KS3 ~ Year 7 ~ Bacteria & Enzymes in Digestion

This lesson is designed for the KS3 Year 8 Science course, specifically the B2 1.1 Health & Lifestyle.

For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience.

The lesson begins with an introduction into the role of bacteria in digestion. This then follows into a video on digestion, students should watch the video and whilst watching they will answer a set of questions. Once this task has been completed students can self-assess their work using the mark scheme provided.

Students will now be introduced to the idea of ‘enzymes’ - molecular scissors which break down larger molecules into smaller, soluble molecules which can then be absorbed by the small intestine. This idea is demonstrated with a diagram, students can take notes on this in their books - including a sketch of the enzymes at work.

For the next activity, students will each be given a different bit of information on a specific type of enzyme - lipase, carbohydrase and protease. Students will then need to share information, as they walk around the classroom, in order to complete questions and a summary table on their own worksheet. Once this task has been completed, students will then use the mark scheme provided on the PowerPoint to peer-assess their work.

The final activity is an exam-style question, to assess students knowledge of what they have learned so far this lesson. Students can mark their work using the mark scheme provided.

The plenary task requires students to write a twitter message about what they have learned this lesson, including #keywords.

All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)