Lesson Plan: P2.4.12

LESSON PLAN

Teacher	Subject	Period	Date	Year	Ability	LSA/Other Support
	Science

Context and Landmark Assessment	P2.4.12 Landmark Assessment: Progress Observation Opportunity

Remember to have high expectations

Lesson Title: Today we are learning about
How are lenses used to help us see?

Remember to check for PROGRESS
Focus on Knowledge, Skills and Understanding

Success Criteria:	You will show your learning by...
The distance from the lens to the principal focus is called the focal length. The magnification produced by a lens can be calculated using the equation: magnification = image height / object height Magnification is a ratio and so has no units. Image height and object height should both be measured in either mm or cm. Ray diagrams are used to show the formation of images by convex and concave lenses. Students should be able to construct ray diagrams to illustrate the similarities and differences between convex and concave lenses. In ray diagrams a convex lens will be represented by: <--> [In ray diagrams] a concave lens will be represented by: >--< The image produced by a convex lens can be either real or virtual. The image produced by a concave lens is always virtual. A lens forms an image by refracting light. In a convex lens, parallel rays of light are brought to a focus at the principal focus.

Success Criteria:

You will show your learning by...

The distance from the lens to the principal focus is called the focal length.
The magnification produced by a lens can be calculated using the equation: magnification = image height / object height
Magnification is a ratio and so has no units.
Image height and object height should both be measured in either mm or cm.
Ray diagrams are used to show the formation of images by convex and concave lenses.
Students should be able to construct ray diagrams to illustrate the similarities and differences between convex and concave lenses.
In ray diagrams a convex lens will be represented by: <-->
[In ray diagrams] a concave lens will be represented by: >--<
The image produced by a convex lens can be either real or virtual.
The image produced by a concave lens is always virtual.
A lens forms an image by refracting light.
In a convex lens, parallel rays of light are brought to a focus at the principal focus.

Think about how you can match the needs of ALL students

Keywords:

Refraction: when a wave passes through a medium with different density it speeds up or slows down (1)
Magnification: enlarging an image (1)
Focus: producing clear visual definition (1)

Links: Literacy, Numeracy, SMSC, British values

Memory Anchor:

AFL/Key Questions:

(Physics Only)What is the focal length?
The distance from the lens to the principal focus is called the focal length.
(Physics only) What is the equation that links image height, magnification and object height?
The magnification produced by a lens can be calculated using the equation: magnification = image height / object height
(Physics only) What are the units for magnification?
Magnification is a ratio and so has no units.
(Physics only) What is the unit for image height?
Image height and object height should both be measured in either mm or cm.
(Physics Only) How can images by convex and concave lenses be represented?
Ray diagrams are used to show the formation of images by convex and concave lenses.
(Physics Only) How could you illustrate the similarities and differences between convex and concave lenses?
Drawing ray diagrams to illustrate the similarities and differences between convex and concave lenses.
(Physics Only) How are convex lenses represented in ray diagrams?
In ray diagrams a convex lens will be represented by: <-->
(Physics Only) How are concave lenses represented in ray diagrams?
[In ray diagrams] a concave lens will be represented by: >--<
(Physics Only) What type of images can be produced by convex lens?
The image produced by a convex lens can be either real or virtual.
(Physics Only) What type of image can be produced by concave lens?
The image produced by a concave lens is always virtual.
(Physics Only) How does a lens form an image?
A lens forms an image by refracting light.
(Physics Only) How is a convex lens used to focus an image?
In a convex lens, parallel rays of light are brought to a focus at the principal focus.

Identify questions for high, middle, low and identify questioning techniques- Challenge questions

Learning Phases/Episodes

Think about how you can match the needs of ALL students
Differentiation: AGT, SEND, LLL, Disadvantaged
Remember to check for PROGRESS

Starter Activity	Differentiation and Challenge question/task
Students to copy and complete the keywords. Teacher reveals missing letters; Students correct mistakes; Discuss the scientific meanings of the words. Students to write down the definitions of the most important / new keywords. Discuss the 'Memory Anchor'. What does it show? How does it relate to the what we are learning about today (title)?

Think about PACE – Develop, consolidate and deepen knowledge, skills and understanding

Teacher or Student lead?	Differentiation and Challenge question/task

Progress Check	Extension

Remember to give time to apply knowledge, skills and understanding

Teacher or Student lead?	Differentiation and Challenge question/task

Progress Check	Extension

Teacher or Student lead?	Differentiation and Challenge question/task

Progress Check	Extension

Teacher or Student lead?	Differentiation and Challenge question/task

Progress Check	Extension

Plenary	Differentiation and Challenge question/task
Students to answer the 'Key Questions' with learning partners.
Progress Check Teacher to reveal and discuss the answers to the questions.	Extension What have learnt about the 'Big Ideas' today?

Homework	Differentiation and Challenge question/task