Division Practice End  In a minute you will write as many DIFFERENT division facts as you can in 3 minutes.  When you’re finished your neighbor will.

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Presentation transcript:

Division Practice End  In a minute you will write as many DIFFERENT division facts as you can in 3 minutes.  When you’re finished your neighbor will look over your work and you’ll look over theirs.  Check to see if there work is correct. Tell your partner what division facts are easy for you.  Thumbs up if you understand.

Counting by Fractional Units Count by eighths from 1 eighth to 8 eighths and back to /8 2/8 3/8 4/8 (half way) 5/8 6/8 7/8 8/8 (1 whole)

Unit Fractions in a WHOLE I’ll say a unit fraction. You say how many there are in 1 whole. 1/5 5 FIFTHS

Unit Fractions in a WHOLE I’ll say a unit fraction. You say how many there are in 1 whole. 1/10 10 TENTHS

Unit Fractions in a WHOLE I’ll say a unit fraction. You say how many there are in 1 whole. 1/4 4 FOURTHS

Unit Fractions in a WHOLE I’ll say a unit fraction. You say how many there are in 1 whole. 1/3 3 THIRDS

Unit Fractions in a WHOLE I’ll say a unit fraction. You say how many there are in 1 whole. 1/8 8 EIGHTHS

Unit Fractions in a WHOLE I’ll say a unit fraction. You say how many there are in 1 whole. 1/2 2 HALVES

PROBLEM OF THE DAY Mr. Ray is knitting a scarf. He says that he has completed 1 fifth of the total length of the scarf. Draw a picture of the final scarf. Label what he has finished and what he still has to make. Draw a number bond with 2 parts to show the fraction he has made and the fraction he has not made.

Concept Development Part 1:Measure a line of length 1 whole. Get out your fraction strips and a ruler. Choose one (the parts do not matter) Draw a horizontal line with your ruler that is a bit longer than one of your fraction strips. Place a whole fraction strip just above the line you drew. Make a small mark on your line that is even with the left end of your strip. Label that mark 0 above the line. This is where we start measuring the length of the strip. Make a small mark on your line that is even with the right end of your strip. Label that mark 1 above the line. If we start at 0, the 1 tells us when we’ve travelled 1 whole length of the strip.

Part 2: Measure the fractions Place your fraction strip with halves above the line Make a mark on the number line at the right end of 1 half. This is the length of 1 half of the fraction strip. Label that mark 1/2 and Label 0 halves and 2 halves Make new lines for each fraction strip. Repeat the process to measure and label other fractions on a number line

Part 3: Draw number bonds to correspond to the number lines For each fraction strip Number line make a number bond. EXAMPLE: 0 0/2 1/2 1 2/ /2 What do both the number bond and number line show? Which model shows you how big the unit fraction is in relation to the whole? Explain how. How do your number lines help you make number bonds?

PROBLEM SET