雷春科普:mRNA疫苗科普 写于2020年感恩节前夕
关键词:#疫苗
前言
人体的防御系统,是一个有条有理、精确细致的复杂体系。
教育 – 家庭 – 心理 – 健康
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AFI & ANACP 《 答“疫”解惑》的两次疫情健康讲座
Physical Science 2020 Fall Syllabus
Course Name: Physical Science with Lab Semester: Fall 2020
Location: CECFC High School Room 222 and or online
Physical Science Teaching Notes
Fall 2020
Course Plan
Week
Date
Topic
To Do
Week 1
8/10-15
Online learning Apps
Teams, OneNote, Calendar. Outlook, Form, Flipgrid, Quizlet, Insights
Week 2
8/17-21
Chapter 11 Motion
Chapter 12 Forces and Motion
11.1 Distance and Displacement
11.2 Speed and Velocity
11.3 Acceleration
12.1 Forces
12.2 Newton’s First and Second Laws of Motion
Week 3
8/24-28
Chapter 12 Forces and Motion
12.3 Newton’s Third Law of Motion and Momentum
12.4 Universal Forces
Week 4
8/31-9/4
Chapter 13 Forces in Fluids
13.1 Fluid Pressure
13.2 Forces and pressure in Fluids
13.3 Buoyancy
Week 5
9/8-11
9/7 no class
Chapter 14 Work, Power, and Machines
14.1 work and power
14.2 work and machines
14.3 Mechanical advantage and Efficiency
14.4 Simple Machines
Week 6
9/14-18
Chapter 15 Energy
15.1 Energy and Its Forms
15.2 Energy Conversion and Conservation
15.3 Energy Resources
Week 7
9/21-25
Note: 9/23 SAT test day. No in person class
Chapter 16 Thermal Energy and Heat
16.1 Thermal Energy and Matter
16.2 Heat and Thermodynamics
16.3 Using Heat
Week 8
9/28-10/2
Chapter 17 Mechanical Waves and Sound
17.1 Mechanical Waves
17.2 Properties of Mechanical Waves
17.3 Behavior of Waves
17.4 Sound of Hearing
Week 9
10/5-9
Chapter 2 Properties of Matter
Chapter 3 States of Matter
2.1 Classifying Matter
2.2 Physical Properties
2.3 Chemical Properties
3.1 Solids, liquids and gases
3.2 The gas laws
Week 10
10/12-14
10/15-16 fall break
Chapter 3 States of Matter
Chapter 4 Atomic Structure
3.3 Phase changes
4.1 Studying Atoms
4.2 The Structure of an Atom
Week 11
10/19-23
Chapter 4 Atomic Structure
Chapter 5 The Periodic Table
4.3 Modern Atomic theory
5.1 Organizing the Elements
5.2 The Modern Periodic Table
5.3 Representative Groups
Week 12
10/26-30
Chapter 6 Chemical Bonds
6.1 Ionic Bonding
6.2 Covalent Bonding
6.3 Naming Compounds and Writing Formulas
6.4 The Structure of Metals
Week 13
11/2-6
Chapter 7 Chemical Reactions
7.1Describing Reactions
7.2 Types of Reactions
7.3 Energy Changes in Reactions
7.4 Reaction Rates
7.5 Equilibrium
Week 14
11/9-13
Chapter 8
Solutions, Acids, and Bases
8.1 Formation of Solutions
8.2 Solubility and Concentration
8.3 Properties of Acids and Bases
8.4 Strength of Acids and Bases
Week 15
11/16-20
Chapter 9
Carbon Chemistry
9.1 Carbon Compounds
9.2 Substituted Hydrocarbons
9.3 Polymers
9.4 Reactions in Cells
Week 16
11/23-27 Thanksgiving Break
Week 17
11/30-12/4
Chapter 10
Nuclear Chemistry
10.1 Radioactivity
10.2 Rates of Nuclear Decay
10.3 Artificial Transmutation
10.4 Fission and Fusion
Week 18
12/7-9
12/10-15 finals
Physical Science
Text book: Physical Science Concepts in Action by Wysession, Frank, Yancopoulos Publisher: Pearson, 2011. ISBN: 0-13-317211-2
Part 1 Physics
Chapter 11 Motion
11.1 Distance and Displacement
11.2 Speed and Velocity
11.3 Acceleration
In correct law of motion https://www.youtube.com/watch?v=Yf0BN0kq7OU
Motion https://www.youtube.com/watch?v=elAzkXyRQFU
Motion – Introduction https://www.youtube.com/watch?v=elAzkXyRQFU&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=89
Motion and its Types – Part 1 https://www.youtube.com/watch?v=8qh–3X6E5w&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=87
Motion and its Types – Part 2 https://www.youtube.com/watch?v=7J_Pi4Xuk7Y&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=88
Uniform Motion and Non-uniform Motion https://www.youtube.com/watch?v=VFfF3F-G9Uk&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=2
Motion and Measurement Of Distances – Introduction https://www.youtube.com/watch?v=epkSGnqhv-8&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=86
Distance and Displacement https://www.youtube.com/watch?v=21BwUNDOQno&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp
Scalar Quantity and Vector Quantity https://www.youtube.com/watch?v=Pj8Zh0A-uLU&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=3
Speed https://www.youtube.com/watch?v=S9Z1a3sZfHY
What is Speed? | Motion and Time https://www.youtube.com/watch?v=S9Z1a3sZfHY&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=90
What is Average Speed? https://www.youtube.com/watch?v=EfLLkGjBKog&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=99
Velocity https://www.youtube.com/watch?v=apewLkLAR-U&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=4
Acceleration https://www.youtube.com/watch?v=vxFYfumAAlY&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=5
Equations of Motion https://www.youtube.com/watch?v=xViRvJxTu6k&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=6&pbjreload=101
Chapter 12 Forces and Motion
• 12.1 Forces
• 12.2 Newton’s First and Second Laws of Motion
• 12.3 Newton’s Third Law of Motion and Momentum
• 12.4 Universal Forces
Force Part 1 https://www.youtube.com/watch?v=B6mi1-YoRT4&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=7
Force Part 2 https://www.youtube.com/watch?v=iGwBZTWySWk&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=8
Force Scalar or Vector? https://www.youtube.com/watch?v=Yfc6rAFOI4I&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=9
Free Body Diagrams https://www.youtube.com/watch?v=4Bwwq1munB0&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=10
Newton’s First Law of Motion https://www.youtube.com/watch?v=5oi5j11FkQg&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=11
Inertia and Mass https://www.youtube.com/watch?v=YbWjx3LUc0U&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=12
Newton’s Second Law of Motion https://www.youtube.com/watch?v=8YhYqN9BwB4&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=13
Newton’s Third Law of Motion https://www.youtube.com/watch?v=TVAxASr0iUY&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=14
Gravity https://www.youtube.com/watch?v=Kw51KiZhm0I&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=15
The Universal Law of Gravitation – Part 1 https://www.youtube.com/watch?v=c9shwPMpSq8&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=16
The Universal Law of Gravitation – Part 2 https://www.youtube.com/watch?v=lbOXZ2tcTgc&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=17
Motion and Gravity https://www.youtube.com/watch?v=Sw2P1hpwpqU&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=18
Are Mass and Weight the same thing? https://www.youtube.com/watch?v=rFdbY_V7vIo&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=19
Difference between Thrust and Pressure? https://www.youtube.com/watch?v=UKl33k-qQ0k&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=20
Chapter 13 Forces in Fluids
• 13.1 Fluid Pressure
• 13.2 Forces and pressure in Fluids
• 13.3 Buoyancy
Do Liquids Exert Pressure? https://www.youtube.com/watch?v=Cvp6mLWbgaM&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=21
What is Buoyancy? https://www.youtube.com/watch?v=khc2wUBsFU4&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=22
What is Density? https://www.youtube.com/watch?v=QXoQbWoIiRE&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=23
What is the Archimedes’ Principle? https://www.youtube.com/watch?v=05WkCPORlj4&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=24
What is Relative Density? https://www.youtube.com/watch?v=omRMpPYh_vw&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=25
What is Force? | Force and Pressure https://www.youtube.com/watch?v=IJWEtCRWGvI&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=26
What are CONTACT Forces? – Part 1 https://www.youtube.com/watch?v=nk35aGqJ-F8&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=27
What are CONTACT Forces? – Part 2 https://www.youtube.com/watch?v=kUVZIRz7PKs&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=28
What are NON-CONTACT Forces? – Part 1 https://www.youtube.com/watch?v=SybIX2nEn1E&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=29
What are NON-CONTACT Forces? – Part 2 https://www.youtube.com/watch?v=eTuiLNYz7JM&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=30
What is Pressure? https://www.youtube.com/watch?v=zlLpKzPz84Q&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=31
What is Air Pressure? https://www.youtube.com/watch?v=28grZdfexT8
Air Pressure and Wind – Part 1 https://www.youtube.com/watch?v=C9gjZ1Uika4
Air Pressure and Wind – Part 2 https://www.youtube.com/watch?v=TZqFQ5isMQk
Atmospheric Pressure | Force and Pressure https://www.youtube.com/watch?v=KndNN28OcEI&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=32
What is Friction? https://www.youtube.com/watch?v=n2gQs1mcZHA&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=33
Factors affecting Friction | Frictional Force https://www.youtube.com/watch?v=ybpFEB6Mt88&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=34
What is Rolling Friction? https://www.youtube.com/watch?v=HRe90ySP38U&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=35
Does Static Friction exist? https://www.youtube.com/watch?v=9SMp-jnh8lg&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=36
What is Fluid Friction? https://www.youtube.com/watch?v=ZjlBlUvqnPo&list=PLmdFyQYShrjcoTLhPodQGjtZKPKIWc3Vp&index=37
Chapter 14 Work, Power, and Machines
14.1 work and power
14.2 work and machines
14.3 Mechanical advantage and Efficiency
14.4 Simple Machines
Introduction to work and energy https://www.youtube.com/watch?v=2WS1sG9fhOk
Work, Energy, and Power https://www.youtube.com/watch?v=w4QFJb9a8vo
Work and Energy https://www.youtube.com/watch?v=zVRH9d5PW8g
Kinetic Energy and Potential Energy https://www.youtube.com/watch?v=g7u6pIfUVy4
Pulley, Wheel, Lever and More Simple Machines – Science for Kids https://www.youtube.com/watch?v=jtk2V0M6k3M
Work and Simple Machines PPT Video https://www.youtube.com/watch?v=P7xS2Ali1t8
3 types of levers https://www.youtube.com/watch?v=J2Nt_rRa3JY
levers https://www.youtube.com/watch?v=OdM2jWg2uEE
Pulleys https://www.youtube.com/watch?v=aMx7nIIH9ik
雷春杂文:疫情中我在美国高中上网课 2020年7月25日
这次百年一遇的世纪疫情,对美国的教育界,产生了巨大的冲击,特别是中小学生。我所在的高中,只有我和另外一个手语老师坚持进行现时synchronous线上教学,使得绝大部分学生没有耽误学习,部分学生还得到了更大的提高。
我首先得益于中文学校的教学实践。在中国疫情爆发后,北美的中文学校协会,组织了多场免费的实时线上教学演示课,帮助中文老师学会建立并使用Zoom和Google Classroom账户,利用这两个基本工具,实现成功的线上教学。并在二月底就开始了线上教学的试用,而且灵活到Hybrid的形式,可以面对面和网上同时进行。
其次,作为华人,我对中国疫情的发展及其严重程度,有比较清晰的认识