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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