Download Student Interactive Digestion Lesson

Digestive System
Interactive lesson
Learning Plan
Teacher:
Subject: Biology
Group:
No. On roll:
Boys:
Date:
SEN / G &T / Targeted Students:
Girls:
Ability Range:
Level
Context: (Where were we? Where are we? Where are we going?)
In the previous lessons students have been looking at what the difference is between things which are alive
and dead and the role of the skeleton in the body. The preceding lesson was the first in a series of lessons
looking at what organs are found in the human body and what role they have within the body. This lesson
leads on from the previous by looking at the digestive system and bringing some of the organs looked at in
the previous lesson together so they can be looked at as an organ system. The lesson following this one
carries on looking at digestion but looks in particular at the role of enzymes in breaking down food.
Learning Objective: Today the students are learning to…
Describe the structure of the digestive system, understand that it breaks down food and that this food is
then absorbed into the blood stream.
Learning Outcomes: To show their learning, by the end of the lesson…
ALL students will be able to name to organs involved in the digestive system (Level 3-4)
MOST students will understand what the functions of the different organs involve are (Level 4-5)
SOME students will be aware that enzymes are involved in breaking down food and that different enzymes
are involved at different stages (Level 5-6)
Starter:
Students will find a diagram of the digestive system on their desks.
On the board is a list of organs which students will need to use to label their diagrams.
Take register
Get students to swap organ label sheets
Go through the correct answers with students and get them to mark each other’s sheets
Get students to pass back the sheets and ask for a hands up to show how many they have got
correct
This will provide feedback on how much students already know and will give students immediate
feedback on how they did in the starter.
Go through lesson objectives
Time
10-15
mins
Activities / Timings:
Hand out to students “Digestive system APP activity sheets”
Explain to students that they will be using this sheet for the next couple of lessons
Get students into pairs and get them to stand at a particular part of the digestive system
At each part of the digestive system will be information which students can use to fill out their
activity sheets
Give each pair 2 mins at each part before getting them to move around
Whilst students are carrying out this task more around asking particular questions to assess how
much they are taking in
After students have completed the circus of organs get them sat back down
Once students are sat back down get them to put their sheets away and hand out ‘Digestion
DARTS’ activity
Get students to arrange where they think the different cards go to complete the diagram
Go through what they correct arrangement should be
Assess roughly what level students are working at by asking for a show of hands for how many
correct answers students have got
30 mins
10-15
mins
Plenary:
Digestive System Who Wants to be a Millionaire
On their desk’s students should each have a set of ABCD cards which they can hold up to give
answers to each question. Go through 10 questions which get progressively higher levelled to
assess what students have learnt during the lesson and what rough level they are working at.
Review lesson objectives
Get students to pack away and stand in silence behind their stools
Dismiss students when ready
Personalised Learning
Own Learning (Homework): NA, homework will be set at the end of the following lesson as then it can
include questions on enzymes
Resources needed: Power point. Work sheets
Possible Areas of Focus during the Lesson
Personal
Learning
and
Thinking
Skills
ECM
Questioning
Across Curriculum
AFL
Independent
Enquirers
Be Healthy
Knowledge
Literacy
Objective-led
Creative
Thinkers
Stay Safe
Comprehension
Numeracy
Oral
Feedback
Reflective
Learners
Enjoy and Achieve
Application
ICT
Written
Feedback
Team
Workers
Positive
Contribution
Analysis
WRL
Peer/SelfAssessment
Self
Managers
Economic WellBeing
Synthesis
Enterprise Skills
TargetSetting
Evaluation
Citizenship
Support Staff
Effective
Participators
Modelling
Sharing
Good Work
Reflect and
Evaluate
Performance Management Target:
PM reviewer:
The Digestive System
Name of
organ:______________________
What does it do: _______________
_____________________________
Name of
organ:_____________________
_
Enzyme present:______________
What does it do: _______________
_____________________________
How does it do it: ______________
_____________________________
Name of
organ:______________________
Name of
organ:______________________
What does it do: _______________
_____________________________
What does it do: _______________
_____________________________
What does bile do: _____________
_____________________________
Enzyme present:______________
Name of
organ:______________________
What does it do: _______________
_____________________________
Name of
organ:______________________
What does it do: _______________
_____________________________
Why does it absorb water: _______
_____________________________
Name of
organ:______________________
What does it do: _______________
_____________________________
What enzymes does it produce:
_____________________________
_
Name of
organ:______________________
What does it do: _______________
_____________________________
How is it adapted:______________
_____________________________
Name of
organ:______________________
What does it do: _______________
_____________________________
Digestive System Mark Sheet
Mouth & Salivary Glands
Oesophagus
Digestion of a carbohydrate called
starch starts in the mouth because
saliva contains a carbohydrase
enzyme called amylase
This muscular tube carries
food from the mouth to the
stomach
Gall Bladder
Stomach
Food is mixed with acid and protease
The Gall Bladder produces
enzymes in this muscular bag. The
bile which breaks down fat
acidic environment is ideal for protease
enzymes and kills bacteria. Protease
in the small intestine
enzymes digest proteins into amino
acids
Pancreas
Protease, carbohydrase and
lipase enzymes are made here
Large Intestine
flow down the pancreatic duct
and into the small intestines
Water and minerals ions
Small Intestine
(salts) are absorbed into
the blood here
Nutrients from the
digested food are absorbed
into the blood stream here
Anus
Faeces leave the body
through this sphincter
Rectum
Faeces are stored here
before excretion
Mouth & Salivary Glands
Esophagus
Stomach
Digestion of a carbohydrate called
starch starts in the mouth because
saliva contains a carbohydrate
enzyme called amylase
This muscular tube carries
Food is mixed with acid and protease
food from the mouth to the
stomach
enzymes in this muscular bag. The
acidic environment is ideal for protease
enzymes and kills bacteria. Protease
enzymes digest proteins into amino
acids
Gall Bladder
Pancreas
The Gall Bladder produces
Protease, carbohydrate and
bile which breaks down fat
lipase enzymes are made here
Water and minerals ions
in the small intestine
flow down the pancreatic duct
(salts) are absorbed into
and into the small intestines
the blood here
Small Intestine
Anus
Large Intestine
Nutrients from the
digested food are absorbed
Feces leave the body
through this sphincter
Rectum
Faeces are stored here
before excretion
into the blood stream here
Mouth
The mouth breaks up
food using teeth
It contains salivary
glands which helps to
break down
carbohydrate by
releasing saliva
The saliva also contains
the enzyme amylase
Esophagus
This muscular tube
carries food from the
mouth to the stomach
It pushes food down it
by the process of
peristalsis
Peristalsis is the
movement of muscles to
move food along
Stomach
In the stomach food is
mixed with acid and
enzymes to continue
breaking it down
The enzyme present is
pepsin which digests
proteins into amino
acids
Small intestines
This is where small soluble food
molecules are absorbed into the
blood
The small intestines are adapted
in the following ways The inner surface is covered in
tiny villi to give a large surface
area for absorption
 It has a good blood supply
Large intestines
Water is reabsorbed into the
blood here
If excess water
was not absorbed
the faeces would be
too runny
Rectum
Faeces are stored
here before
excretion
Pancreas
The pancreas produces
enzymes to continue
digestion
The enzymes it produces
are carbohydrase,
protease and lipase
Gall Bladder
Green bile is made
in this organ
Bile breaks up fat
Anus
Faeces leave the
body through this
sphincter