1. Topic E multiplying decimals STANDARD - 5.NBT.2, 5.NBT.3, 5.NBT.7

2. Objective: M ultiply a decimal fraction by single-digit whole numbers, relate to a written method through application of the area and place value understanding, and explain the reasoning used. Grade 5 Module 1 Lesson 11

3. MATERIALS NEEDED FOR THIS LESSON Place Value Chart Personal White Boards Teacher Student Teacher Pages Student Pages P roblem Set Exit Ticket Homework

4. Fluency Practice (10 minutes)

5. Take Out the Unit 5.NBT.1 4 minutes 1.234 = _________ thousandths Say the number: 65.247 76.358 = 7 tens _____ thousandths

6. 76.358 = 736 tenths _________ thousandths 76.358 = _________ hundredths 8 thousandths

7. Add and Subtract Decimals 5.NBT.7 6 minutes 7258 thousandths + 1 thousandth = 7 ones 258 thousandths + 3 hundredths = 7258 thousandths + 1 thousandth =

8. 7 ones 258 thousandths + 4 tenths = 6 ones 435 thousandths + 4 hundredth =

9. 6 ones 35 hundredths + 7 thousandths = 2 ones 37 thousandths + 5 tenths =

10. 9 tenths - 7 thousandths - 4 thousandths = 4 ones 8 hundredths - 2 ones = ___ ones ___ hundredths

11. 9 ones 708 thousandths - 4 tenths = 4 ones 582 thousandths - 3 hundredths =

12. 4 ones 73 thousandths - 4 hundredths =

13. Application Problem (5 minutes) After school, Marcus ran 3.2km and Cindy ran 1.95km. Who ran farther? How much farther?

14. Concept Development (35 minutes)

15. Problem 1 Multiplying decimals 3 x 0.2 ones tenths

16. Problem 2 Multiplying decimals 3 x 0.3 ones tenths

17. Problem 3 Multiplying decimals 4 x 0.3 ones tenths

18. Problem 4 Multiplying decimals 2 x 0.43 ones tenths hundredths 4 tenths + 3 hundredths 2 0.8 + 0.06 = 0.86

19. Problem 5 Multiplying decimals 2 x 0.423 ones tenths hundredthsthousandths 4 tenths + 2 hundredths + 3 thousandths 2 1.2 + 0.04 + 0.006 = 0.846 8 tenths 4 hundredths 6 thousandths

20. Problem 6 Multiplying decimals 4 x 0.423 ones tenths hundredthsthousandths 4 tenths + 2 hundredths + 3 thousandths 4 1.6 + 0.08 + 0.012 = 1.692 16 tenths 8 hundredths 12 thousandths

21. Problem 7 Multiplying decimals 6 x 1.21 1 one + 2 tenths + 1 hundredth 6 6 + 1.2 + 0.06 = 7.26 12 tenths 6 hundredths6 ones

22. 2 one + 4 tenths + 1 hundredth 7 14 + 2.8 + 0.07 = 16.87 28 tenths 7 hundredths14 ones Problem 7 Multiplying decimals 7 x 2.41

23. 2 one + 3 tenths + 4 hundredth 8 16 + 2.4 + 0.32 = 18.72 24 tenths 32 hundredths16 ones Problem 7 Multiplying decimals 8 x 2.34

24. Problem Set (10 minutes) Do Your Personal Best (Complete independently!)

25. Student Debrief (10 minutes) #3 students share work and articulate which units are being multiplied and composed into larger ones. Compare #1c and 1d.

26. EXIT TICKET (3 minutes) Complete the exit ticket and turn in...

27. HOMEWORK