: 4d5:09

In this lesson, we will learn:

- How to read a pictograph
- How to understand the symbols and scales for pictographs
- How to choose a scale when creating a pictograph

- A
**pictograph**is a graph that displays**frequency data**using picture**symbols** - It is a great visual tool to show numbers in different categories from data collection experiments (i.e.
**surveys**)

- The parts of a pictograph can include:
- a
**title**to describe the data collected **categories**listed vertically (and sometimes, the category**column names**)- (sometimes) a
**vertical label**to describe the types of categories - a
**key**to show the**symbol**and**scale**(how much each symbol is worth)

- Symbol scales can use whole symbols, half symbols, or even fractional symbols:

- To choose a scale for a data set, find a
**common factor**for all the numbers (a number that can be multiplied into all the numbers of the data set). It is that more than one scale will work. - Ex. a data set with a scale of 4 could also use a scale of 8 (doubled); the pictograph will look neater and use less symbols to represent numbers

- IntroductionIntroduction to Pictographs:a)What is a pictograph?b)How to read a pictographc)Understanding symbols and half symbol scalesd)Choosing a scale for your data
- 1.
**Understanding symbols and scale**

Fill in the blanks about the symbols and scalea)If represents 6 oranges, then represents ___ oranges.b)If represents 60 pizza slices, then represents ___ pizza slices.c)If represents ___ pencils, then represents 5 pencils.d)If represents 6 gummy bears, then represents ___ gummy bears.e)If represents ___ donuts, then represents 6 donuts. - 2.
**Reading and understanding data displayed on a pictograph**

Use the pictograph to answer the questionsa)How many of each type of apple was sold?b)How many apples were sold in total?c)Redraw the pictograph with a different (bigger) scale. - 3.
**Reading and understanding data displayed on a pictograph (with half symbols)**

Use the pictograph to answer the questionsa)Fill in the table for the number represented by the symbols.b)How many butterflies did he catch in total?c)How many times as many monarchs did he catch as swallowtails?d)How many more white cabbages did he catch than swallowtails? - 4.
**Creating a pictograph**

Answer the questions for creating a pictographa)Look at the table of data. What is the scale for the pictograph? The symbol of a circle will be used.b)Draw in the symbols for the pictograph to display the data.c)Order the most common favorite color to the least favorite.d)If there are actually 321 students, did everyone take the survey?