Raisin Estimation
- 1. Organizing and Displaying Data
- 2. Mental Math Reflexes 10+10 30+13 175+426
- 3. Mental Math Reflexes 12+10 40+56 238+546
- 4. Mental Math Reflexes 15+10 24+61 693+168
- 5. Math Guess how many raisins are in the box. Write your guess on your record sheet. When you’re finished, share your guess with your group.
- 6. In this lesson… You will gather, guess, estimate, organize, and summarize data on the number of raisins in the box.
- 7. Count the number of raisins on the top. Use that number to estimate the number of raisins in the entire box. Write your estimate on your record sheet.
- 8. Guess vs. Estimate
- 9. Empty the box of raisins and count them. Count twice to double check. Write your answer on your record sheet.
- 10. What was your counting strategy?
- 11. How many raisins did you count?
- 12. Let’s organize our data using a line plot!
- 13. Landmarks
- 14. Landmarks Maximum—The largest number Minimum—The smallest number Range– The difference between the Maximum and the Minimum Mode—The most frequent number
- 15. What am I talking about? “ Way out by itself” “ The smallest numbers” “ Big clump” “ The table has some holes.”
- 16. Finally… What would you say is the typical number of raisins in a box of raisins?