3rd Grade Unit 1 Curricular Resources

Unit 1: Forces and Interactions                                                                            9 weeks 
a

In this first unit, students focus on understanding the cause and effect relationships of interactions between objects.  Students will explore the effects of balanced and unbalanced forces on the motion of an object.   As they explore, they will understand how force acts on a particular object and has both strength and direction.  They will develop the understanding that an object at rest typically has multiple forces acting upon it, with a zero net force on the object.  This will lead to the understanding that forces not adding to zero can cause changes in the object’s speed or direction of motion.


Students will also explore patterns of an object’s motion and use these patterns to predict future motion.  They will explore different types of interactions: those where objects are in contact and those that do not require contact, like electric and magnetic forces.  Students will understand the sizes of the forces in each situation depend on properties of the objects and their distances apart, as well as a magnet’s orientation relative to another magnet. 

2

Collaboratively, students will plan and conduct investigations to produce data that will serve as the basis for evidence of the effects of balanced and unbalanced forces on the motion of an object.  Students will make observations and measurements of an object’s motion and use this data as evidence that a pattern can be used to predict future motion.  Students will ask questions and investigate cause and effect relationships of electric and magnetic interactions.  Like scientists, students will use a variety of methods, tools and techniques to conduct investigations.  They will use the engineering design process to solve a simple design problem by applying scientific ideas and understandings about magnets.

 
v
 Background Knowledge Videos: 

These videos were created by Paul Anderson, Bozeman Science,
to assist teachers with the background knowledge involved in the Disciplinary Core Ideas.
PS2A - Forces and Motion          PS2B - Types of Interactions

 
 Essential Questions:

How do equal and unequal forces on an object affect the object?

How can magnets be used?

How can we explain and predict interactions between objects?

 
p 
Unit 1 Planning Options

This document was created as a by-product of a group of teachers and facilitators working through the unit planning process.
It provides clarification with the unit standards and options for instructional planning of the 9 week unit in your classroom.

Resources include Discovery Education Science Techbook as well as additional lessons, activities, experiences, and assessments.
 

**See Unit Plan for information on Foundational Knowledge for this unit**
 
d  
Additional Lessons and Instructional Resources
In addition to the Discovery Education Science Techbook, the resources and lessons below are available for use during this unit of study.

Using a KLEWS Chart      KLEWS Chart    Example KLEWS Chart   
KLEWS Chart-SMART notebook

Science Writing Sentence Frames and Words  

Scientific Explanation Student Recording Pages: 
Claim & Evidence  Word   PDF
Claim, Evidence and Reasoning (Landscape)  Word  PDF  
Claim, Evidence, and Reasoning (Portrait)   Word  PDF
Claim, Evidence, Reasoning Poster 

Lessons and Activities

Tug of War

How Do You Make a Seesaw Teeter-Totter?   Lesson    PPT

Am I Magnetic?  Station Instructions   Student Page

How Can I Use a Magnet to Move an Object? (assessment option)

ACT Aspire-Inspired Assessment

Video Resources

Truck Pull 

 
 u Assessment Probes:
The following assessment probes can be used in this unit.  
They can be found in the Physical Science Assessment Probes 3rd Grade Folder.
(requires @rps30 account)
How Far Did It Go?
Rolling Marbles
Skate Park
Force and Motion Ideas
Big and Small Magnets















vBackground Knowledge Videos: 
These videos were created by Paul Anderson, Bozeman Science, to assist teachers with the background knowledge involved in the Disciplinary Core Ideas in the Standards
vBackground Knowledge Videos: 
These videos were created by Paul Anderson, Bozeman Science, to assist teachers with the background knowledge involved in the Disciplinary Core Ideas in the Standards