679357
36
Zoom out
Zoom in
Previous page
1/62
Next page
35
Lesson�6:�Scissors
Connected 1st Class Levers
Time: 1 - 1.5 hours
LearningObjectives - Children should learn:
•torelatesciencetothewaysinwhichfamiliar
machines work
•tocarryoutasimpleinvestigation
Vocabulary
lever, compound, connected,
1st Class levers, pivot, fulcrum,
beam, handles, force, blades,
wedge, object, resistance, design,
specification, compare, labelled,
drawings, shearing, wedges, because,
evaluate, modify, modifications
Resources
Each group of 2-3 children
will need:
1 K’NEX Understanding
Mechanisms: Levers and Pulleys kit
with Building Instructions booklet
Dot stickers or pieces of masking
tape
Scissors
Paper and card of different thickness
Felt-tipped pens
Modelling clay/Plasticine
You will need:
Selection of different types of
scissor-like cutting devices. For
example, wire cutters, garden
shears, pliers, and hair-cutting
scissors.
NOTE: These items should be used for
demonstration purposes only. Do not
give these implements to the children.
Possible Teaching and Learning Activities
Introduction
In this lesson the children investigate a familiar tool and
apply their knowledge and understanding of forces when
used in the design of a cutting machine – a pair of scissors.
Whole Class
Demonstrate how scissors can be safely used to cut
paper and textiles.
Demonstrate how the two blades work: the blades cut
across each other in a shearing action.
Teacher’s Notes
A pair of scissors uses two simple
machine concepts in its design: levers
and the wedge. The cutting action
itself is produced by the sharpened
edges of the blades, which are in
fact wedges that work in opposite
directions to each other.
Lesson 6: The Scissors
levers and pulleys
website: www.knexeducation.co.uk
Education
®
36


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