Adding Fractions
Decompose 4/5 into a sum of unit fractions.
1/5 + 1/5 + 1/5 + 1/5
2/3 - 1/3
1/3
<Display Line plot 1>
Maria's Ribbons
20 ribbons
Draw an acute angle
Draw a shape with a line of symmetry
Answers will vary - a line will split the shape in half to make it even on both sides.
3/12 + 2/12 + 2/12 =
7/12
6/8 - 2/8
4/8
Plot on a Number line the following fractions
2 1/2 , 4, 3 1/2, 2, & 2 1/2
Display answer line plot
Draw a right angle
EXACTLY 90 degrees
Marked with a square to identify the right angle
T/F
3/4 + 1/2 = 4/6
FALSE
You can NOT add with unlike denominators.
1/2 = 2/4 so you can rewrite the problem at 3/4 + 2/4 = 5/4.
4/5 + 3/5
7/5 or 1 2/5
2 3/5 - 1 1/5
1 2/5
<Display Line Plot>
Mikhail's Desk
2 1/2 inches
Draw an obtuse angle
More then 90 degrees
If a triangle is 1/2. Draw what 1 whole would be.
They ate the whole box! 6/6 or 1 whole
During field day, Nailea drank 6/10 of a liter of water and Jess drank 9/10 of a liter. How much more water did Jess drink than Nailea?
3/10
<Display Line Plot>
Puppy Weights
7 1/4
Starting at the 12:00 hour, rotate the hand 1/2 turn clockwise.
Half circle
)
Fraction circles/tiles
number line
hundreds chart
whiteboard
Clock
Foam counters
Place value blocks
Mrs. Seward used 1 3/8 cups of sugar to make cookies. Mrs. Lujano used 2 3/8 cups. How much sugar did they use together?
3 6/8 cups of sugar
Mia lives 4 1/4 blocks from school. Armando lives 2 3/4 blocks from school. How much farther does Mia live than Armando?
1 2/4
Use the data to create a line plot for the time spent reading each night to the nearest quarter hour.
1/4, 1/2, 1 1/2, 2, 1 1/2, 3/4, 1/4, 1, 1/4
Display the correct line plot
Starting at the 12:00 hand and rotating clockwise 1/4 turn, what hour would you be at?
3:00
3 students EACH want to buy a camera and ring light. Together they have $55. If each camera cost $14 and the ring light cost $3 each, how much money will be left over after they buy all the items
$14 x 3 camera = $42
$3 x 3 ring lights = $9
$42 + $9 = $51 spent
$55 - $51 = $4 left