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

Grade 4 Mathematics Katie Hammack, Melissa Gotard, & Caroline Chucko August 20, 2013

By the end of today’s session, we will:  Share 4 th grade CCPS Mathematics updates for the 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

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

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

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

4th Grade Wikispace wikispaces.com/home

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

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.

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

Unit 2 – Addition and Subtraction

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.

Grade 3 Post-Test – 239 = n n = _________ Show your thinking: ******************************************************************* pt. Aside from the traditional algorithm, students may have also used these strategies: Partial Differences Using Addition 390 – 239 = = = = – 30 = = – 9 = = = 151

Grades 2 and 3 Addition Algorithms

Grades 2 and 3 Subtraction Algorithms

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.

Fact Fluency mentary/math/curriculum/basicfacts/default.asp For more resources and fact assessments, click on the link below:

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

What will YOU do if you’re stuck?

Best wishes for a wonderful school year!