Lesson
Time |
Engaging the Student (Entry Task) |
Developing the Ideas--Lesson |
Checking for Understanding (exit ticket) |
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Student Handout |
Teacher/Lesson Notes |
Materials | |||
90 min |
Entry Task Procedures are found in the full lesson plan, "Part 1 (Engage): Modelling Carbohydrates" and will take 15-30 minutes.
INTRO: Point out for students some of the questions generated in Lesson 1-1 B that had to do with glucose and how elevated glucose levels play an important role in type 2 diabetes.
Ask students: Where does the glucose in our body come from?
Tell students that today’s lesson asks, “Where is glucose found in food?” and involves a lab activity in which students look for glucose and other sugars in three kinds of milk (regular milk, chocolate milk and lactose-free milk).
First, students are going to create a paper model of simple and complex sugars.
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View the full lesson plan here:
Overview Students learn about different types of sugars and perform an experiment with two digestive enzymes to determine whether glucose is present in three types of milk. Students are introduced to Diastix as a method to measure glucose concentrations, and the use of digestive enzymes lactase and sucrase to demonstrate the release of glucose through the breakdown of carbohydrates in foods.
Enduring understanding: Glucose is the major energy source for most living organisms, through the process of cellular respiration. The food we eat can either be broken down to glucose, a single-ring sugar, or converted to glucose through the action of enzymes.
Essential question:
Learning objectives Students will be able to:
Prerequisite Knowledge Students should have an understanding of the following terms: enzyme, glucose, digestion, molecule.
This lesson provided by: Type 2 Diabetes: A complex disease of gene and environment interactions. Copyright 2014 by University of Washington. This curriculum was created by Genome Sciences Education Outreach (GSEO) and is supported by a Science Education Partnership Award (SEPA) from the Office of Research Infrastructure Programs (ORIP) of the National Institutes of Health through Grant Number R25OD010966. Permission is granted to download, reproduce through printing or photocopying, and distribute copies of Type 2 Diabetes: A complex disease of gene and environment interactions for non-commercial, educational purposes only, provided that credit for the source (GSEO and copyright (© 2014 University of Washington) is given. |
Entry Task:
Consumables (per class):
Lab Materials (per group):
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Ask students:
Answers:
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