Fraction 7 Exercise
Learning objective:
1、
Know the meanings of denominator and numerator.
2、
Compare and order fractions.
3、
Use fractions to solve some problems.
Difficult point:
1、
Tell different meanings between denominator and numerator.
2、
Compare fractions quickly with different methods.
3、
Fractions calculations.
Teaching progress:
Part 1: Review
*How to use a fraction to express the relationship between denominator
and numerator correctly
Part 2: Solve the problem.
*Tell apart the meanings of denominator and numerator.
Part 3: Compare fractions.
*First, observe 2 questions above, find a conclusion that what kind of
fractions could be compared.
*Second, compare fractions without looking for the LCM of the
denominators.
*Third, order fractions in a correct way.
Exercise:
Compare fractions
Order fractions with “＜”.
Part 4: Using the knowledge of fractions to do some challenge.
Exercise: use one fraction to express shaded part of the whole.
*This exercise should use:
①
How to use fractions to express the relationship between
denominator and numerator.
② Doing addition to figure out the answer.
③ Use quick methods to calculate the addition.