8th Grade Hands On Math

1. 8th Grade Hands On Math “If students don’t learn the way we teach, we need to teach the way they learn.”

2. Warm UpHugs and Kisses • Closely examine the jar filled with Mini Cany Bars. • Estimate the total number of candy bars in the jar and record your estimate on a note card. • Now estimate the ratio of Krackel bars to total number of candy bars. Record your ratio on the note card. Don’t share your answers. The winner might win a Prize.

3. Hugs and Kisses Using the actual data above, what is the ratio of red wrapped kisses to total kisses? How close was your estimate? The winner is ………………………………

4. Agenda • 8:00 – 8:30 Sign in, snacks, warm up • 8:30 – 8:45 Housekeeping • 8:45 – 9:00 Group Discussion: How students learn…. • 9:00 – 9:30 Math Literacy • 9:30 – 9:45 Break • 9:45 – 11:45 Math Activities • 11:45 – 1:00 Lunch • 1:00 – 1:45 Calculator Use • 1:45 – 2:15 United Streaming/Curr. Pathways • 2:15 – 2:30 Break • 2:30 – 4:00 Computer Lab Exploration

5. Ground Rules

6. How do students today learn best?

7. “We learn ... • 10% of what we read • 20% of what we hear • 30% of what we see • 50% of what we see and hear • 70% of what we discuss • 80% of what we experience • 95% of what we teach others” - William Glasser

8. How important is Math Literacy? • Vocabulary – How do you ensure your students understand the “new language”? Word Walls, Vocabulary quizzes, nightly vocabulary homework, Pneumonic devices, Graphic organizers, etc. • Memorization vs. Application

9. VSG Model • Verbal: Written Solutions in terms of the context of the problem. • Symbolic: Notation and Units • Graphic: Visual Representation - Sugerik, Marty

10. ACTIVITIES

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12. Peas (Counting on Frank) 12 • What math? • Measurement • Customary vs metric • Dimension • Estimation • The power of claims – often false or invalid – convince me as reasoning and communication • Collaboration -Steve Leinwand

13. Math in the Real World Overheard in the ER as the sirens blare: “Oh my, look at this next one. He’s completely burned from head to toe.” “Not a problem, just order up 1000 square inches of skin from the graft bank.” You have two possible responses: Oh good – that will be enough. OR Oh crap – we’re in trouble. 13

14. Math from the Book Good morning class. Today’s objective: Find the surface area of right circular cylinders. Open to page 384-5. Example 1: 3 S.A.= 2πrh + 2 πr2 4 Find the surface area. Page 385 1-19 odd 14

15. One Grain Of Rice - Demi • Rani makes a deal with the raja in order to save her people from starving to death. She asks for just one grain of rice, doubled every day for thirty days. • Great Deal – She’s a hero or • Stupid Deal – Everyone dies

16. The Million $ Mission Bill Gates walks through the door and offers you a job. All you know about the job is that it is dangerous but profitable. You have two payment options: 1. One cent on the first day, two cents on the second day, and double your salary every day thereafter for thirty days OR 2. Exactly $1,000,000.00

17. Spaghetti & Meatballs for Everyone • Tables At A Birthday Party Relationship between area and perimeter • Tanya Teen started her own summer business-putting on birthday parties for small children. Her neighbors agreed to loan her square card tables to seat the children for refreshments. However, when some of the neighbors were away on vacation, Tanya couldn’t use their tables, and she really hated hauling the tables back and forth. Therefore, using as few tables as possible was important to her. Because all the children wanted to sit together, she had to place the card tables together into rectangles. Only one child could sit on each side of a card table. Her first birthday party had 18 children. How many tables did Tanya need to borrow?

18. Tables at A Birthday Party • Allow students to work in pairs. • Give them materials such as square tiles and grid paper to help them visualize the problem. • Look at the relationship of the area of the tables to the perimeter. • If all the children didn’t have to sit together, what would be the least number of tables she could use?

19. FIELD TRIP!!!!! • Students love field trips. Why not take them on an adventure in your own back yard? • The Mission: to find out the height of the flag pole without using a ladder • Materials: meter stick, mirror, pencil, paper, calculator • Students must present to the class: The height of the flag pole Process Calculations

20. Indirect Measurement Lessons • Measuring Up: In your Shadow – students use shadows to determine heights • How Tall? – Use of proportions to find height • Mirror, Mirror, on the Floor – Similar figures and mirrors.

21. Pythagorean Theorem • Use color tiles to prove the Pythagorean Theorem. (Lesson 13) • Real World Pythagoras • On line Pythagorean Programs www.usna.edu/MathDept/mdm/pyth.html www.pbs.org/wgbh/nova/proof/puzzle/theorem.html

22. Volume • Power Solids Materials: Cylinder, Cone, Rice What is the relationship of the volume of the cone to the cylinder? If you the formula to find the volume of a cylinder is V = B x h, what is the formula to find the volume of a cone?

23. Jeopardy • Students love games and competition. • Create your own Jeopardy game from using the template on the math wiki. • Mark E. Damon + Who Wants to Be a Millionaire. • Jeopardy, Who Wants to Be a Millionaire, Wheel of Fortune, Password, etc.

24. United Streaming www.unitedstreaming.com

25. Curriculum Pathways www.sasinschools.com