Upload
erasto
View
77
Download
3
Tags:
Embed Size (px)
DESCRIPTION
What is the topic?. Clicker questions as your clue Grade 8 Math. The most/least popular kind of music/sport/fast food. -From Grade 8 St. Columba C.S. What do you think is the most popular kind of music in this class?. A. Classical Music B. Rock Music C. Metal Music D. Hip-hop Music - PowerPoint PPT Presentation
Citation preview
Clicker questions as your clue Grade 8 Math
What is the topic?
The most/least popular kind of music/sport/fast food-From Grade 8 St. Columba C.S.
What do you think is the most popular kind of music in this class?A. Classical MusicB. Rock MusicC. Metal MusicD. Hip-hop MusicE. Jazz
What do you think is the most popular kind of sport in this class?
A. FootballB. SoccerC. HockeyD. VolleyballE. Swimming
What do you think is the most popular kind of fast food in this class?A. McDonaldB. Burger KingC. Pizza PizzaD. KFCE. Subway
What is the topic for today?
A. Number SenseB. Data managementC. Patterning and AlgebraD. MeasurementE. Geometry and Spatial Sense
Review: Tally chartTally Chart: A method of counting
frequencies, according to some classification, in a set of data
Pet Tally Marks Number
Cat
Dog
Fish
Review: MeanMean:the mean of a set of numbers is
found by dividing the sum of the numbers by the number of numbers in the set
Mean= Sum of the numbers Number of numbers
Review: RatioRatio: a comparison of quantities with the
same units. A ratio can be expressed in ratio form or in fraction form; for example, 3:4 or ¾
-grade 8
Hands on activity
Activity: Textbook Page 90Gather cubes in two different waysDivide into 5 groupsA reporter from each groupIndividual: takes turn to repeats for 3 times
with two ways: hand up and hand downIndividual: fills in Tally chart and calculate the
numberIndividual: calculate means for your two waysGroup: fill in Mean and Ratio chartClass: guess which chart to use
-grade 8
Different types of graph
Graphs Graphs are pictures that help us
understand amounts. These amounts are called data. There are many kinds of graphs, each
having special parts.What are the elements of a graph?
GraphsTypeTitleLabels on the axesUnits for the scalesLegend
What type of graph is this?A. a bar graphB. a pictographC. a line graphD. a scatter plotE. a stem-and-leaf plotF. a circle graph
1st Qtr59%2nd
Qtr23%
3rd Qtr10%
4th Qtr9%
Sales
What type of graph is this?A. a bar graphB. a pictographC. a line graphD. a scatter plotE. a stem-and-leaf plotF. a circle graph Cate
gory
1
Catego
ry 2
Catego
ry 3
Catego
ry 4
048
12
Series 3Series 2Series 1
What type of graph is this?A. a bar graphB. a pictographC. a line graphD. a scatter plotE. a stem-and-leaf plotF. a circle graph Category 1
Category 2
Category 3
Category 4
0 1 2 3 4 5 6
Series 3Series 2Series 1
What type of graph is this?A. a bar graphB. a pictographC. a line graphD. a scatter plotE. a stem-and-leaf plotF. a circle graph 0.5 1 1.5 2 2.5 3
01234
Y-Values
Y-Values
What type of graph is this?A. a bar graph B. a pictographC. a line graphD. a scatter plotE. a stem-and-leaf plotF. a circle graph
What type of graph is this?A. a bar graphB. a pictographC. a line graphD. a scatter plotE. a stem-and-leaf plotF. a circle graph
Homework: page 911. Census or Sample?2. Which set of data match the circle
graph?3. How to interpret the graph to data?4. How to use stem-and-leaf plot?5. How to display data as a bar graph?6. what is the mean, median and mode?