2. Guidelines for Whole Class Math Talk 1)Wait time: Wait to think about what is being said after someone speaks (try five seconds) 2)Explain: “this is my solution/strategy” “I think _ is saying that…” Explain your thinking and show your thinking. Rephrase what another student has said.

3. Guidelines for Whole Class Math Talk 3) Agree with reason: “I agree because” Agree with another student and describe your reason for agreeing. Agree with another student and provide and alternate explanation. 4)Disagree with reason: “I disagree because” Disagree with another student and explain or show how your thinking/solution differs.

4. Guidelines for Whole Class Math Talk 5)Build on: “I would like to build on that idea…” Build on the thinking of another student through explanation, example, or demonstration. 6) Go beyond: “This makes me think about…” “Another way to think about this is…” Extend the ideas of other students by generalizing or linking the idea to another concept.

5. FIND THE MASS OF EACH OBJECT This problem deals with 1 bag of oranges (represented by O), 4 pineapples (P), and 1 watermelon(W). Use the clues in the table to find the mass of each object. For example, using the first row we know that the combined mass of the oranges, pineapples, and watermelon is17 kg. Use the other rows and columns to get more clues. Write an algebraic sentence to represent each relationship (e.g., O 1 P 1 W 5 17). Explain how you solved the problem.

6. How much does each fruit weigh? 17 kg 14 kg 21 kg 13 kg 19 kg22 kg24 kg

7. Instructions Chris had some loafs of bread, cans of soup, and some boxes of cereal. He put 1 can of soup into the bag, and then added more items. When he was done, the total mass was between 900 grams and 1 kilogram. What could be in the bag? Find as many different answers as you can!

8. “Put Em in the Bag!” 105 g 425 g 570 g

9. Extension! Using the same scenario stated previously, try to answer these questions What if 1 can of soup is not required? How could we double the number of combinations? Add in cookies at 275g? Change the weight range to 1200g – 1400g, how many combinations work now?

10. Think – Pair - Share Fighting in Hockey http://www.youtube.com/watch?v=B4VXV- qq5-E&NR=1&feature=endscreenHas it gone too far http://www.youtube.com/watch?v=B4VXV- qq5-E&NR=1&feature=endscreen Pittsburgh vs Philadelphia April 15th 2012

11. Back to Back Draw three (3) circles Draw a square Draw a rectangle What do you have?

12. Back to Back Draw three circles vertically one on top of the next with the bottom circle having a diameter of 8 cm the middle circle having a diameter of 4 cm and the top circle having a diameter of 2 cm On top of the 2 cm circle draw two horizontal parallel lines approximately 4 cm in length. Join the the lines with two perpendicular lines at the ends On top of the top parallel line draw a quadrilateral with four congruent sides 2 cm each with four 90 degree angles.

13. Back to Back Now What? You and your elbow partner are going to be given three pictures each. Don't show your partner your pictures. Each person will draw the pictures as they are described to them. Use your best “math talk”