DIVISION WITH DECIMAL DIVIDENDS 10-23-14. GOAL:  I can use basic facts to approximate decimal quotients with two-digit divisors, reasoning about the.

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Presentation transcript:

DIVISION WITH DECIMAL DIVIDENDS

GOAL:  I can use basic facts to approximate decimal quotients with two-digit divisors, reasoning about the placement of the decimal point.

AGENDA  Fluency Practice  Application Problem  Whole group lesson  Problem Set  Exit Ticket

RENAME TENTHS AND HUNDREDTHS  94 tenths  372 tenths  9 hundredths  980 hundredths

DIVIDE DECIMALS BY 10  3,800 ÷ 10 (Draw a place value chart)  380 ÷ 10  2.7 ÷ 10  0.49 ÷ 10

DIVIDE DECIMALS BY MULTIPLES OF 10  1.2 ÷ 4 How can we write the dividend in tenths?  1.2 ÷ 40 How can we make this easier?  8 ÷ 20  0.35 ÷ 5  0.35 ÷ 50

WHOLE GROUP INSTRUCTION  39.1 ÷ 17  Let’s round the divisor first, then our dividend.  What is our estimated quotient?

3.91 ÷ 17  Round the divisor first, then the dividend.  What would the equation look like to find the estimated quotient?  Why is estimating useful?

63.6 ÷ 73  63.6 pounds of rice were put into 73 bags. About how many pounds of rice were in each bag?  Make sense of the problem-MP1  Understand what it is asking you to do

6.36 ÷ 73

11.72 ÷ 42

PROBLEM SET  You are to work on this independently  I will have groups at my kidney table and I will try to meet with everyone.  If you have a question ask a shoulder partner first, then come ask me.  You have 15 minutes to get this done!

EXIT TICKET  This is going to show me what you learned from today’s lesson. Please do your best!

GOAL  Who can tell me our goal for today in your own words?