
Math in focus  Day 3: March 19, 2020
All Math in Focus students may follow the plans below.
Check with your math teacher regarding how she would like you to share your work.
**Prealgebra students should visit Mrs. Bucher's website**Overview: Adding and Subtracting Fractions
Estimated Time: Approximately 45 minutes
Explanation: Today you will review adding and subtracting fractions. Then, you will apply your knowledge to both create and answer a few problems.
Things to know:

Fractions have a numerator (top number) and a denominator (bottom number).

You will be adding and subtraction fractions with like denominators.

You will be adding and subtracting fractions with unlike denominators.
 First, find a common denominator:
 Method #1: Quick Common Denominator  You can find a quick common denominator by multiplying the two denominators together
 Method #2: Least Common Multiple  You can find a common denominator, by finding the least common multiple of the two denominators.
 Remember, after finding common denominators, you must also change the numerator so that you have an equivalent fraction.
 First, find a common denominator:
 You will be finding equivalent fractions.
 Multiply the numerator and denominator by the same number.
Tasks for Today:
**Files needed for today's activities will be found in your Math Team.
Reach out to your math teacher if you cannot access the documents. Continue recording the daily temperature on your chart.
 Fraction Flip:
 You will need your number cards for this activity.
 Take a pencil, pen, straw, etc. and place in in front of you to make a horizontal line.
 Flip over one number card and place it above the horizontal line.
 Flip over a second number card and place it below the horizontal line.
 Read the fraction you created, then find one equivalent fraction. Repeat Fraction Flip 10 times.
 Record your equivalent fractions in a notebook, or on a separate sheet of paper.
 Complete the Adding and Subtracting Fractions Worksheet.
 You may print the activity or rewrite the problems on a separate sheet of paper.
 Selfmade Questions:
 You will need your number cards for this activity.
 Take a pencil, pen, straw, etc. and place in in front of you to make a horizontal line.
 Place another pencil, pen, marker, straw, etc. and place in in front of you to make another horizontal line.
 Flip over one number card and place it above one of the horizontal lines.
 Flip over a second number card and place it below one of the horizontal lines.
 Continue until you have two fractions.
 Add or subtract the fractions. Repeat 6 times.
 Record your fraction work in a notebook, or on a separate sheet of paper.
Share today's work:
Remember, your work today is not graded, but I'd love to see what you've done. You can share your work with me through Teams, email (jsnyder@cbsd.org), Seesaw, or share your composition book with me when we return to school.
