Login or register now to maximize your savings and access profile information, order history, tracking, shopping lists, and more.
Our Customer Service team is available from 8am to 6:00pm, ET, Monday through Friday. Live chat is available from 8am to 5:30pm ET, Monday-Friday.
We serve educators in more than 170 countries worldwide. Create a quote request on our website or contact our International Sales Team.
Login or register now to maximize your savings and access profile information, order history, tracking, shopping lists, and more.
Your Shopping Cart is currently empty. Use Quick Order or Search to quickly add items to your order!
This hands-on lab allows students to explore selection by observing, collecting, and analyzing phenotype data from 2 plant generations. It is appropriate for high school students and provides enough materials for 10 lab groups. Supports NGSS and 3-dimensional instruction.
Grades 9–12. Starting with the hands-on portion of the lab, students grow Wisconsin Fast Plants® seedlings that can be dicots (having 2 cotyledons) or polycots (having more than 2 cotyledons). Students grow a first generation and are asked to note what traits they see as varying among the seedlings. Through discussion, students' attention is gradually focused on the difference in cotyledon number. They are asked to develop an experiment to help determine why the seedlings vary in cotyledon number. Is the trait genetically or environmentally determined? In the second investigation, students germinate second generation seeds that were produced by a cross of 2 parents that both exhibited the polycot trait. Students then observe whether the percentage of polycots in the 2 generations differs and determine the statistical significance of any observed difference.
Time Requirement
Approximately six 50-minute class periods over the course of 9 to 10 days.
Digital Resources
Includes 1-year access to digital resources that support 3-dimensional instruction for NGSS. Digital resources may include a teacher manual and student guide, pre-lab activities and setup videos, phenomenon videos, simulations, and post-lab analysis and assessments.
Performance Expectation(s)
HS-LS4-3
HS-LS4-4
Crosscutting Concepts
Patterns
Stability and Change
Disciplinary Core Ideas
Biological Evolution: Unity and Diversity
Science and Engineering Practices
Analyzing and Interpreting Data
Constructing Explanations
Learning Objectives
Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait. Construct an explanation based on evidence for how natural selection leads to adaptation of populations.
Prerequisite Knowledge and Skills
