3rd Grade Fractions 2015-03-31 www.njctl.org Slide 3 / 215 Table - PDF document

Slide 1 / 215 Slide 2 / 215 3rd Grade Fractions 2015-03-31 www.njctl.org Slide 3 / 215 Table of Contents Click title to go · Equal Parts to that section · Fractions of a Group · Exploring Fractions with Pattern Blocks · Fractions on a Number Line · Comparing Fractions with Same D enominators or Numerators · Benchmarks · Equivalent Fractions · Whole Number Fractions · Measurement to Nearest H alf and Quarter Inch

Slide 4 / 215 Links to PARCC sample questions Performance Based Assessment Non-Calculator #4 Non-Calculator #5 Non-Calculator #7 Non-Calculator #17 End of Year Non-Calculator #3 Non-Calculator #8 Non-Calculator #13 Non-Calculator #17 Non-Calculator #23 Non-Calculator #28 Non-Calculator #30 Non-Calculator #35 Slide 5 / 215 Equal Parts Return to Table of Contents Slide 6 / 215 Key Terms Fraction - An expression that indicates the quotient ( ) of two quantities. ÷ Numerator - The number above the fraction bar. The numerator answers the question "How many parts?" Denominator - The number below the fraction bar. The denominator answers the question "How many total?" Numerator 3 Fraction = = Denominator 7

Slide 7 / 215 Where have you seen fractions? How do we use fractions? 96/100= A+ Slide 8 / 215 These are halves. How do you write one half? numerator denominator Slide 9 / 215 These are thirds. How do you write one third?

Slide 10 / 215 These are Fourths. How do you show and write two fourths? Slide 11 / 215 Sixths How do you show and write two sixths? Slide 12 / 215 Eighths How do you show and write eight eighths?

Slide 13 / 215 What fractions are represented below? Slide 14 / 215 Internet links for more practice Fractions Parts of a Whole Model Fractions Naming Model Slide 15 / 215 1 Does this show ? Yes No

Slide 16 / 215 2 What fraction of the whole is shaded? Slide 17 / 215 3 What fraction of the whole is white? Slide 18 / 215 4 What fraction could this picture show? A B C Both A and B D Neither A nor B

Slide 19 / 215 5 How many more yellow pieces do I need to make this fraction ? Slide 20 / 215 6 Which of the following could be used to show ? C A B D Slide 21 / 215 7 Bella cut her ribbon into 4 pieces that are the same length. The length of one piece of ribbon is what fraction of the length of the ribbon?

Slide 22 / 215 8 A whole is divided into 4 equal parts. Write the fraction that represents 3 parts of the whole. Slide 23 / 215 9 A whole is divided into 6 equal parts. Write the fraction that represents 1 part of the whole. Slide 24 / 215 10 A whole is divided into 7 equal parts. Write the fraction that represents 4 parts of the whole.

Slide 25 / 215 11 Lee needs of a cup of sugar to make cookies. He will measure the sugar using a cup scoop. How many times will Lee need to fill the cup scoop in order to measure of a cup of sugar? Slide 26 / 215 12 Sasha needs of a cup of mix to make pancakes She will measure the mix using a cup scoop. How many times will Sasha need to fill the cup scoop in order to measure of a cup of mix? Slide 27 / 215 13 Which three shapes have parts that are the area of their whole shape. A B C D E Drag and drop the correct three shapes into the box. From PARCC sample test

Slide 28 / 215 14 Select the two shapes that have parts that are each of the area of the whole shape. A D B E C From PARCC sample test Slide 29 / 215 15 A flower garden is divided into equal parts. The color of the flowers planted in each part of the garden is shown. Select the three statements that are true. A There are red or yellow flowers in of the garden. B Purple flowers are planted in of the garden. C Pinks flowers are planted in of the garden. D Each part of the garden is of the whole garden. E There are yellow flowers in of the garden. F Red flowers are planted in of the garden. From PARCC sample test Slide 30 / 215 16 Each model equals one whole divided into equal parts. Which models show shaded? Select the three correct answers. A D B E C F From PARCC sample test

Slide 31 / 215 17 An artist plans to paint a wall in a room. The wall is divided into 6 equal parts so that each part can be painted a different color. Part A The artist goes to the store to buy brushes and small cans of paint. He pays a total of $94. · He buys 8 brushes that cost $5 each. · The rest of the money is used for the 6 cans of paint. Each can of paint costs the same amount. How much does each can of paint cost? (Show your work on paper at your desk and be ready to explain) From PARCC sample test Slide 32 / 215 18 Part B The artist starts painting the wall. The parts of the wall that look white are not painted yet. Which statements about the wall are correct? Select the two correct statements. A Each painted part it of the whole wall. B Each painted part it of the whole wall. C Each painted part it of the whole wall. D The fraction of the wall not yet painted is . E The fraction of the wall not yet painted is . F The fraction of the wall not yet painted is . From PARCC sample test Slide 33 / 215 Fractions of a Group Return to Table of Contents

Slide 34 / 215 The last lesson focused on dividing a whole shape into fractions. This lesson focuses on fractions of group of objects. 1 of the group of apples 1 of the whole 2 2 1 1 2 2 Slide 35 / 215 What fraction of the shapes are circles? Step 1: Count the circles. This is your numerator. Step 2: Count all of the shapes. This is the denominator. Slide 36 / 215 What fraction of the nickels are heads up? What fraction of the nickels are on tails?

Slide 37 / 215 What fraction of the faces are happy? What fraction of the faces are sad? Slide 38 / 215 Circle of the mice. Circle of the lions. Circle of the frogs. Slide 39 / 215 Click the cookie to practice fractions of a group.

Slide 40 / 215 19 Are of the lions in the triangle? Yes No Slide 41 / 215 20 What fraction of the frogs are boxed below? A C B D Slide 42 / 215 21 What fraction is not circled?

Slide 43 / 215 22 of the dogs are wearing a bow. True False Slide 44 / 215 23 What fraction of the flowers are not in the vase? Slide 45 / 215 Exploring Fractions with Pattern Blocks Return to Table of Contents

Slide 46 / 215 Groups of students need: Slide 47 / 215 How many are in one ? Slide 48 / 215 The is what fraction of the ?

Slide 49 / 215 24 How many green triangles are in one red trapezoid? Slide 50 / 215 25 The green triangle is what fraction of the red trapezoid? Slide 51 / 215 26 How many green triangles are in one yellow hexagon?

Slide 52 / 215 27 The green triangle is what fraction of the yellow hexagon? Slide 53 / 215 28 How many blue rhombuses are in one yellow hexagon? Slide 54 / 215 29 The blue rhombus is what fraction of the yellow hexagon?

Slide 55 / 215 30 How many red trapezoids are in one yellow hexagon? Slide 56 / 215 31 The red trapezoid is what fraction of the yellow hexagon? Slide 57 / 215 Small group/ individual practice with online pattern blocks. Click for web site.

Slide 58 / 215 Pattern block activity Groups need a container of pattern blocks and will use pattern blocks to represent fractions of a group. Slide 59 / 215 Drag blocks needed down into work space. WORK SPACE In this group of 8 pattern blocks, 3 of them are triangles. of the group is triangles Slide 60 / 215 Drag blocks needed down into work space. WORK SPACE Make a group of 5 pattern blocks, with 2 of them squares. Fraction =

Slide 61 / 215 Drag blocks needed down into work space. WORK SPACE Make a group of 7 pattern blocks, with 6 of them trapezoids. Fraction = Slide 62 / 215 Drag blocks needed down into work space. WORK SPACE Make a group of 3 pattern blocks, with 2 of them hexagons. Fraction = Slide 63 / 215 32 What fraction of this group of pattern blocks is squares?

Slide 64 / 215 33 What fraction of this group of pattern blocks is triangles? Slide 65 / 215 34 What fraction of this group of pattern blocks is hexagons? Slide 66 / 215 35 What fraction of this group of pattern blocks is trapezoids?

Slide 67 / 215 36 What fraction of this group of pattern blocks is triangles? Slide 68 / 215 Fractions on a Number Line Return to Table of Contents Slide 69 / 215 There are numbers between 0 and 1. 0 1 What is a number that is greater than 0 but less than 1?

Slide 70 / 215 How did you know what the number was? 0 1 The number line was divided into 2 equal sections. Slide 71 / 215 What denominator would you use if the number line was divided into 3 equal parts? 0 1 Slide 72 / 215 What denominator would you use if the number line was divided into 4 equal parts? 0 1

Slide 73 / 215 37 Should you use a 6 in the denominator for this number line? Yes No 0 1 Slide 74 / 215 38 What denominator would you use to represent the lines on this number line? 0 1 Slide 75 / 215 39 What denominator would you use to represent the lines on this number line? 0 1