Cell - Mates: Hooke, Mendel, Watson and Crick

A Workshop on Cells

Science Teachers Association of Texas

CAST 1996

        

Austin, Texas

November 9 - 11, 1995

Presented by:

Marcella Dawson 
St. Anne Catholic School
Houston, Texas 

Carlota Sweeney Wharton Elementary School, HISD Houston, Texas



Abstract

The purpose of this workshop is to present sequential activities that teach the parts and function of the cell, the characteristics of DNA, and heredity to middle school students.

The workshop will present a variety of activities investigating cell structure that are easy to understand and pique the interest of elementary and middle school students. Each activity can be simplified for lower grades are supplemented with more rigorous investigations. Mitosis and meiosis activities that concrete and hands-on will be completed. Several modelling techniques for DNA and DNA replication will be presented. Simple experiments for the investigation of heredity will be completed by workshop participants. A list of helpful URL Internet sites will be provided; a procedure for integrating electronic information will be outlined. Samples and handouts for each demonstration will be available.



CONTENTS

Microscopes
A Letter from LeeuwenhoekStudents analyze the historical changes in microscope technology.One
Robert HookeThis is a replication of Hooke's investigation.
Cell Structure
3-D Cell ModelA cell is constructed of common materials. Student write description and function of organelles.
Cell MuralA two dimensional model is made including all organelles.
Cell DatabaseStudents research each cell organelle and enter the information in a database.
Plant Cell LabSize in microns is calculated .
Plant Cell Lab - Onion CellsOnion cells are examined; organelles are identified and measured.
Plant Cell Lab - ElodeaElodea Cells are examined; structures identified and measured.
Cell Processes
Diffusion and OsmosisStudents investigate the permeability of various cell wall models.
Cell Membrane ModelStudents construct a model of the phospholipid molecules that make up a cell wall. A plastic bag and jelly beans is used to simulate the movement of molecules into a cell.
Mitosis
Stages of MitosisThe stages are described; students complete coloring and labelling; models of each stage are constructed.
Mitosis ModelLicorice is used to model chromosomes during mitosis.
Meiosis
Meiosis Chart and ModelStages are compared to mitosis; students construct models of each stage.
KaryotypesA model of chromosomes is used; students pair each of the chromosomes and determine whether the organism is male or female based on their pairings.
Punnet SquaresThis exercise provides practice in calculating probability of geno- and phenotypes with one and two chromosomes.
DNA
DNA ModelStudents use beads to build a simulated model of a gene.
DNA ReplicationBeads are used to simulate the replication of a DNA strand.
Inheritance
The Genetic CodeA sequence of symbols is used to model DNA. Students determine the Pattern, or code.
Whose Eyes?Common inherited traits are identified. Students determine whether or not they have the dominant or recessive trait.
Ninsect ActivityStudents use a hypothetical organism to determine the geno- and phenotypes of several generations.
Have You Found Your Long Lost Twin?Phenotypes are observed and plotted on a genetic wheel.
Did Mother Nature Give You a Fair Shake?Dice are you used to model probability of inheriting a certain trait.


Send your comments.

You are visitor #. Thanks for stopping by.

These pages were developed through GirlTECH '96, a teacher training and student technology council program sponsored by the Center for Research on Parallel Computation (CRPC), a National Science Foundation Science and Technology Center.