PLTW 7th Grade ~ (Period 5) Assignments
- Instructor
- Ms. Lisa L Garcia Cordes
- Term
- 2015-2016 School Year
- Department
- Elective
- Description
-
undefinedThank you for visiting our PLTW Webpage. I'm sure you are here searching for our school supply list like I asked you (your child to). Good Job on being diligent!!! :-DHOWEVER… In speaking to Mrs. Barajas, who taught PLTW last year and is teaching it to the 8th graders this year, I discovered that we received a huge shipment of PLTW supplies provided to us by the district for our students to use. (And I do mean huge!!!) Soooo… aside from the normal school supplies that our kids need in their other courses (pens, pencils, etc), they will not be needing to purchase and additional supplies at this time. As projects arise, there may be an item or two that might be needed however. Items such as cotton balls, straws, etc will be requested as a homework assignment and given to the students the week before we are ready to do that particular project. Soooo… once again, thank you for staying on top of things, thank you for ensuring that the message was relayed and for wanting to do well and have your supplies ready, and thank you to our district for saving us all a bunch of money and time!I look forward to meeting you at Back-to-School Night on September 3rd!Enjoy the rest of your weekend! And I'll see you soon.Ms. Cordes
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Home Lab: Paper Skimmer …
Introduction
Throughout history many systems of measurement have been devised and then thrown out as more precise and more logical systems have come along. While most of the world has adopted the metric system, the United States still clings to the Standard system, also called the customary system.
In this measurement lab, you will have a chance to perfect your precision measuring skills. STEM professionals, such as scientists, technologists, mathematicians, and engineers, must be able to measure accurately. It is very important that you pay attention to the units that you are using.
Equipment
- PLTW Gateway notebook
- Pencil
- Metric or English ruler
- 60# Cardstock,Tagboard, file folder, or cereal box
- Glue
- Tape
Procedure
In this activity you will create a skimmer that will slide across the floor with ease if your measurements are accurate and your workmanship is exceptional.
- Neatly and accurately use the plan sheet and measuring tool to draw your skimmer main body, air scoop, and two (2) fins onto the material that you will use to make your skimmer.
- Carefully cut out your skimmer parts. Cut only on the solid lines. The dotted lines are where you will score and fold.
- Use your ruler to draw the dotted lines on your cardboard air scoop and main body, and then fold on these lines to create a 90° angle.
- Glue the fins to the ½ in. flap on the main body. Make sure that the angled edge faces the front of your skimmer. Glue or tape the main body back to the fins at an angle as shown in the orthographic drawing.
- Glue the flaps of the air scoop to the inside edges of the main body with the narrow end flush with the front of the main body as shown in the orthographic drawing.
- After all glue has dried, throw your skimmer along the floor and see how smoothly it glides.