1. Performance Task
Take Up

2. Step #1 Pick out the Important Information
20% of each type of book was sold
(which is 20% of the total books!!)
**means 80% of books remain
2240 books remain!!
2/7 of the books are Science
5/7 of the books are Math

3. Step #2 How many books at the start?
80% of _______ is 2240
So, there were 2800 books at the start of the week

4. Step #3 Number of each type of book
2800 ÷ 7 = 400
2/7 of the books were Science
2 * 400 = 800
5/7 of the books were Math
5 * 400 = 2000

5. Step #4 Conclusion
Therefore, the bookshop owner had 800 Science books and 2000 Math books at the start of the week.

6. Feedback

7. General
Don’t change to decimals and round … many, many, many did this.
2/7 = Then you use this … answers are not accurate … get 638 instead of 640.
Look at rubric to see what is expected
Reflecting
Communication

8. Sample of Not Showing Work

9. Sample of Great Communication

10. Sample of Great Reflecting