Lesson Plan: B1.4.02

LESSON PLAN

Teacher	Subject	Period	Date	Year	Ability	LSA/Other Support
	Science

Context and Landmark Assessment	B1.4.02 Landmark Assessment: Progress Observation Opportunity

Remember to have high expectations

Lesson Title: Today we are learning about
How are specialised plant cells adapted to their function?

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

Success Criteria:	You will show your learning by...
Students should be able to explain how the structure of root hair cells, xylem and phloem are adapted to their functions. Students should be able to explain the effect of changing temperature, humidity, air movement and light intensity on the rate of transpiration. Students should be able to understand and use simple compound measures such as the rate of transpiration. Students should be able to translate information between graphical and numerical form Students should be able to plot and draw appropriate graphs, selecting appropriate scales for axes Students should be able to extract and interpret information from graphs, charts and tables. The roots, stem and leaves form a plant organ system for transport of substances around the plant. Students should be able to describe the process of transpiration and translocation, including the structure and function of the stomata. Root hair cells are adapted for the efficient uptake of water by osmosis, and mineral ions by active transport. Xylem tissue transports water and mineral ions from the roots to the stems and leaves. It is composed of hollow tubes strengthened by lignin adapted for the transport of water in the transpiration stream. The role of stomata and guard cells are to control gas exchange and water loss. Phloem tissue transports dissolved sugars from the leaves to the rest of the plant for immediate use or storage. The movement of food molecules through phloem tissue is called translocation. Detailed structure of phloem tissue or the mechanism of transport is not required.

Success Criteria:

You will show your learning by...

Students should be able to explain how the structure of root hair cells, xylem and phloem are adapted to their functions.
Students should be able to explain the effect of changing temperature, humidity, air movement and light intensity on the rate of transpiration.
Students should be able to understand and use simple compound measures such as the rate of transpiration.
Students should be able to translate information between graphical and numerical form
Students should be able to plot and draw appropriate graphs, selecting appropriate scales for axes
Students should be able to extract and interpret information from graphs, charts and tables.
The roots, stem and leaves form a plant organ system for transport of substances around the plant.
Students should be able to describe the process of transpiration and translocation, including the structure and function of the stomata.
Root hair cells are adapted for the efficient uptake of water by osmosis, and mineral ions by active transport.
Xylem tissue transports water and mineral ions from the roots to the stems and leaves. It is composed of hollow tubes strengthened by lignin adapted for the transport of water in the transpiration stream.
The role of stomata and guard cells are to control gas exchange and water loss.
Phloem tissue transports dissolved sugars from the leaves to the rest of the plant for immediate use or storage. The movement of food molecules through phloem tissue is called translocation.
Detailed structure of phloem tissue or the mechanism of transport is not required.

Think about how you can match the needs of ALL students

Keywords:

Transpiration: the movement of water up the plant against the force of gravity. (1)
Translocation: the movement of materials from one location to another in a plant. (1)
Diffusion: the movement of particles from an area of high concentration to low concentration. (1)
Function: the job or role that something has or is specialised for. (1)

Links: Literacy, Numeracy, SMSC, British values

Memory Anchor:

AFL/Key Questions:

How are the following adapted to their functions: a) root hair cells, b) xylem, c) phloem?
Root hair cells have a large surface area to volume ratio to allow for effective transport of substances. The inside of the xylem vessels is made of dead cells that are waterproof to allow water up the stem. The phloem are made of live cells meaning transport can happen by active transport as well as diffusion.
How does increasing temperature, humidity and light intensity affect the rate of transpiration?
Increasing temperature increases transpiration due to increased evaporation of water from the stomata. Increasing humidity decreases the rate of transpiration due to the concentration of water particles on the outside of the leaf being higher and therefore osmosis not occurring. Increasing light intensity increases the rate of transpiration due to the increase in the rate of photosynthesis.
Which parts of the plant are involved in transporting substances?
The roots, stem and leaves form a plant organ system for transport of substances around the plant.
What are translocation and transpiration and how do they work?
Transpiration is the process by which water evaporates from the leaves, through the opening of the stomata, which results in more water being drawn up from the roots. Translocation is the movement of nutrients and other substances from the leaves to the rest of the plant.This happens through diffusion and active transport.
What is the job of the root hair cells and how are they adapted to it?
Root hair cells have a large surface area to volume ratio so that they are adapted for the efficient uptake of water by osmosis, and mineral ions by active transport.
What is the role of xylem tissue and how is it adapted for it?
Xylem tissue transports water and mineral ions from the roots to the stems and leaves. It is composed of hollow tubes strengthened by lignin adapted for the transport of water in the transpiration stream.
What is the role of the stomata and guard cells?
The role of stomata and guard cells are to control gas exchange and water loss.
What is the role of the phloem and what is the name of this process?
Phloem tissue transports dissolved sugars from the leaves to the rest of the plant for immediate use or storage. The movement of food molecules through phloem tissue is called translocation.

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