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Students create their own ice cream.
Problem(s) to be tackled
How can we produce a healthy ice cream?
Real-world motivation
Many of the nice things that we eat are full of sugar that is unhealthy for us humans. Let us create a healthy ice cream of natural ingredients that both tastes good and is good for us. Can you help us create a healthy ice cream?
Skills
- Formulate and solve problems (M)
- Choose and use appropriate mathematical methods in order to solve a problem (M)
- Mathematical skills such as measurement (M)
- Identify and work out proposals for solutions (T, E)
- Create an ice cream (T, E)
- Geometric shapes/forms (M)
- investigate scientific concepts and test their own formulated hypotheses (S)
Knowledge
Mathematics
- Measurement
- quantitative comparison
- Volume
- Mathematical concepts such as quantity, weight, volume
Science
- Learning some characteristics of water: water cycle, surface tension
- Health in relation to food
- senses, taste, colour
Introduction
The teacher introduces the activity: A hot day... It would be nice to have a delicious ice cream! Can we make our own?
What is ice cream made of?
The key ingredient of ice cream is 'water'.
Ask the students... 'Is water important?' and 'Why is water important?'
Have the students write it down as a mind map. Discuss their answers.
The water cycle
This step and the next steps are about the specific properties of water like the water cycle and surface tension.
As a teacher you can choose to skip immediately to step 9 and 10, in which inquiry, design, optimizition go hand in hand while creating ice cream.
This step is about the water cycle. Let the students draw the water cycle.
Watch a video about the water cycle.
Experiment: the water cycle
Together with the children you can do the experiment about the water cycle. (see downloads, experiment 1).
Use the correct terminology for the phases (melting, condensation, evaporation)
Experiment: surface tension
Children experience the concept of surface tension. (see downloads, experiment 2)
Poster about the water cycle
Art/picture: Draw the water cycle and write down the facts.
The phases of water
The three phases of water. Introduction about the phases of water. Retell.
Experiment about the three phases of water
Worksheet: Experiment; The three phases of water; gas, liquid and solid.
How to measure?
Lesson about volume and how to weigh and measure.
Ingrediënts for ice cream
Lesson about ingredients: vitamins, nutrients in certain foodstuffs and the fruits and berries that will be used when making the ice cream. Discussion about healthy eating habits, fructose versus added sugar and being sugar smart.
Making Ice cream
Worksheet: We produce our own ice cream by using all the knowledge we have learned. We repeat the concepts in mathematics, science and technology. We produce sugar smart ice cream with only fructose and use water and watermelon as a base.
Materials
Worksheet for students, movies, ice cream sticks, measuring cup, kitchen scales, plate, baking paper.
Grouping
Students will work in different group configurations (3, 4 or 5 in each group, depending on the size of the class) during this activity. When creating the ice cream, students will work in their Groups.
Useful questions
- How can we make ice cream?
- Which ingredients are there in ice cream?
- What are the 3 forms in which water can appear?
- How do we call the transition from gas to liquid, from liquid to solid, from solid to liquid, ... ?
- Which ingredients are you going to use in your ice cream?
- What can you do to improve the taste of your ice cream? (change one thing at a time = fair inquiry)
Adaptations (abilities of age group, within the group, etc.)
Students will work based on their abilities, level-adjusted.
Assessment
Teacher’s assessment
The assessment will take place in a formative way during the course of the activity.
Student's assessment
Student questionnaire before and after.
Tips and tricks
Geometric shapes: We look at 2D and 3D shapes and compare. The children practise the ability to reflect and reason.
Draw the shapes by using a ruler.