Fractions at the Fair Grade 5 Number Sense Objective 1: Describe and represent decimals concretely, pictorially and symbolically Objective 2: Relate decimals to fractions and fractions to decimals Objective 3: Demonstrate an understanding of fractions by using concrete, pictorial and symbolic representations to; create sets of equivalent fractions and compare fractions with like and unlike denominators. Grade 5- Number Sense Fractions at the Fair Grade 5 Strand: Number Sense Summary: Students demonstrate their knowledge of fractions by drawing a representation of the fractions, comparing fractions, and changing improper fractions to mixed numbers. Keywords: Working with fractions Writing equations Working with inequalities (< >) Grade 5 – Number Sense Fractions at the Fair Information for the Teacher Task Description This assessment allows the teacher to evaluate students’ ability to work with fractions. In Task 1, students demonstrate their understanding of fractions by drawing pictures of given fractions. Task 2 requires students to demonstrate their understanding of equivalent fractions. In Task 3, fractions with unlike denominators are compared. Required Materials Fraction kits are helpful if you permit the use of manipulatives during the assessment. Scoring key for the teacher Task 1: Students should represent 2/12 and 2/16 (or) 1/6 and 1/8 Task 2: Students should show that 1/2 equals 6/12 and 1/4 equals 4/16. Task 3: 7/10 < 4/5. Answers will vary on the third time he threw the ball. Grade 5 – Number Sense Fractions at the Fair Math is everywhere! Have you ever been to a fair? It is a lot of fun and there are so many different things to do. In these pages, you will see how to find math even at a fair. Grade 5 – Number Sense Task 1: How much to get in? Travis and Martin are two friends that are at the fair. Their moms gave them different amounts of money to spend. Travis has $12. Martin has $16. When they got to the fair, they found that it costs $2 to get in. In the boxes, draw pictures showing the part of $12 that Travis spent and the part of $16 that Martin spent to get in to the fair. Then write the parts as fractions. The fraction of the money Travis spent: _____________ The fraction of the money Martin spent: _____________ Grade 5 – Number Sense Teacher Scoring Guide – Task 1 4 Advanced The criteria for a score of Proficient are successfully met. More advanced work is included. For example, the student compares the two fractions. Other examples include: _________________________________________________ 3 2 Proficient The student draws the parts correctly. The pictures show an understanding of fractions. A correct fraction is written for both boys. Basic One correct fraction and one correct picture are included. OR Both fractions and both pictures are accurate, but significant coaching is needed. More work is needed. 1 Below Basic The response does not include any correct fractions or pictures. The task should be repeated. Grade 5 – Number Sense Student Scoring Guide – Task 1 I drew two pictures and wrote two fractions. My pictures and fractions are correct. I did not need help from the teacher. I think I did an extra great job because: I needed help drawing the pictures or writing the fractions. I will keep trying because I am almost there. I did not understand what to do. I will ask questions and try again. Grade 5 – Number Sense Task 2: Food! Of course the first thing they want to do at the fair is eat. Travis decides to spend $4 on food. This means that so far Travis has spent $6. In other words, he has already spent one half, or six twelfths of his money. Draw a picture showing that these two fractions are equal. 1/2 6/12 Martin only spent $2 on food. So far he has spent $4 of his $16. Write two equivalent fractions showing how much Martin has spent and draw pictures to show how the fractions are equal. ______ Grade 5 – Number Sense ______ Teacher Scoring Guide – Task 2 4 Advanced The criteria for a score of Proficient are successfully met. More advanced work is included. For example, the student compares the two sets of fractions. Other examples include: _________________________________________________ 3 2 Proficient Pictures are drawn to represent all the fractions. Equivalent fractions are written. All math is correct. No coaching is needed. Basic One fraction is written for Martin’s money, but the equivalent fraction could not be written. OR The pictures do not represent the equivalent fractions for Travis or Martin. Significant coaching is needed. More work is needed. 1 Below Basic It is unclear what the student completed. The task should be repeated. Grade 5 – Number Sense Student Scoring Guide – Task 2 I drew pictures to show how the fractions are equal. I wrote the correct fractions. I didn’t need any help from the teacher. I think I did an extra great job because: _________________________________________________ I needed help seeing how the fractions are equal. It was hard to draw without help. I will keep trying because I am almost there. I did not understand what to do. I will ask questions and try again. Grade 5 – Number Sense Task 3: Martin’s game Martin’s favorite game is throwing balls and knocking the bottles down. He is very good at the game. When he played the first time, he knocked 7/10 of the bottles down. When he played the second time, he knocked 4/5 of the bottles down. 1. Compare the first and second throws. Use greater than or less than. ______________________________________ 2. Now guess what fraction of the bottles he knocked down the third time. Write this number as a fraction. How did you get your guess? ______________________________________ 3. Compare the second and third throws. Use greater than or less than. ______________________________________ 4. Draw a picture comparing these three fractions on the back of your page. Grade 5 – Number Sense Teacher Scoring Guide – Task 3 4 Advanced The criteria for a score of Proficient are successfully met. More advanced work is included. For example, the pictures show equivalent fractions (ten bottles instead of five bottles). Other examples include: _________________________________________________ 3 2 1 Proficient Two correct comparisons are written using greater than or less than. The pictures accurately compare the fractions. No coaching is needed. Basic The student demonstrates an understanding of greater than and less than, but is unable to show it with a comparison or with a picture. Significant coaching is needed. More practice with the symbols is needed. Below Basic The student shows no understanding of the concept of greater than and less than when discussing the fractions. The task should be repeated. Grade 5 – Number Sense Student Scoring Guide – Task 3 I wrote comparisons without any help from my teacher. I compared the fractions. I did not need help from the teacher. I think I did an extra great job because: I needed help drawing or writing comparisons. I will keep trying because I am almost there. I did not understand what to do. I will ask questions and try again. Grade 5 – Number Sense Grade 5 – Number Sense