Author Archive

Does the number of strings attached to the parachute affect how fast it falls?

Written by yvetteo. Posted in Open Question, Parachutes

Team :  1

What we did:

  • We created a larger parachute,  attached 4 strings, dropped the parachute from the height of the room’s ceiling and measured the time to fall to the floor.
  • We repeated the process with 6 strings, then 8, then 10

What we observed:

  • With each additional set of strings attached, the drop time increased (good) but there was a point where adding mor string had a negative affect on the drop time (parachute fell faster).

Other questions we now have:

  • Why did the rate of falling begin to increase again after a certain number of strings were attached to the parahcute?
  • What kind of mathematical curve is being demonstrated by the data collected?
  • Does this effect happen more or less quickly depending on the kind of material we use for the parachute construction?

What we learned :

Does the shape of the canopy affect the drop rate of the parachute?

Written by yvetteo. Posted in Parachutes

Team:  3

Investigation Plan:

  • Using the same material, the same string lengths, and the same attached weight, we created different shaped parachutes:  triangle, circle, square and rectangle.
  • We timed the drop rate of each parachute to determine which shapes performed best.

What we observed:

  • The rectangle provided the best performance and the triangle provided the worst.

This happened because:

  • Parachutes that result in a dome shape when falling increase the effective area on which air  acts against the material as it falls.  This upward force is called drag.  It counteracts the force of gravity pulling the attached weight towards the ground.

Commenting Tips

Written by yvetteo. Posted in Blogging Tips

The purpose of commenting is to connect.

We comment a lot: on YouTube videos, on blogs, and face-to-face.    Pretty much, we comment all the time.  Sometimes, we comment to learn from people on the other side of the world. We comment to express our opinions about what has been written. We comment to connect, and to connect we tell stories, use humour, and share our thinking.

Remember, you are trying to engage the blogger in a conversation!   A good comment can be the beginning of a good blogging relationship.

Here is some advice on quality commenting. You can also get GREAT blogging advice from ES Students by watching this video:

Think about your digital privacy:

  • Use only your first name to identify yourself.
  • Leave off your home email, your street address, phone number, or school name.
  • Don’t share specifics of your daily routines that involve time and location (ie where & when your soccer practice is)

Think about the tone:

  • Be polite, friendly, and encouraging.
  • Have some humor, but be careful with sarcasm.
  • If you disagree, don’t be rude about it; give constructive (helpful) feedback.
  • Think about the content of your comment:
  • Keep your comment on topic and make sense. Say something about the original post.
  • Don’t say random stuff or get really silly.
  • Be more formal than you would in real life, but not stuffy.
  • Avoid texting shortcuts like “u” for “you” and “l8r” for “later”, and only use one emoticon if you need to.
  • Sometimes add a question at the end to keep the conversation going.
  • Include your blog url (address) so the blogger knows where to find you.

Think about conventions:

  • Try to fix your spelling mistakes: draft your comments.
  • Use capitals in the right places.  Remember, all capitals is like yelling.
  • Punctuate properly: period at the end of a sentence, space after a period, comma, or end bracket. One “!” will do.
  • Remember, you are putting your best self forward, so polish your comments.

School Blogging Policy

Written by yvetteo. Posted in Blogging Tips

This is a set of general guidelines for the use of weblogs (“blogs”) . Blogs are considered an extension of the classroom and therefore are subject to these guidelines as well as the rules and regulations of the Benjamin Franklin International School.

These guidelines are not meant to be exhaustive and do not cover every contingency. If you are ever in doubt about the appropriateness of an item – ask a parent or teacher.

Safe and Responsible Blogging

Here are some specific items to consider:

  1. The use of blogs is considered an extension of your classroom. Therefore, any speech that is considered inappropriate in the classroom is inappropriate on a blog. This includes, but is not limited to, profanity; racist, sexist or discriminatory remarks; personal attacks.
  2. Blogs are used as learning tools, either as extensions of conversations and thinking outside of regular class time, or as the basis for beginning new educational discussions.  Either way, be sure to follow all rules and suggestions that are offered by your teachers regarding appropriate types of postings in your class.
  3. Blogs are about ideas – therefore, agree or disagree with the idea, not the person.   Freedom of speech does not give you the right to be uncivil. Use constructive criticism and use evidence to support your position. Read others’ posts carefully – often in the heat of the moment you may think that a person is saying one thing, when really they are not.
  4. Try not to generalize.   Sentences that start with words like “All” (e.g., “All teachers,” “All administrators,” “All liberals,” “All conservatives”) are typically going to be too general.
  5. Blogs are public. Anyone and everyone on the Internet can read whatever you post on a blog.  Even if you delete a post or comment, it has often already been archived elsewhere on the web. Do not post anything that you wouldn’t want your parents, your best friend, your worst enemy, or a future employer to read.
  6. Blog safely.   NEVER post personal information on the web (including, but not limited to, last names, personal details including address or phone numbers, or photographs).  Do not, under any circumstances, agree to meet someone you have met over the Internet.
  7. Your login to the blogging site might be linked to your school profile.  Therefore, anywhere that you use that login (posting to a separate personal blog, commenting on someone else’s blog, etc.), you need to treat the same as a school blog and follow these same guidelines.   You should also monitor any comments you receive on your personal blog and – if they are inappropriate – delete them. If you would like to post or comment somewhere and not follow these guidelines, you need to create a separate login to the blogging site so that it does not connect back to your class blog.  We would still recommend you follow the portion of these guidelines that address your personal safety (e.g., not posting personal information, etc.)
  8. Linking to web sites from your blog or blog comments in support of your argument is an excellent idea. But never link to something without reading the entire article to make sure it is appropriate for a school setting.
  9. Use of quotations in a blog is acceptable. Make sure that you follow the proper formatting and cite the source of the quote.
  10. Pictures may be inserted into a blog. Make sure that the image is appropriate for use in a school document and that all copyright laws are followed.

Training Session I: Communications Skills

Written by yvetteo. Posted in BFIS@CosmoCaixa

  Session Overview:

What is a museum Explainer? How does a High School Explainer differ from a museum educator? What is expected from you and what is the pilot infrastructure?

The primary objective of this session is to answer all open questions and to establish a common and shared understanding of the Explainer role as well as the pilot infrastructure.


In this first training session the following topics will be covered

  • Explainer Program History and Pilot Positioning
  • Personal presentation skills and public speaking techniques
  • BFIS Blogosphere environment and posting guidelines/format


ES Library, 4:05 – 5:35  p.m.(1.5 hrs)