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Food and Drink in, Physical & Chemical breakdown, Absorption, Waste product out.
- How specialised cells become organised into tissues.
- How different tissues work together to form an organ.
- The position of the main organs of human digestive system.

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1. Digestion starts in the stomach
2. You cannot swallow food when you are upside down
Can be addressed using a starter quiz

https://www.onhealth.com/content/1/digestive_health_myths

https://digitalcommons.brockport.edu/cgi/viewcontent.cgi?article=2114&context=ehd_theses

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Before, students begin learning about the digestive system, we need to STOP for a second, and review students common misconceptions regarding the digestive system.

It is very important for you, as a teacher, to demystify some of the myths revolving around the digestive system in order to give students a clearer view of what makes up their digestive system and how it functions. As a teacher, you can use your discretion whether you would like to review them all at the beginning, or throughout the lesson before introducing a relevant theme.

Here are some common misconceptions:

1. Misconception #1: Digestion starts in the stomach.

Fact: Digestion starts in the mouth, where the salivary amylase (a digestive enzyme) acts on the starch in food.

2. Misconception #2: Digestion ends in the stomach or large intestine.

Fact: Digestion ends in the small intestine, where carbohydrates, proteins and fats are digested. Proteins are digested in the stomach. Water and minerals are absorbed into the bloodstream in the large intestine.

3. Misconception #3: The digestive system has two outlets - one for feces and one for urine (i.e., urinary system).

The digestive system has one outlet - the anus through which undigested food is discharged from the body.

4. Misconception #4: Digestion is the process which releases usable energy from food.

Fact: Digestion is the breakdown of large food molecules into smaller ones. Respiration is the process by which energy is released from food.

5. Misconception #5: You can not swallow food when you're upside-down.

Fact: Regardless of your posture, food will travel in one direction due to peristalsis (muscle contractions) + gravitational force.

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Before, students begin learning about the digestive system, we need to STOP for a second, and review students common misconceptions regarding the digestive system. It is very important for you, as a teacher, to demystify some of the myths revolving around the digestive system in order to give students a clearer view of what makes up their digestive system and how it functions.

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1. Model of the digestive system
2. Video - demonstration
3. Digestive enzymes table - end products and where produced
4. Cut out and stick - enzymes + substrate = products
5. Cut and match the different organs of the digestive system with their function.

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1. Active transport - using small plastic balls to demonstrate diffusion.
2. Video  - showing a camera's pathway through the body from mouth to anus
3. Practical with high ability - visking tubing with starch
4. use a bath mat to show the wall of the small intestine and the villi - to show the increase in surface area
5. Use socks and apple to show digestion. Use apple puree into the socks and show why digestion is important.
6. Use oil, detergent and water to show the action of lipase

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1. Demonstration of Enzyme inhibitors - using Copper sulfate, where the rate of reaction is reduced (rate of reaction experiements), which is them compared to the one without cupper sulfate.
2. Optimum Conditions - pH, temperature.
3. Enzyme Substrate, location, conditions.
4. Organs and Tissues (videos/animations, gap fill tasks).
5. Disorders of the digestive system (research task).
6. Physical and Chemical Digestion.
7. Adaptations for Digestion - S.A to Vol Ratio.
8. Use cereal boxes to talk about fortified vitamins - vitamin B groups.
9. Link up real life examples for enzyme inhibitors - penicillin works, pheynylketonuria - discuss heel prick test;

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1/ Exam question
2/ Kahoot
3/ Edpuzzle - add questions to the video
4/ Beat the grid - using Bloom's for increasingly difficult questions - stretch and challenge
5/  Workbooks
6/ Infographic of Digestive System
7/ Poster
8/ Draw parts of the system and fit together - puzzle - either parts already drawn or they have to draw
9/ Mindmaps

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1. Fill in the gaps
2.Enzymes table with more/less information Enzyme - Substrate - End products - Where produced
3.Beat the question grid

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Link to all our Resources
* KS3, KS4, KS5 resources (including a few power points) to teach Digestion
* Some exam papers and mark schemes included.
https://drive.google.com/drive/folders/1JLdF9tvoNTmAao-83wit6aNO3xHj6fjF?usp=sharing