SMART Board Interactive Whiteboard

Transcription

1 SMART Board Interactive Whiteboard Lesson FRACTIONS Grade 3 Lesson Created by: Julia Zangl Colby, Instructional Technology Specialist Marstons Mills East Horace Mann Charter Public School April 2007 Title: Apr 4 9:48 AM (1 of 24)

2 Grade 3 Chapter 9: Fractions Students will focus on understanding, writing, and comparing fractions and mixed numbers. 3rdGrade Standards: 3N3 Identify and represent fractions (between 0 and 1 with denominators through 10) as parts of unit wholes and parts of groups. Model and represent a mixed number (with denominator 2, 3, or 4) as a whole number and a fraction, e.g., 2/3, 1 3 ½. 3N4 Locate on the number line and compare fractions (between 0 and 1 with denominators 2,3, or4, e.g., 2/3). 3N8 Select and use appropriate operations (addition, subtraction, multiplication, and division to solve problems, including money). 3N13 Use concrete objects and visual models to add and subtract (only when the answer is greater than or equal to zero) common fractions (halves, thirds, fourths, sixths, and eighths) with like denominators. Chapter 9 Learning Objectives: 9 1: Identify regions that have been divided into equal sized parts, and divide regions into equal sized parts. 9 2: Identify and draw fractional parts of regions. 9 3: Find equivalent fractions using models such as fraction strips. 9 4: Compare and order fractions. 9 5: Estimate fractional parts of regions. 9 6: Identify and locate fractions on a number line. 9 7: Identify fractional parts of sets or groups and divide sets to show fractional parts. 9 8: Find the number of objects in a fractional part of a set where the numerator is : Add and subtract fractions with like denominators. 9 10: Read and write mixed numbers, and use objects or pictures to show mixed numbers. Title: Apr 9 12:06 PM (2 of 24)

3 It is a symbol, such as 2/3, 8/5, 5/1, 1/4, used to name equal parts of a whole, part of a set, a location on a number line, or a division of whole numbers into parts. What is it? Move the red rectangle to see the answer behind it. FRACTION Title: Circle whole (3 of 24)

4 Total Equal Parts: (denominator) Write the Fraction: Title: Circle halves (4 of 24)

5 Total Equal Parts: (denominator) Write the Fraction: Title: Circle thirds (5 of 24)

6 Is this the same as the previous slide? What is missing? Write the Fraction: Title: Circle whole (6 of 24)

7 Total Equal Parts: (denominator) Write the Fraction: Title: Circle quarters (7 of 24)

8 Total Equal Parts: (denominator) Write the Fraction: Title: Circle fifths (8 of 24)

9 Total Equal Parts: (denominator) Write the Fraction: Title: Circle sixths (9 of 24)

10 Total Equal Parts: (denominator) Write the Fraction: Title: Circle sevenths (10 of 24)

11 Total Equal Parts: (denominator) Write the Fraction: Title: Circle eighths (11 of 24)

12 Title: Square whole (12 of 24) Write the Fraction:

13 Title: Square whole (13 of 24) Write the Fraction:

14 Title: Square whole (14 of 24) Write the Fraction:

15 Drag the fraction to the object that represents the shaded parts of the object. Watch out for the trick! Title: Apr 9 12:11 PM (15 of 24)

16 Use each dot to mark a spot on the numberline where the fractional amount is located Title: fraction numberline (16 of 24)

17 Drag the appropriate sign in between the two fractions Use each dot to mark a spot on the numberline where the fractional amount is located Title: Apr 4 12:09 PM (17 of 24)

18 1. Drag the appropriate sign in between the two fractions What type of fraction are these two fractions? 3. Move the red rectangle to see if you are right. Equivalent Fractions Title: Apr 4 12:09 PM (18 of 24)

19 What is a number that has a whole number and a fraction? Give some examples. To check your answer, move the red rectangle. Mixed Number Title: Apr 4 12:09 PM (19 of 24)

20 fraction decimal percent Find the fraction, decimal and percent that all equal each other. Fill the table % % 66% 33% 25% Title: Fill the table (20 of 24)

21 Fraction Web Sites to Visit for some fun fraction activities: NCTM (National Council of Teachers of Mathematics) Illuminations Site Fraction Model 1 (Numerator values 0 to 20; Denominator values 1, 2, 4, 5, 8, 10, and 20): < ID=11> Fraction Model 2 (Number and Denominator values up to 20): < Fraction Model 3 (Numerator and Denominator values up to 100): < Fraction Game (allows students to individually practice working with relationships among fractions and ways of combining fractions): < NLVM (National Library of Virtual Manipulatives) Fraction Bars: < Fraction Naming (name the fraction shown by the shape): < Parts of a Whole (relates parts of a whole unit to written description and fraction): < Visualizing Fractions (illustrate a fraction, divide a shape, highlight appropriate parts): < 1.html> Percentages, Decimals, and Fractions (discover relationships): < Pie Chart (create an easy pie chart): < Other Math Sites Fraction Bars (show as fractions, decimals, and percents) at Arcytech: < Fresh Baked Fractions at Funbrain (has levels): < Soccer ShootOut at Funbrain (has levels): < Bowling for Fractions at Harcourt School Publishers (color the parts and fill in the fraction): < Ordering Fraction Game at BBC: < Title: Apr 9 12:43 PM (21 of 24)

22 Title: Apr 4 9:51 AM (22 of 24)

23 This is very cool. To make a fraction, use the marker to write the numerator and denominator in the Fraction Maker below. When your numbers are turned into "typed" numbers, click the arrow to place the fraction on the slide. Fractio.swf Title: Apr 9 1:40 PM (23 of 24)

24 SMART Board Interactive Whiteboard THE END Title: Apr 4 9:48 AM (24 of 24)