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Lemonade. Activity for the 1 st cycle. Educational Aim. This LES serves as a pretext to:. -the exploration of the conservation of matter (liquid quantities and volume) -the development of good work methods; -initiate the concept of solubility;

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Lemonade

Lemonade

Activity for the 1st cycle


Educational aim

EducationalAim

This LES serves as a pretext to:

-the exploration of the conservation of matter (liquid quantities and volume)

-the development of good work methods;

-initiate the concept of solubility;

-problem resolution (economic aspect of consumption).


Activity 1

Conservation of matter (liquids quantities and volume).

Activity 1


Student s hypotheses

Student’shypotheses


Students in action

Students in action


Activity 3

Mixtures

Activity 3

Material

A preparation guide has been supplied for all the activities. We tried to establish a materials list using every day items.


Lemonade

Mixtures – Theoretical capsule

  • What is a mixture? (4 definitions)

  • What are the two types of mixtures?

Homogenous

Heterogeneous

We can not distinguish the different substances present at the start.

We can distinguish the different substances that have been mixed (not always to the naked eye).


Lemonade

Mixtures – Theoretical capsule

  • What is dissolution?

  • Difference between soluble and non soluble

  • Collective demonstration to « live » dissolution

  • Experiments by the students


Lemonade

Mixtures – Student observations

  • On top, there is water, at the bottom, the sand.

  • The water has changed colours. There are grains (pepper).

  • The grains (Epsom salts) have disappeared.


Lemonade

Mixtures – Student observations

  • The grains of sand stay at the bottom of the water and it’s transparent.

  • I put the water in after some sand. I mixed it and the water was kind of mixed with dust and the sand had not disappeared.

  • The water looks yellowish. The water level is higher. (brown sugar)


Activity 4

Mixtures - Demonstrations

Activity 4

Video 1 – 1 tablespoon of flavour crystals

Video 2 – 3 tablespoons of flavour crystals

Video 3 – 12 tablespoons of flavour crystals


Activity 41

Mixtures

Activity 4

Observation of demonstrations


Activity 42

Mixtures

Activity 4

Students observations


Situational problem related to mathematics

Situationalproblemrelated to mathematics


Comment

Comment

It may be difficult to manage the activity alone. The teacher would redo the activity with a colleague.


Lemonade

Thanks to Maxime and Marie-Soleil from La Mennais school, CSDM.


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