educational materials - SPECTRUM Nasco Shopping Mall Divisions

Biology
Anatomy
Stages of Fertilization
and the Development of the Embryo
Schematic illustrations 2 times magnified show how an
ovum matures, how ovulation and fertilization occur,
and how the fertilized ovum develops to the point of
embedding itself in the womb wall to begin growth into
an embryo. The various stages are shown in larger-thanlife
models of an ovary, fallopian tube, and womb. An
enlarged illustration of each is printed on the base. 13 3 ⁄4"
x 8 1 ⁄4" x 7 3 ⁄4". Three-year warranty.
Grade 10 and up. Sh. wt. 6.50 lbs.
SB45360M — $351.00
Fetus Development Set
Set of eight models (14 pieces) illustrates the detailed
stages of pregnancy development. Includes a first-month
embryo, second-month embryo, third-month embryo,
fourth-month fetus in transverse lie position, fifth-month
fetus in breach position, fifth-month fetus in transverse
lie position, fifth-month twin fetuses, and seventh-month
fetus. Each model is on a base and measures approx.
4-1⁄2" x 6" x 8". Sh. wt. 9 lbs.
SB47759M — $230.90
Cell to Embryo Model
This model shows the stages of development of the
cell from fertilization to formation of the embryo.
Enlarged cutaway views show the ovary emitting
ovum into the uterus and the path of the sperm. The
18" x 24", three-dimensional model is of lightweight,
sturdy construction. Comes with a teacher activity
binder that includes lesson plans for both class and
individual study, blackline masters, and a transparency.
Grades 6-12. Sh. wt. 1.45 kgs.
SB07915M — $166.55
Male Pelvis Model
(4 Part)
Composed of four parts,
this life-size model
presents an open view
through a median sagittal
section of the pelvis.
Internal structures of the
male urogenital system
are represented in fine
detail. The removable
parts include
a half penis divided
into medial and
transverse sections, and
half of the male reproductive system
with an open dissection of a testis showing details of the
internal structure. Mounted on base. 10" x 7" x 10 3 ⁄4".
Sh. wt. 3.56 lbs.
LA00248M — $232.05
Female Reproductive System
Cross-sectional and dissectional views of the reproductive
organs within the female pelvic region accurately show
relative size and location. The ovaries, fallopian tubes, uterus,
and vagina demonstrate the origin of the ovum in the
ovaries, and the process to fertilization and implantation
in the uterus. An enlarged inset details the structure of a
single ovum. Model is approximately 1 1 ⁄2 times life-size. The
18" x 24", three-dimensional model is of lightweight, sturdy
construction. Teacher activity binder includes lesson plans
for both class and individual study, blackline masters, and a
transparency. Grades 5-12. Sh. wt. 1.36 kgs.
SB10420M — $166.55
Male Reproductive System
Model illustrates the pelvic area of the human male
approximately 1 1 ⁄2 times life-size. A male sex cell, or
spermatozoon, in inset is enlarged over 16,000 times and
sectioned for concrete visualization of its structure. Shows
basic components of the male reproductive system —
prostate gland, testicles, and penis — to provide a clear
demonstration of the origin and discharge of sperm. 18"
x 24", three-dimensional model is of lightweight, sturdy
construction. Teacher activity binder includes lesson plans
for both class and individual study, blackline masters, and
a transparency. Grades 5-12. Sh. wt. 1.36 kgs.
SB10419M — $166.55
BEST
SELLER
Female Pelvis Model with
8-Week Embryo (3 Parts)
Life-size model composed of three parts gives an internal
view through the median sagittal section of the pelvis.
Shows the internal organs of the female urinary and
reproductive systems with an eight-week embryo in utero.
Mounted on base. 9 7 ⁄8 " x 7" x 10 5 ⁄8". Sh. wt. 3.56 lbs.
LA00252M — $291.55
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Mitosis
This model illustrates cell division from single cell to
formation of two new cells. Identifies nucleus, centrioles,
centrosome, chromatin, chromosomes, spindle, and aster.
The 18" x 24", three-dimensional model is of lightweight,
sturdy construction. Comes with a teacher activity binder
that includes lesson plans for both class and individual
study, blackline masters, and a transparency. Grades 6-12.
Sh. wt. 1.36 kgs.
SB01680M — $166.55
Tel: 1.800.668.0600 Fax: 1.800.668.0602
Meiosis
Depicts the process whereby the number of chromosomes
in the reproductive cells is reduced to half the
amount found in other body cells. Students can trace the
steps in this change; identify chromosomes, cytoplasm,
chromatin and polar bodies; and see how the fertilized
egg will contain the correct number of chromosomes for
human reproduction. The 18" x 24", three-dimensional
model is of lightweight, sturdy construction. Comes with
a teacher activity binder that includes lesson plans for
both class and individual study, blackline masters, and a
transparency. Grades 5-12. Sh. wt. 1.45 kgs.
SB01681M — $166.55