Montessori Sensorial Lesson: Thermic Bottles

Montessori Thermic Bottles are a Sensorial material that defines the child’s haptic sense. Children truly enjoy this work.

“These are the thermic bottles. Can you say ‘thermic’? If you would like to help me fill them up I can show you how to do some work with them.”

Fill up the bottles. You can do this part ahead of time.

After filling up the bottles, carry them to the work area and place it down on the mat

Pick up a bottle with a 3-finger grip and remove it from the basket.
Place it on the table to the left. Continue removing the bottles one by one and arrange them in a horizontal line in front of you.
“Now let’s feel the thermic bottles.”
Place the upper half of the inside of the fingers of both hands against either side of the bottle lightly.
Feel each bottle in a similar manner, pausing between each one.
Let the child feel the bottles.

“Now let’s see if we can find a pair. Let’s find a match for this one.” Isolate the first bottle below.
Feel the control, then feel each of the bottles. Pause and bring hands together after feeling each one.
Move matching pair slightly out of line.
Feel the control again, then the matching bottle: “These two match, these are a pair.”
Move the pair to the left side and isolate a new control.
Randomize the bottles and then offer the child a turn.

Complete Presentation I blindfolded or add an additional pair of bottles.

After sorting the bottles into pairs as in the other Presentations, say to the child: “Let’s find which pair is the coolest. This pair is the coolest.” Feel each pair and moves the coolest pair to the far left.
“Now which pair is the hottest? This pair is the hottest.” Feel each pair and move the hottest pair to the far right.
“This pair is warm.” Move the remaining pair between the first two. Feel each again to check order. Offer the child a turn.

For more see this resourceful post from Living Montessori Now: Inexpensive and DIY Thermic Materials

Best,
Marnie