multiplying and dividing fractions. fraction review

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MULTIPLYING AND DIVIDING FRACTIONS

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WHAT DO FRACTIONS LOOK LIKE? This slide will be up on the white board, I will ask students to come up to the board and write down what they would consider to be a fraction. This will get the students up and moving and interacting with the technology. If if is a smart board I will allow them to hold the pen to write on the board.

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Page 1: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

MULTIPLY

ING AND

DIVIDING FRACTIO

NS

Page 2: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

FRACTION REVIEW

Page 3: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

WHAT DO FRACTIONS LOOK LIKE?This slide will be up on the white board, I will ask students to

come up to the board and write down what they would consider to be a fraction. This will get the students up and moving and interacting with the technology. If if is a smart board I will allow them to hold the pen to write on the board.

Page 4: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

HOW WOULD SAY THESE FRACTIONS?I would have students take turns saying the fractions that have

been written on the board aloud. Most students will only say “5 over 4” or “one half”.

Page 5: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

WHAT IS ANOTHER WAY TO SAY THESE?I would aim to get students to realize that ¼ is the same as

saying 1 divided by 4.

Page 6: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

SIMPLIFYING FRACTIONS - DIVISIBILITYI will review how to simplify fractions with using the divisibility

rule. This is extremely important because the answer choices in STAAR are always simplified. This is a necessary skill for the STAAR test and fractions in general.

The fractions being simplified will be the examples students put on the board, if those are all already simplified I will add more examples.

Page 7: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

SIMPLIFYING FACTIONS – GREATEST OR LEAST COMMON FACTOR

I will review how to simplify fractions using the greatest or least common factor strategy. Students will work this out on the board with the fractions used as examples.

Page 8: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

SIMPLIFYING FRACTIONS – COMMON FACTORI will review how to simplify with finding the common factor.

Students will work problems on board with the example fractions once again so they can see that multiple strategies get you the same outcome.

Page 9: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

WHAT IS THE NUMERATOR? DENOMINATOR?Students will point these out to me.

Page 10: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

HOW DO YOU MULTIPLY WHOLE NUMBERS?Students will come up and show me how they multiply whole

numbers such as 2x2 or 4x8

Page 11: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

STRATEGIES FOR MULTIPLYING FRACTIONSI will then write down a problem on the board and show them

some problems with solutions and ask them to look for a pattern. I will lead them towards seeing rule addressed on the following slide.

Page 12: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

STRATEGIES FOR MULTIPLYING FRACTIONSI will show them the numerator x numerator over denominator

x denominator algorithm.

Page 13: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

WHAT IS YOUR FAVORITE STRATEGY?Students will then work independently on the worksheet I hand

out and selected students will show their favorite strategy by doing a problem on the board.

Page 14: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

DIVIDING FRACTION STRATEGIESI will show students how to solve problems using modeling

Page 15: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

DIVIDING FRACTION STRATEGIESWhat is a reciprocal?

I will have students write down examples of reciprocals

Page 16: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

DIVIDING FRACTIONS STRATEGIESI will teach them how to multiply by the reciprocal and stress

only the second fraction is changed.

Page 17: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

WHAT IS YOUR FAVORITE STRATEGY?Students will work independently on a worksheet handed out

while selected students work out the problems on the board with their favorite strategy

Page 18: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

TALK WITH YOUR GROUP ON WHAT YOU HAVE LEARNED IN CLASS TODAY

Page 19: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

SHARE WITH ME WHAT YOU HAVE LEARNED

Page 20: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

PRACTICE FOR FUN!Soccer Fun!

Address is below:http://www.math-play.com/soccer-math-multiplying-fractions-

game/multiplying-fractions-game.html

Page 21: MULTIPLYING AND DIVIDING FRACTIONS. FRACTION REVIEW

HOMEWORK – DUE TOMORROWI will have their homework posted here.

No Excuses