1. WELCOME BACK! As you wait for the session to begin, you have a chance to play Target Number! Read the directions on your paper. Use the cards on the top row to write as many equations as you can for which the solution is the target number: 6. Target Number

2. Grade 4 Mathematics 2013 - 2014 Katie Hammack, Melissa Gotard, & Caroline Chucko August 20, 2013

3. By the end of today’s session, we will:  Share 4 th grade CCPS Mathematics updates for the 2013-14 school year  Explore multiplication of multi-digit numbers using arrays  Develop an understanding of the Common Core Standards in Grade 4 - Unit 2 and the application of the Standards for Mathematical Practice in this unit.  Review Unit 2 assessments

4. 2 Facts and a Fib 34 x 8 is: A. 272 /8 B. About 240 C. 174 + 90 + 8

5. 2 Facts and a Fib 176 x 4 is: A. < 9 x 100 B. 17 tens + 6 ones C. 1,689 - 985

6. YOUR TURN 2 Facts and a Fib 46 x 29 is: A. B. C.

7. 4th Grade Wikispace http://ccpsgrade4math. wikispaces.com/home

9. Locker Problem As you work through this problem, complete the chart with the Standards for Mathematical Practices that are emphasized in the task. www.illustrativemathematics.org

10. Arrays On the grid paper, draw an array that represents 7 x 24. Label the sides with the factors and record the product. Build the array with Base -10 blocks, in the most efficient way, to represent the expression.

11. Write the multiplication equation that matches the arrays below. 6 x 14 = 84 22 x 43 = 946 (Remember to use your tools strategically)

12. Unit 2 – Addition and Subtraction

13. Instructional Guide – Unit 4.2 As you review IG 4.2, use the following symbols to make notes directly on your guide: An idea or strategy that you LOVE! Those things that SQUARE with your thinking. (i.e. you already do or are familiar with) ? Those things that you have a QUESTION about … new idea, confused by what is written, etc.

14. Grade 3 Post-Test 2012-13 11. 390 – 239 = n n = _________ Show your thinking: ******************************************************************* 11. 151 1pt. Aside from the traditional algorithm, students may have also used these strategies: Partial Differences Using Addition 390 – 239 = 239 + 100 = 339 300 -200 = 100 339 + 1 = 340 90 – 30 = 60 340 + 50 = 390 60 – 9 = 51 100 + 51 = 151 100 + 1 + 50 = 151

15. Grades 2 and 3 Addition Algorithms

16. Grades 2 and 3 Subtraction Algorithms

17. Standard Algorithm for Addition and Subtraction 4.NBT.4 Fluently add and subtract multi-digit numbers using the standard algorithm By mid-year, all 4 th grade students should be able to add and subtract multi-digit numbers using the standard algorithm. By the end of the year, all 4 th grade students should be able to fluently add and subtract multi-digit numbers using the standard algorithm.

18. Fact Fluency http://www.carrollk12.org/instruction/instruction/ele mentary/math/curriculum/basicfacts/default.asp For more resources and fact assessments, click on the link below:

19. Unit 2 Assessments Prerequisite Concept Check (PCC 4.2) Formative Assessments Unit 2 Check-up

20. What will YOU do if you’re stuck?

21. Best wishes for a wonderful school year!