Page 220 - NUMINO TG_6A

14100% Unit

3 . Connect the matching fractions, decimals, percents, and ratios. Remind students what ratios are. Ratios are
another way of expressing that some number
a. 1 25% or amount is a part of a greater number or
amount. Ratios are like fractions and can be
4 rewritten as such to help them make more
sense.
10 : 40
0.45 3. Have students connect the bubbles on
their own. Instruct them to draw lines
b. 9 46% connecting equivalent bubbles bubbles that
0.25 have the same value. They can figure this out
20 by either figuring out the absolute value of
each individual bubble, or looking for bubbles
8 : 50 that they know are equivalent. If they have
different colored pens, have them make each
c. 4 0.46 45% chain a different color to clearly show the
0.16 46 :100 different paths. Have them check with a
25 neighbor before going over the correct
16% connections in class.
d. 9 : 20

23
50

14. 100% 123

Working backwards can often help with solving problems that seem especially difficult. When going from

fractions to decimals to percentages to ratios, you can sometimes have trouble going from percentages to ratios

especially when there is more than one way to express the percentage as a ratio. Take students backwards,

showing a ratio and turning it into things like a fraction or a percentage. Tricks that will help here include the

realization that ratios are just another way to write a fraction.

10:40 Fraction: 10 1
40 4

Decimal: 0.25

Rercentage: 25%

6A Unit 14 203