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C O L U M N G R A P h Session 1
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Numeracy lesson and differentiation
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Content Environment Process Product
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C O L U M N G R A P h We all have the same width Same width
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Key words Data: information Survey: a way of collecting information Column graph: Column graphs are an excellent way to show results that aren't continuous - especially samplings such as surveys. Conduct: organize and carry out. Census: it is a survey that surveys the whole population or group. Horizontal axis: this is a line running across the graph. It has a label beneath it. Vertical axis: this is a line running up the side of a graph. It has a label next to it. Scale: The scales on horizontal or vertical axes are similar to the scales found on many measuring instruments. A scale is a series of numbers that are increasing or decreasing by the same amount. Part of the skill of interpreting a graph is reading the scales on the axes. Each scale will be labelled with the unit of measurement that has been used.
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What is a survey? Helps to find the views of the whole community or group Surveys are a primary source of information Survey Uses questions A way of collecting information Census Sample Surveys the whole population Surveys a selected group
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How to conduct a survey 5- Graph your results
,,,. 5- Graph your results 4- Choose a suitable graph 3- Record your results in a table 2- Ask people your question 1- Think of a question How to conduct a survey Type of sport Basketball Volleyball Soccer Netball Number of students 7 5 9 2
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DIFFERENT TYPES OF GRAPHS
Line graphs Sector graphs Picture graphs Bar graphs Step graphs Column graphs
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Column graph Column graphs have a series of vertical blocks. Column graphs can be distinguished from histograms because the blocks always have gaps between them while histograms have no gaps.
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Use of column graphs A column graph is used to show relationships between groups. Column graphs are an excellent way to show results that are one time, that aren't continuous - especially samplings such as surveys.
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Origin of the words graph and data
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How to construct a column graph.
1-Draw two axes: one vertical and one horizontal. Make sure you leave room at the edge of the page for your labels. 2- Always place numbers on the vertical axis. Non-numerical groups are on the horizontal axis 3- Label each axis 3- Columns should be of the same width and should not touch at all. 4- Leave half of the column width at the start. 5 - The scale should go up evenly and cover the largest and smallest values. 6- Include scientific units where appropriate. 7- Include a title to explain what the graph is about. Your title should start with: Graph of……..
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Things you should follow when drawing a column graph
use grid paper Leave half of the column width at the start Column graphs have a series of vertical blocks. Always place numbers (numerical groups)on the vertical axis. Columns should be of the same width and should not touch at all. use a pencil Non-numerical groups are on the horizontal axis. Draw in the two axes with a ruler
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Graph of parents’ region of birth
Columns Graph of parents’ region of birth Title All columns should have the same width The Vertical axis going up shows frequency (Numbers) 1 cm Number of students Numbers are placed on the vertical axis Legend A gap at the start which is half of the column width (0.5 cm or 5mm) Region of parents’ birth The spacing between the columns is kept the same The horizontal axis (going across) shows the items
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A census was carried out by 7A who has a total of 21 students to find out important information.
This information include the following: Region of parents’ birth Region of students’ birth Month of birth Number of siblings
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5 6 1 8 Draw a suitable graph for your data.
This table shows parents’ region of birth of 7A 2014. Parents’ region of birth Australia Pacific Islands Asia Middle East other Number of students 5 6 1 8 Draw a suitable graph for your data.
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Title Graph of parents’ region of birth Add a title
Step 1: Draw the axes Step 2: Always place numbers on the vertical axis. Non-numerical group on the horizontal axis. Step 3: Label the axis Step 4: Setting up the scales. Count how may squares represent 1 on vertical axis. Number of parents On the horizontal axis, Leave 0.5 gap for the start (1 square) (half of the column width) 1 cm Step 5: Putting up the values and drawing the columns columns should be of the same width (1cm).. Middle East Australia Pacific Islands Asia Other Region of parents’ birth
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Students to get a grid paper and draw one at the same time.
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Graph of parents’ region of birth
Number of parents Region of parents’ birth
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Graph of parents’ region of birth
Number of parents Region of parents’ birth
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Title Region of students’ birth Number of students 18 6
1 cm Number of students 18 6 Australia Pacific Islands Asia Other Middle East Region of students’ birth
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Title Month of birth Month of birth 1st quarter = J,F,M
2nd quarter = A,M,J 3rd quarter = J,A,S 4th quarter = O,N,D Number of students 5 7 6 2nd quarter 1st quarter 3rd quarter 4th quarter Month of birth
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Title Month of birth Summer: D,J,F Autumn: M,A,M Winter: J,J,A
Spring: S,O,N Number of students 8 4 4 Autumn Summer Winter Spring Seasons
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Title Number of siblings Number of students 5 4 2 Number of Siblings 1
0 sibling 2 siblings 3 siblings 4 siblings 5 siblings 7+ 6 siblings Number of Siblings
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Station 2 Station 3 Station 4 Station 1
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Feedback from each student
Evaluation and Feedback from each student
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Student feedback and evaluation
Class: Date: Lesson:
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By Zani Alam
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