679357
20
Zoom out
Zoom in
Previous page
1/62
Next page
19
Lesson 2: The Seesaw
•Askthechildreniftheythinkitwillbehardertoliftthe
load when it is placed a long distance from the fulcrum.
Explain that they can reverse the load and effort ends
of their seesaw lever model. Reposition the labelling
stickers to the new arrangement and repeat the
activities as before.
•Askthechildrentodescribeandexplaintheir
observations. They should include labelled drawings
of their model with arrows to indicate movements and
use the correct terminology to describe the different
components.
Extension Activity 1
Ask the children to use a force meter to measure the effort
force needed to lift the load in the three different situations
outlined above. If two force meters are available per group,
one force meter could be used to apply the load and the
other force meter could be used to measure the effort.
Record the results on the board and discuss the results.
Plenary
Have a quiz on levers in which the children must use
the correct technical vocabulary.
Ask the children to identify ‘levers in action’ from a
collection of common devices used in school and at
home. The names of the devices are written on cards,
which are placed face down on a desk. A child selects a
card naming the lever device to which they must respond.
They must describe what the device is used for, how it
works and be able to identify the load, fulcrum and where
the effort is applied.
Teacher’s Notes
Children are often surprised how much
effort is needed to lift a load positioned
a long way from the fulcrum, especially
when effort must be applied close to
the fulcrum. The other surprise comes
when the load end pivots round very
quickly, often hitting the back of their
hand. To explore this further, some
groups could be asked to use blue
Rods and others white Rods instead
of the yellow ones in the original
building plans.
levers and pulleys
website: www.knexeducation.co.uk
Education
®
20


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide in the language / languages: English as an attachment in your email.

The manual is 7,26 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide

Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide Instructions - German - 62 pages

Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide Instructions - Dutch - 62 pages

Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide Instructions - French - 62 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info