Curated OER
Cell Division: Frog Egg Division Observation and Modeling
Students create and test a hypothesis about cell division. After observation of Frog Egg cell division, students write obervations and refine process and hypothesis. The use of scientific method, group work and inquiry are fostered by...
Curated OER
Animal Reproduction and Development
Details of fertilization, cleavage, the placenta and fetal development are presented, along with important diagrams and illustrations. By using these slides, you and your students will generate discussion points, along with details...
Curated OER
Zebrafish Development
Middle schoolers examine the early development of zebrafish as a model for embryo development in humans. They observe various stages of zebrafish reproduction from sperm and eggs to fertilized eggs and hatchlings.
Curated OER
investigating and Modeling Sea Urchin Fertilization and Development
High schoolers begin by using clay to model fertilization and early development of sea urchins and chordates. They move on to mixing live sea urchin sperm and ova together to observe, diagram and record events occurring in fertilization...
Howard Hughes Medical Institute
HIV Protease Inhibitors
How do doctors fight a virus that's constantly mutating? Show science scholars how we fight HIV using one of its own most fundamental processes through a thoughtful demonstration. The lesson focuses on how protease inhibitors prevent HIV...
Curated OER
Mitosis and Meiosis Exercise
In this cell division worksheet, students answer 15 multiple choice questions about both mitosis and meiosis. Topics include the outcomes of the processes, the phases of the processes and steps within each process.
Curated OER
Gene Regulation Mechanisms
Students explore genetics. They discuss how chromosomes and/or genes are regulated during the life of an organism. In a lab setting, students compare and contrast the genomic regulation of prokaryotic and eukaryotic cells using...
Curated OER
LP 6--8: Xenopus laevis (frog) Development for a 7th Grade Audience
Seventh graders view lab stations with Xenopus at different stages of development. They identify the life stage of the sample, as well as the previous and next stages. Students must explain their reason for selecting the specific stage.
Curated OER
Embryology as Evidence of Evolution
Students observe the two major developmental pathways (protostome and deuterostome). They analyze data regarding differences in nucleotide sequences and construct a phylogenetic tree. They observe the similar evolutionary history shared...
Curated OER
Mitosis And Meiosis
In this science worksheet, students answer 15 questions about mitosis and meiosis. For example, "What is a major feature of prophase in mitosis?"
Curated OER
Gene Regulation Mechanisms
Students explore the control of expression of DNA into proteins which is divided into two main categories: transcriptional and post-transcriptional. They construct examples of the control mechanisms and discuss disease processes that...
Curated OER
Elegant Embryology
Students observe embryogenesis in action through early stages of development of eggs. They observe cultures with dissecting and compound microscopes. They draw their egg, record any details and observe for changes. They compare their...
Curated OER
Pregnancy and Differentiation
In this pregnancy worksheet, students review the 5 steps of human development from ovulation to implantation plus embryo development. Students also review the 3 stages of birth. This worksheet has 8 fill in the blank, 4 drawing, and 3...