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What is the topic?

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

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What is the topic?

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  1. What is the topic? Clicker questions as your clue  Grade 8 Math

  2. The most/least popular kind of music/sport/fast food -From Grade 8 St. Columba C.S.

  3. 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 • E. Jazz

  4. What do you think is the most popular kind of sport in this class? • A. Football • B. Soccer • C. Hockey • D. Volleyball • E. Swimming

  5. What do you think is the most popular kind of fast food in this class? • A. McDonald • B. Burger King • C. Pizza Pizza • D. KFC • E. Subway

  6. What is the topic for today? • A. Number Sense • B. Data management • C. Patterning and Algebra • D. Measurement • E. Geometry and Spatial Sense

  7. Review: Tally chart • Tally Chart: A method of counting frequencies, according to some classification, in a set of data

  8. Review: Mean • Mean: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

  9. Review: Ratio • Ratio: 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

  10. Hands on activity -grade 8

  11. Activity: Textbook Page 90 • Gather cubes in two different ways • Divide into 5 groups • A reporter from each group • Individual: takes turn to repeats for 3 times with two ways: hand up and hand down • Individual: fills in Tally chart and calculate the number • Individual: calculate means for your two ways • Group: fill in Mean and Ratio chart • Class: guess which chart to use

  12. Different types of graph -grade 8

  13. 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?

  14. Graphs • Type • Title • Labels on the axes • Units for the scales • Legend

  15. What type of graph is this? • A. a bar graph • B. a pictograph • C. a line graph • D. a scatter plot • E. a stem-and-leaf plot • F. a circle graph

  16. What type of graph is this? • A. a bar graph • B. a pictograph • C. a line graph • D. a scatter plot • E. a stem-and-leaf plot • F. a circle graph

  17. What type of graph is this? • A. a bar graph • B. a pictograph • C. a line graph • D. a scatter plot • E. a stem-and-leaf plot • F. a circle graph

  18. What type of graph is this? • A. a bar graph • B. a pictograph • C. a line graph • D. a scatter plot • E. a stem-and-leaf plot • F. a circle graph

  19. What type of graph is this? • A. a bar graph • B. a pictograph • C. a line graph • D. a scatter plot • E. a stem-and-leaf plot • F. a circle graph

  20. What type of graph is this? • A. a bar graph • B. a pictograph • C. a line graph • D. a scatter plot • E. a stem-and-leaf plot • F. a circle graph

  21. Homework: page 91 • 1. 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?

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