Sensorial Lesson Descriptions
Knobless Cylinders
Age: 4 years and up
Material: Four boxes of cylinders:
Box Aten yellow cylinders which vary in height and diameter (corresponds with pink tower)
Box Bten red cylinders which vary in diameter (corresponds with brown stairs)
Box C ten green cylinders which vary inversely in both height and diameter
Box Dten blue cylinders which vary in height (corresponds with red rods)
Purpose: visual discrimination of dimension, preparation for mathematics
Presentation:

place box at edge of lower right or upper left corner of table mat

place cylinders out at random on the table mat

place cylinders in order from largest to smallest

move hand over finished cylinders and admire gradation of cylinders
Binomial Cube
Age: 3.5 years and up
Materials: mat, a box with 8 prisms which represent the elements of (a+b)^3, for example; a^3+3a^2b+3ab^2+b^3. 1 red cube, 3 black and blue, and 1 blue cube
Purpose: preparation for algebra, visual discrimination of form, construction of the cube
Presentation:

place box on upper left corner of the mat

lay top layer of cube in grouping on mat

organize cubes and prisms according to color in rows on the mat (all pieces with red in one row and all pieces with blue in the second row)

place lid in the corner of the box on the table mat (make sure picture is showing on lid)

start with red cube by corresponding it to the red square on the lid, place cube on the lid

place a red and black prism on the lid touching the red cube“red touches red.”

continue with blue cube and black/blue prisms

continue with the whole bottom layer

place hand on top of finished layer to show it is complete

continue steps with top layer

examine cube when done

take apart cube one piece at a time

let child work with the materials

put away the cube by first transferring the layers to the mat

build the cube into the box from left to right then top to bottom one layer at a time
Trinomial Cube
Age: 4 years and up
Materials: table mat, a box with 27 blocks which represent the elements of (a+b+c)^3, a^3+3a^2b+3a^2c+3ab^2+6abc+b^3+3b^2c+3ac^2+3bc^2+c^3. One red cube, one blue cube, one yellow cube, six red and black prisms, six blue and black prisms, six yellow and black prisms, and six all black prisms
Purpose: preparation for algebra, visual discrimination of form; construction of a cube
Presentation:

roll out mat on table

put box on upper left of mat

lay top layer of cube in grouping on mat

lay bottom layer in grouping without flipping upside down or on side

place lid out so picture is showing

start with red cube by placing it on the lid

next“red touches red” using red and black cube

continue with blue and black cube

continue with the whole bottom layer

place hand on top of finished layer

continue steps with middle layer starting with blue cube

continue with top layer starting with yellow cube

examine cube when done

take apart cube one piece at a time

allow child to work with the cube

put away the cube by first transferring the layers to the mat

build the cube into the box from left to right then bottom to top
Color Box 2
Age: 3 years and up
Materials: a box with 22 color tablets: two red, two blue, two yellow, two orange, two green, two purple, two white, two black, two pink, two gray, two brown
Purpose: visual discrimination of color, preparation for art
Presentation:

unroll a rug and take colors out at random

place the box at the lower right corner of the rug

take out each tablet at random only touching the white edges of the tablet

pick one tablet and hover tablet over other tablets until the match is found

slide matches to upper left corner of rug using two hands

continue matching all colors

when colors are matched correctly, ask the child the names by pointing to one color at a time

if child correctly names a color then put that match away in the box

if the child does not know the color do a three period lesson using one color that the child knows and one that the child does not know

place work back in the box one tablet at a time
The Pink Tower
Age: 2.5 years and up
Materials: ten pink cubes; first one is one cubic centimeter in size and the cubes increase regularly in size to the last one which is ten cubic centimeters.
Purpose: development of visual discrimination and dimension, preparation for mathematics; the decimal system
Presentation:

unroll floor rug

one by one place cubes at random on floor rug (make sure to hold each cube with two hands and all fingers)

teacher places first three on rug and child can finish the rest

“I am going to show you how to build a tower!”

build tower by grading blocks from largest to smallest

place each block on the center of the previous block

when tower is complete show the tower is gradual with hands

walk around tower to check that all sides are gradual

allow child to work on material

take a part the tower one cube at a time

build the tower on its side

starting with the largest cube place the tower back on the shelf or stand
The Red Rods
Age: 3 years and up
Material: ten red rods that only vary in length, the shortest one is ten centimeters long and the following one increases by ten centimeters each
Purpose: visual discrimination of the dimension of length, preparation for mathematics; metrics and decimal system
Presentation:

take out two floor rugs

starting with smallest rod, place the rods on the floor rug (one by one)

hold one hand at each end of the rodshow child to hold longest rod with one hand on the end and other hand as far as it can go on rod

line rods at the end of the rug at random making sure the edges are even

drag hand over rods, let hand drop dramatically and slide longest one out of edgealways close gaps on rug after taking one rod

show the longest rod then place on other rug

continue to place all rods on the other rug always finding the longest one

when all the rods are placed in order on the other rug check work with smallest rod

show that two or more rods can make the length of one

place rods where they belong starting with longest
Geometric Solids
Age: 2.5 years and up
Materials: A basket; ten geometric solids as follows: sphere, cube, cone, cylinder, rectangular prism, triangular prism, squarebased pyramid, triangular based pyramid, ovoid, ellipsoid
Purpose: visual and tactile discrimination of solid forms, prepartion for geometry
Presentation:

take one solid out at a time

let child hold and touch the solid

place solid on a surface

repeat process with two more solids three solids on the floor rug at a time

do a three part lesson naming each solid

after child masters the names of the solids:

put cloth over three solids

ask child to put hand under the cloth and find a solid

put away work one object at time
*don’t have to do a three period lesson right away if the child is not ready*
Constructive TrianglesTrianlge Box
Age: 3 years and up
Materials: a triangular box containing: 1 gray equilateral triangle, 2 green scalene rightangled triangles, 3 yellow isosceles obtuseangled triangles, 4 red equilateral triangles
Purpose: visual discrimination of form and construction of new forms, preparation for geometry
Presentation:

place all items at random from the box onto a flat surface

examine gray/control triangle and place the triangle at the lower left corner of the surface

group all pieces by color placing one on top of each other

start with the green pieces

trace black outline of one piece with two fingers

find other piece of the green group

slide the two pieces together making the black lines touch

slide constructed green triangle next to the control triangle

continue process with yellow group

continue process with red group starting with middle red triangle pointing towards the you

check triangles with control triangle

disassemble all triangles

let the child have a turn

put away materials starting with the control triangle then green, yellow and red triangles
Smelling Jars
Age: 4 years and up
Materials: a box or tray with eight opaque jars, in pairs of four different essences. (coffee, cinnamon, pepper, vanilla, ginger, coconut, garlic, detergent are all possibilities)
Purpose: development of olfactory sense, discrimination of smells, to make child conscious that things have different aromas
Presentation:

place work on a table

pick one jar and open

smell the jar without touching the nose to the jar

place the jar in front of you on the table

pick up another jar and sniff trying to find the match of the first jar

when the match is found place the pair in front of you

continue until all matches are found

put work away one jar at a time