1. 21 st Century Lessons Using Tape Diagrams and Ratio Tables to Solve Ratio Problems Primary Lesson Designer: Lisa Schad 1

2. Warm Up OBJECTIVE: SWBAT solve ratio problems by using tape diagrams and ratio tables. Language Objective: SWBAT describe how to solve a ratio problem to other students in a small group. Agenda 2 Describe something on the American flag that has each given ratio. 1. 6 to 7 2. 7 to 13 3. 6 to 134. 3 to 25 White stripes to red stripes White stripes to red stripes Red stripes to all stripes Red stripes to all stripes White stripes to all stripes White stripes to all stripes White stripes to stars White stripes to stars

3. Agenda: 1) Warm Up - independent 2) Launch – Think, Pair, Share – partners 3) Explore: 4) Summary - independent 5) Exit Ticket - independent 3 OBJECTIVE: SWBAT solve ratio problems by using tape diagrams and ratio tables. Language Objective: SWBAT describe how to solve a ratio problem to other students in a small group. Problem Set Practice - independent Expert Groups – small group Jigsaw Share – small groups

4. Launch – Think, Pair, Share Agenda 4 You have learned about two great tools for solving ratio problems. Can you name the tools? T A P E D I A G R A M S Today you are going to practice using both tools. R A T I O T A B L E S Lefty – Tell Righty what a tape diagram is. Righty – Tell Lefty what a ratio table is.

5. Explore – Independent Practice Agenda 5 You will now practice solving some ratio problems. Your teacher will assign you 1 problem set to focus on. If you finish quickly do any of the other problem sets. You will need to do all the problem sets before the end of class. You have 15 minutes.

6. Explore – Expert Groups Agenda 6  You will be split into 6 small groups. Everyone in your group just did the same problem set you did.  You will become an expert on that problem!  Each member of the expert group will create an expert description of how to solve the problem.  Use either a tape diagram, a ratio table, or a shortcut for those tools to solve the problem. Show your work!  Make sure you can describe how to solve the problem to another person. You may want to practice!

7. Explore – Expert Groups Agenda 7 Work together with your expert group to solve the problem using a tool. Show your work. Write a description of what to do. You will have only 10 minutes.

8. Explore – Problem Review: Jigsaw Agenda 8  We are going to do a “Jigsaw” sharing of the problems.  I will mix up the groups. Each new group will include at least one expert on each of the problem sets.  Sometimes there will be more than one expert for a problem in the same group.

9. Explore – Problem Review: Jigsaw Agenda 9  You are responsible for having a complete and correct worksheet at the end, so listen carefully!  In your new groups, read each problem together and brainstorm how to solve it. Take a minute or so to think for each problem.  Experts, now it’s your turn to tell the group how you solved the problem. Everyone needs to write a solution on their own papers. Umm, excuse me, I’m an expert on the problem. Shouldn’t I just tell the group what to do? Experts, please wait until your group has brainstormed first before you tell them what you know! Oh, ok. Give them a chance to think about it first. Sure!

10. Explore – Jigsaw Share Agenda 10 Jigsaw Share You may begin sharing. Each person will have 3 minutes. Optional: Video Review of Problem A https://vimeo.com/47678975

11. Explore – Review and Complete Agenda 11 Practice Problems Wrap it up! Make sure you have solutions for every problem. All work should be complete. Turn in your work!

12. Summary Agenda 12 Write your responses in your notebook. What is one thing you liked about the lesson today? What is one thing that was difficult today? Is there anything that is still confusing about solving ratio problems (so far)?

13. Exit Ticket Agenda 13 Use any tool you wish to solve this problem. Show all your work. Write your responses in your notebook. The ratio of Grade 6 students to Grade 7 students on a field trip is 7:5. In all, 84 students went on the trip. How many 6 th grade students went on the field trip?