Happy Friday  Today you need: Math spiral, math index cards, math binder, social studies binder, homework folder, agenda, & pencil pouch Morning Work Complete your weekly summary/KSS Week of: 10/7—10/11

Math Agenda Math Warm-Up Check homework Review Area Model Check with your math partner Check whole group Review Area Model Begin Partials Method Take away the rectangle and use Place Value to solve multi-digit multiplication problems

Math Warm Up Draw an Area Model for the following two problems: 56 x 3 50 6 6 x 3 = 18 3 50 X 3 = 150 Add Partial Products 70 8 8 x 4 = 32 4 70 X 4 = 280

Today’s Lesson: Two-digit by One-digit Multiplication

We have learned how to multiply… Using base ten pieces Ex/ 24 x 3 Using rectangles Ex/ 24 x 3 6 tens & 9 ones 60 + 9 = 69 20 + 4 20 x 3 = 60 4 x 3 = 12 3 60 + 12 72

THINK! Is there a way to use place value without having to draw the rectangle? 24 x 3 24 has 2 tens (20) + 4 ones If I multiply by PLACE VALUE: 20 x 3 = 60 4 x 3 = 12 72 20 + 4 20 x 3 = 60 4 x 3 = 12 3 +

Let’s Make a Connection… When we multiply by PLACE VALUE, which form are we writing the numbers in? 34 x 6 34 = 30 + 4 We are writing the number 34 in expanded form 6 = 6 Can we expand the number 6 anymore? Why or why not?

What if we take Away the Rectangle? Let’s look at this example…. 34 x 6 Expand the two digit number X 6 = 180 4 X 6 = 24 204 30 4 +

Let’s Practice This New Method Together… 45 x 8 34 x 9

More Practice Do the following problems with your math partner 68 x 5 15 x 4 74 x 9 22 x 9 34 x 7 56 x 2 12 x 6 44 x 3 If you finish early, more practice: p.227-228