NS/N: FRACTIONS, RATIOS AND RATEs
BIG IDEAS:
(taken from “Big Ideas by Dr. Small”):
- Fractions can represent parts of regions, parts of sets, parts of measures, division, or ratios. These meanings are equivalent.
- A fraction is not meaningful without knowing what the whole is.
- Renaming fractions is often the key to comparing them or computing with them. Every fraction can be renamed in an infinite number of ways.
- Ratio and rates, just like fractions and decimals, are comparisons of quantities.
- A ratio compares quantities with the same unit
- A rate compares quantities with different units
(taken from “Big Ideas by Dr. Small”):
- Fractions can represent parts of regions, parts of sets, parts of measures, division, or ratios. These meanings are equivalent.
- A fraction is not meaningful without knowing what the whole is.
- Renaming fractions is often the key to comparing them or computing with them. Every fraction can be renamed in an infinite number of ways.
- Ratio and rates, just like fractions and decimals, are comparisons of quantities.
- A ratio compares quantities with the same unit
- A rate compares quantities with different units
STUDENT LEARNING GOALS:
GOAL: I can represent fractions and their equivalents.
- QUIZ: Fractions Puzzles (representing fractions)
- QUIZ: Equivalent Fractions
- QUIZ: Improper Fractions and Mixed Numbers
- VIDEO: Introduction to Fractions
- VIDEO: Representing Fractions
- VIDEO: Numerators and Denominators
- VIDEO: Mixed Numbers to Improper Fractions
- VIDEO: Improper Fractions to Mixed Numbers
- VIDEO: Equivalent Fractions
- VIDEO: Fractions in Lowest Terms
- GAME: Representing Fractions
- GAME: Fractions Booster (representing)
- GAME: Thirteen Ways of Looking at a Half
- GAME: Melvin’s Match (representing)
- GAME: Fraction Flags (representing)
- GAME: Improper Fractions and Mixed Numbers
- GAME: Fresh Baked Fractions (equivalents)
- GAME: Fractions Monkeys (equivalents)
GOAL: I can relate fractions to decimals.
- QUIZ: Relating Fractions to Decimals
- QUIZ: Fraction Applications
- VIDEO: Converting Fractions to Decimals
- VIDEO: Converting Simple Decimal to Fraction
- GAME: Fruit Shoot
- GAME: Puppy Chase
GOAL: I can order fractions and mixed numbers with like denominators.
- QUIZ: Comparing Proper Fractions
- VIDEO: Comparing Fractions with Like Denominators
- GAME: Comparing Fractions
- GAME: Dirt Bike Comparing Fractions (more of a grade 6 concept)
- GAME: Ordering Fractions
GOAL: I can identify and solve problems using ratios and rates.
GOAL: I can represent fractions and their equivalents.
- QUIZ: Fractions Puzzles (representing fractions)
- QUIZ: Equivalent Fractions
- QUIZ: Improper Fractions and Mixed Numbers
- VIDEO: Introduction to Fractions
- VIDEO: Representing Fractions
- VIDEO: Numerators and Denominators
- VIDEO: Mixed Numbers to Improper Fractions
- VIDEO: Improper Fractions to Mixed Numbers
- VIDEO: Equivalent Fractions
- VIDEO: Fractions in Lowest Terms
- GAME: Representing Fractions
- GAME: Fractions Booster (representing)
- GAME: Thirteen Ways of Looking at a Half
- GAME: Melvin’s Match (representing)
- GAME: Fraction Flags (representing)
- GAME: Improper Fractions and Mixed Numbers
- GAME: Fresh Baked Fractions (equivalents)
- GAME: Fractions Monkeys (equivalents)
GOAL: I can relate fractions to decimals.
- QUIZ: Relating Fractions to Decimals
- QUIZ: Fraction Applications
- VIDEO: Converting Fractions to Decimals
- VIDEO: Converting Simple Decimal to Fraction
- GAME: Fruit Shoot
- GAME: Puppy Chase
GOAL: I can order fractions and mixed numbers with like denominators.
- QUIZ: Comparing Proper Fractions
- VIDEO: Comparing Fractions with Like Denominators
- GAME: Comparing Fractions
- GAME: Dirt Bike Comparing Fractions (more of a grade 6 concept)
- GAME: Ordering Fractions
GOAL: I can identify and solve problems using ratios and rates.
CURRICULUM EXPECTATIONS:
- describe multiplicative relationships between quantities by using simple fractions and decimals (e.g.,“If you have 4 plums and I have 6 plums, I can say that I have 1 1/2 or 1.5 times as many plums as you have.”);
- demonstrate an understanding of simple multiplicative relationships involving whole-number rates, through investigation using concrete materials and drawings (Sample problem: If 2 books cost $6, how would you calculate the cost of 8 books?).
- demonstrate and explain the concept of equivalent fractions, using concrete materials (e.g., use fraction strips to show that 3/4 is equal to 9/12)
- represent, compare, and order fractional amounts with like denominators, including proper and improper fractions and mixed numbers, using a variety of tools (e.g., fraction circles, Cuisenaire rods, number lines) and using standard fractional notation;
- determine and explain, through investigation using concrete materials, drawings, and calculators, the relationship between fractions (i.e., with denominators of 2, 4, 5, 10, 20, 25, 50, and 100) and their equivalent decimal forms (e.g., use a 10 x 10 grid to show that 2/5 = 40/100 , which can also be represented as 0.4);
- describe multiplicative relationships between quantities by using simple fractions and decimals (e.g.,“If you have 4 plums and I have 6 plums, I can say that I have 1 1/2 or 1.5 times as many plums as you have.”);
- demonstrate an understanding of simple multiplicative relationships involving whole-number rates, through investigation using concrete materials and drawings (Sample problem: If 2 books cost $6, how would you calculate the cost of 8 books?).
- demonstrate and explain the concept of equivalent fractions, using concrete materials (e.g., use fraction strips to show that 3/4 is equal to 9/12)
- represent, compare, and order fractional amounts with like denominators, including proper and improper fractions and mixed numbers, using a variety of tools (e.g., fraction circles, Cuisenaire rods, number lines) and using standard fractional notation;
- determine and explain, through investigation using concrete materials, drawings, and calculators, the relationship between fractions (i.e., with denominators of 2, 4, 5, 10, 20, 25, 50, and 100) and their equivalent decimal forms (e.g., use a 10 x 10 grid to show that 2/5 = 40/100 , which can also be represented as 0.4);
No comments:
Post a Comment